1
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Wu L, Wu Q, Han Y, Zhang D, Zhang R, Song N, Fang Y, Liu H, Wang M, Chen J, Du A, Huang K, Yao X. Constructing Asymmetric Defects Pairs in Electrocatalysts for Efficient Glycerol Oxidation. J Am Chem Soc 2025; 147:18033-18043. [PMID: 40377144 DOI: 10.1021/jacs.5c03703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2025]
Abstract
Disrupting the charge distribution equilibrium in catalysts is an effective strategy for the polarization and cleavage of small molecules during the electrocatalytic process. To achieve effective C-C bond cleavage in multicarbon molecules, such as glycerol, integrating the advantages of defect sites while creating spatially asymmetric sites that modulate the local electronic perturbations is both promising and challenging. In this study, spatially asymmetric defect pairs were engineered by partially refilling sulfur atoms into spinel CuCo2Ox with a high oxygen vacancy density (HVo-S). These oxygen defect-refilled S pairs (Vo-S) enhance the local charge transfer, reduce the energy barrier for glycerol adsorption, and create thermodynamically favorable conditions for the second C-C bond cleavage, whereas the high density of oxygen vacancies further amplifies the local electronic perturbations. Exploiting the spatial effects of asymmetric defect sites, HVo-S demonstrated superior performance compared to HVo without Vo refilling, achieving Faradaic efficiencies (FE) of 98.5% and 75.3% at 1.36 V vs RHE for formic acid in the glycerol oxidation reaction (GOR), respectively. Significantly, this strategy also promotes C-C bond cleavage during the electrooxidation of ethylene glycol and glucose, further confirming its broad applicability in activating C-C bonds in polyol substrates. This study elucidates the role of the spatial effects of localized asymmetric defect sites in the GOR process, providing new insights for the design of novel electrocatalysts aimed at promoting C-C bond cleavage in polyol molecules.
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Affiliation(s)
- Liyun Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Qilong Wu
- Intelligent Polymer Research Institute, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, New South Wales 2500, Australia
| | - Yun Han
- School of Engineering and Built Environment, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Brisbane, Queensland 4111, Australia
| | - Dongdong Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Rongrong Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Nan Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Yiqing Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Haodong Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Mingyue Wang
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), Innovation Campus, University of Wollongong, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Jun Chen
- Intelligent Polymer Research Institute, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, New South Wales 2500, Australia
| | - Aijun Du
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane 4001, Australia
| | - KeKe Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Xiangdong Yao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- School of Advanced Energy and IGCME, Sun Yat-Sen University (Shenzhen), Shenzhen, Guangdong 518107, P. R. China
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2
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Lu Q, Liu J, Zou X, Huang B, Wu W, Yin J, Liu ZQ, Wang Y. Breaking the Activity-Stability Trade-Off of RuO 2 via Metallic Ru Bilateral Regulation for Acidic Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2025; 64:e202503733. [PMID: 40123341 DOI: 10.1002/anie.202503733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2025] [Revised: 03/14/2025] [Accepted: 03/23/2025] [Indexed: 03/25/2025]
Abstract
Developing highly efficient acidic oxygen evolution reaction (OER) electrocatalysts is crucial for proton exchange membrane water electrolyzer. RuO2 electrocatalysts, which followed a kinetically favorable lattice oxygen mechanism, perform a preferable intrinsic activity, but poor stability for acidic OER. Recent work often sacrifices the intrinsic activity of RuO2 to enhance stability. The balance between the activity and stability of RuO2-based catalysts is still overlooked in current research. Here, we report a controlled method to introduce metallic Ru onto RuO2 catalysts to form the Ru4+─O─Ru0 interfacial structure for decreasing the Ru4+ oxidation state and promoting deprotonation kinetics. Metallic Ru can serve as the electron donor to lower the oxidation state of *Vo-RuO4 2- in Ru/RuO2 for stabilizing the structure of *Vo-RuO4 2--Ru/RuO2 to favour the acidic OER stability. Moreover, the deprotonation kinetics via the interfacial oxygen site between Ru4+ and Ru0 is significantly enhanced on Ru/RuO2 catalysts to improve the acidic OER activity. This work offers a unique perspective to balance the acidic OER activity and stability of RuO2.
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Affiliation(s)
- Qian Lu
- Department of Chemistry, The Chinese University of Hong Kong, Ma Lin building, Shatin 999077 N.T., Hong Kong SAR, P.R. China
- School of Environmental Science and Technology, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing, 210044, P.R. China
| | - Jinjie Liu
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077 N.T., Hong Kong SAR, P.R. China
| | - Xiaohong Zou
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, 999077 N.T., Hong Kong SAR, P.R. China
| | - Birou Huang
- Department of Chemistry, The Chinese University of Hong Kong, Ma Lin building, Shatin 999077 N.T., Hong Kong SAR, P.R. China
| | - Weixing Wu
- Department of Chemistry, The Chinese University of Hong Kong, Ma Lin building, Shatin 999077 N.T., Hong Kong SAR, P.R. China
| | - Jun Yin
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077 N.T., Hong Kong SAR, P.R. China
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, P.R. China
| | - Ying Wang
- Department of Chemistry, The Chinese University of Hong Kong, Ma Lin building, Shatin 999077 N.T., Hong Kong SAR, P.R. China
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3
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Huang L, Ma L, Yang J, Kang J, Chen Y, Yan J, Fang Y, Li D, Jiang R. Electron donation from carbon support enhances the activity and stability of ultrasmall ruthenium dioxide nanoparticles in acidic oxygen evolution reaction. J Colloid Interface Sci 2025; 686:438-447. [PMID: 39908836 DOI: 10.1016/j.jcis.2025.01.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2024] [Revised: 01/20/2025] [Accepted: 01/31/2025] [Indexed: 02/07/2025]
Abstract
Developing non-iridium (Ir)-based electrocatalysts with good stability and activity for acid oxygen evolution reaction (OER) is of great importance for electrocatalytic water splitting. Ruthenium dioxide (RuO2), which has lower price and higher OER activity, has been recognized as an attractive alternative to Ir-based electrocatalyst for acidic OER. However, the stability of most Ru-based electrocatalysts faces a great challenge in acidic condition. Here, a highly stable and active RuO2-based catalyst, tiny RuO2 nanoparticles inlaid onto carbon support (RuO2/C), is successfully prepared for acidic OER. Such a structure can efficiently inhibit the over-growth of RuO2 nanoparticles and prevent the agglomeration of RuO2 nanoparticles. Moreover, it is found that carbon support donate electron to RuO2 nanoparticles, which enhances the OER activity and stability of RuO2 during acidic OER. The RuO2/C exhibits an impressive OER performance with a low overpotential (197 mV at 10 mA cm-2) and low degradation rate (0.035 mV h-1) over a 450-h stability test in 0.5 M H2SO4, which are much better than the commercial Ir/C, RuO2 and the reported Ru-based electrocatalysts. This work provides an efficient strategy to simultaneously improve both stability and activity of Ru-based catalysts for acidic water oxidation.
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Affiliation(s)
- Luo Huang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Lixia Ma
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Jie Yang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Jianghao Kang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Yu Chen
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Junqing Yan
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Yunpeng Fang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Deng Li
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China
| | - Ruibin Jiang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119 China.
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4
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Qin Y, Guo L, Liu C, Zhang J, Wang Q. Tailoring coordinated steps with Ni-substituted Co 3O 4 asymmetric active unit for durable and efficient acidic water oxidation. J Colloid Interface Sci 2025; 695:137828. [PMID: 40359633 DOI: 10.1016/j.jcis.2025.137828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2025] [Revised: 04/09/2025] [Accepted: 05/05/2025] [Indexed: 05/15/2025]
Abstract
Developing highly active and robust non-noble metal-based electrocatalysts for acidic oxygen evolution reaction (OER) is still tremendously challenging. Herein, we prepared a Ni substituting octahedral Co sites in Co3O4 catalyst with simultaneously enhanced activity and durability, evidenced by an overpotential of 334 mV at 10 mA cm-2 and exceptional stability exceeding 130 h. The resulting asymmetric active Co-O-Ni coordinated with strong electron coupling effects accelerates the electron transfer from Ni to Co sites for enhanced activity and stability. In-situ characterizations and DFT calculations demonstrate that the extended Co-O bonds with weaker covalency suppress the lattice oxygen involved in the reaction and follow the adsorbate evolution mechanism (AEM) to maintain the stable structure. The dopant Ni atoms modulate the *OH coverage on the surface to facilitate the OO coupling and promote the coordinated steps of OER, which are beneficial for accelerating the OER kinetics. This work not only develops an efficient noble metal-free electrocatalyst for acidic OER but also proposes a fundamental insight into modulating *OH coverage for designing efficient catalysts.
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Affiliation(s)
- Yue Qin
- State Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Lili Guo
- State Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Chang Liu
- State Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Junfeng Zhang
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300072, PR China
| | - Qingfa Wang
- State Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, PR China.
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5
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Pan T, Wang Y, Zhang S, Wang D, Li Q, Pang H. MOF-Based Electrocatalysts for Water Electrolysis, Energy Storage, and Sensing: Progress and Insights. CHEM REC 2025; 25:e202400253. [PMID: 40270252 DOI: 10.1002/tcr.202400253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2024] [Revised: 03/30/2025] [Indexed: 04/25/2025]
Abstract
Metal-organic frameworks (MOFs) and their derivatives have shown broad application prospects in fields such as water electrolysis, electrochemical energy storage, and sensing due to their high specific surface area, tunable structures, and abundant active sites. This article provides a comprehensive overview of our research group's recent advancements in developing MOF-based electrocatalysts for Oxygen Evolution Reaction (OER) and Urea Oxidation Reaction (UOR) at anodes, as well as Hydrogen Evolution Reaction (HER) at cathodes during water electrolysis. Furthermore, we have integrated these catalysts into practical applications, including metal-air batteries, lithium-sulfur batteries, and non-enzymatic glucose sensors. To further demonstrate the innovative contributions of our work, we systematically compare it with the advanced work by other groups. Based on these findings and performance benchmarking analyses, we identify critical challenges that must be addressed to advance MOFs-based electrocatalysts toward next-generation energy conversion and sensing.
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Affiliation(s)
- Tao Pan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Yingying Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Sicong Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Dianhui Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Qing Li
- Guangling College, Yangzhou University, Yangzhou, 225009, Jiangsu, PR China
| | - Huan Pang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
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6
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Fu Y, Liu C, Song L, Zhao S, Huang M, Li Z, Tang H, Lu Y, Xu J, Liu Q. Electron Itinerancy Mediated by Oxygen Vacancies Breaks the Inert Electron Chain to Boost Lithium-Oxygen Batteries Electrocatalysis. Angew Chem Int Ed Engl 2025; 64:e202501837. [PMID: 40079665 DOI: 10.1002/anie.202501837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2025] [Revised: 02/22/2025] [Accepted: 03/13/2025] [Indexed: 03/15/2025]
Abstract
The synergistic effect of dopants and oxygen vacancies (Vo) in metal oxides is crucial for enhancing the adsorption and electron transfer processes in lithium-oxygen (Li-O2) batteries; however, the underlying mechanisms remain unclear. Herein, Ru single-atom-modified TiO2 nanorod array (Ru1-TiO2- x) electrocatalysts with abundant Vo were fabricated, serving as an efficient catalyst for Li-O2 batteries. Experimental and theoretical investigations have demonstrated that Vo functions as an "electron pump", facilitating electron itinerant behavior, while Ru1 serves as an "electron buffer" to further activate the [Ru-O-Ti] electronic chain. This synergistic interplay endows Li-O2 batteries with a highly active and stable bidirectional self-regulating capability during the process of circulation, exhibiting an ultra-low charge polarization (0.42V) and exceptional cycling stability (1680 h). Vo and Ru1 synergistically modulate the d-band center at the Ti site to establish an adaptively tunable Ru-Ti dual-active site. This adjustment effectively balances the binding strength with the interface oxygen intermediate (*O), thereby significantly reducing the activation barrier. The Hamiltonian layout further revealed the crucial role of remote orbital coupling in maintaining the structural stability. This study not only provides profound insights into Vo-dependent electron transfer kinetics but also proposes new strategies and theoretical guidance for the activation of inert materials.
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Affiliation(s)
- Yaning Fu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Chunmei Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Lina Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Shaoze Zhao
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Mengyao Huang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Zhongjun Li
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Huabiao Tang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Youcai Lu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Jijing Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Qingchao Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
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7
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Wang H, Lin C, Tan L, Shen J, Wu X, Pan X, Zhao Y, Zhang H, Sun Y, Mei B, Um HD, Xiao Q, Jiang W, Li X, Luo W. Atomic Ga triggers spatiotemporal coordination of oxygen radicals for efficient water oxidation on crystalline RuO 2. Nat Commun 2025; 16:3976. [PMID: 40295496 PMCID: PMC12037759 DOI: 10.1038/s41467-025-58346-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2024] [Accepted: 03/20/2025] [Indexed: 04/30/2025] Open
Abstract
Advancements in proton-exchange membrane water electrolyzer depend on developing oxygen evolution reaction electrocatalysts that synergize high activity with stability. Here, we introduce an approach aimed at elevating oxygen evolution reaction performance by enhancing the spatiotemporal coordination of oxygen radicals to promote efficient O-O coupling. A dense, single-atom configuration of oxygen radical donors within interconnected RuO2 nanocrystal framework is demonstrated. The stable oxygen radicals on gallium sites with adaptable Ga-O bonds are thermodynamically favorable to attract those from Ru sites, addressing dynamic adaptation challenges and boosting O-O coupling efficiency. The optimized catalyst achieves a low overpotential of 188 mV at 10 mA cm-2, operates robustly for 800 h at 100 mA cm-2 in acidic conditions, and shows a large current density of 3 A cm-2 at 1.788 V, with stable performance at 0.5 A cm-2 for 200 h, confirming its long-term viability in proton-exchange membrane water electrolyzer applications.
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Affiliation(s)
- Haifeng Wang
- School of New Energy, Ningbo University of Technology, Ningbo, PR China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Chao Lin
- School of New Energy, Ningbo University of Technology, Ningbo, PR China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Lei Tan
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Jing Shen
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Xiaotong Wu
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Xiangxiang Pan
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Yonghui Zhao
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), No. 100, Haike Road, Pudong New District, Shanghai, PR China
| | - Haojie Zhang
- Max Planck Institute of Microstructure Physics, Weinberg 2, Halle (Saale), Germany
| | - Yu Sun
- Institute for the Advancement of Higher Education, Hokkaido University, North-10 West-8 Kita-ku, Sapporo, Japan
| | - Bingbao Mei
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, PR China
| | - Han-Don Um
- Department of Chemical Engineering Kangwon National University Chuncheon, Gangwon, Republic of Korea
| | - Qi Xiao
- School of New Energy, Ningbo University of Technology, Ningbo, PR China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Wan Jiang
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China
| | - Xiaopeng Li
- School of New Energy, Ningbo University of Technology, Ningbo, PR China.
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China.
| | - Wei Luo
- School of New Energy, Ningbo University of Technology, Ningbo, PR China.
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, PR China.
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8
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Weng Y, Sun L, Jia H, Shang W, Chen JJ, Dhara B, Chen Y, Huang F, Han S, He H, Yin B, Zhang C, Liu B, Chen Z, You J, Miyajima D, Zhang C. Homonuclear/Heteronuclear Bimetallic Conjugated Coordination Polymers with Customized Oxygen Evolution Pathway. J Am Chem Soc 2025; 147:13928-13936. [PMID: 40211888 DOI: 10.1021/jacs.5c02700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2025]
Abstract
The reasons for the generally superior performance of synergistic effects in bimetallic catalysts in the oxygen evolution reaction (OER) are not fully understood, largely due to the complexity of catalyst structures and the challenges associated with synthesizing long-range atomic ordering catalysts. In this study, we present a series of two-dimensional (2D) conjugated bimetallic coordination polymers (c-CPs) involving Co or Ni with unambiguous and nearly identical geometry structures for the electrocatalysis of OER, which are highly suitable for discussions on structure-property correlations. The heteronuclear CoNi-PI unexpectedly alters the OER catalytic mechanisms from adsorbate evolution mechanism those observed in homonuclear CoCo-PI and NiNi-PI to the kinetically faster oxide path mechanism, exhibiting high stability and an ultralow overpotential of 282 mV even at 100 mA cm-2 with a Tafel slope of approximately 42 mV dec-1. This study presents an extremely rare crystalline heteronuclear bimetallic catalyst with excellent catalytic properties, promising significant influences in catalyst development research.
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Affiliation(s)
- Yuhao Weng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Lizhi Sun
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Hao Jia
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Wenjuan Shang
- Analytical & Testing Center, Sichuan University, Chengdu 610064, Sichuan, P. R. China
| | - Jie-Jie Chen
- CAS Key Laboratory of Urban Pollutant Conversion Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Barun Dhara
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako 351-0198, Saitama, Japan
| | - Yong Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Fei Huang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Shu Han
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Hangjuan He
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Baipeng Yin
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Chuang Zhang
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ben Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Zhongxin Chen
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Daigo Miyajima
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, P. R. China
| | - Cheng Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
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9
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Liang C, Ai H, Lin L, Lu X, Li L, Zhang H, Wang P, Zheng Z, Wang Z, Cheng H, Dai Y, Xing D, Huang B, Liu Y. The Cu─O─Co Asymmetric Bimetallic Sites Constructed by Ion-Exchange for Efficient Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025:e2500744. [PMID: 40249330 DOI: 10.1002/smll.202500744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2025] [Revised: 03/13/2025] [Indexed: 04/19/2025]
Abstract
Recently, constructing oxygen-bridged asymmetric bimetallic sites has proven to be an effective strategy for enhancing electrocatalytic activity. The strong electronic interaction between the metals regulates the d-band center, optimizing the adsorption and desorption of oxygen intermediates and lowering the oxygen evolution reaction (OER) energy barrier. However, examples of constructing such asymmetric sites in π-d conductive metal-organic frameworks (cMOFs) are still scarce. Here, the Co/Cu-DBC (DBC = Dibenzo-[g,p]chrysene-2,3,6,7,10,11,14,15-octaol) with high crystallinity and asymmetric Cu─O─Co bimetallic sites are prepared using an ion-exchange method. By varying the reaction temperature and time, the metal content can be precisely controlled. The Co/Cu-DBC shows excellent OER activity, with a small overpotential of 251 mV at 10 mA cm-2. Both experimental and density functional theory (DFT) calculations indicate that the construction of asymmetric Cu─O─Co sites leads to strong electronic interactions between Cu and Co through the axial oxygen atom, which regulates the d-band center energy (Ed) level and electronic structure to optimize the adsorption of intermediates and facilitate the formation of *O intermediates on the active Co sites toward fast OER kinetics. This work provides new insights for the synthesis and the design of efficient OER catalysts.
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Affiliation(s)
- Congcong Liang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Haoqiang Ai
- Shandong Institute of Advanced Technology, Shandong, 250100, P. R. China
| | - Lingtong Lin
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Xingye Lu
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Liang Li
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Honggang Zhang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Peng Wang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Zhaoke Zheng
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Zeyan Wang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Hefeng Cheng
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Ying Dai
- School of Physics, Shandong University, Shandong, 250100, P. R. China
| | - Danning Xing
- Shandong Institute of Advanced Technology, Shandong, 250100, P. R. China
| | - Baibiao Huang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Yuanyuan Liu
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
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10
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Jiang X, Zhu J, Jiang M, Zhang P, Wen W, Cai W, Ding Y, Sun P, Cao M. Interstitial-Substitutional-Mixed Solid Solution of RuO 2 Nurturing a New Pathway Beyond the Activity-Stability Linear Constraint in Acidic Water Oxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025:e2503354. [PMID: 40223367 DOI: 10.1002/adma.202503354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2025] [Revised: 03/20/2025] [Indexed: 04/15/2025]
Abstract
The acidic oxygen evolution reaction (OER) electrocatalysts for proton exchange membrane electrolyzer (PEMWE) often face a trade-off between activity and stability due to inherent linear relationship and overoxidation of metal atoms in highly oxidative environments, while following the conventional adsorbate evolution mechanism (AEM). Herein, a favorable AEM-derived proton acceptor-electron donor mechanism (PAEDM) is proposed in RuO2 by constructing interstitial-substitutional mixed solid solution structure (denoted as C,Ta-RuO2), which can effectively break the activity-stability trade-off of RuO2 in acidic OER. In situ spectroscopy experiments and theoretical calculations reveal that the interstitial C as the proton acceptor reduces the deprotonation energy barrier, enhancing catalytic activity, while the substitutional Ta as the electron donor donates electrons to the Ru sites via bridging oxygen, weakening the Ru─O bond covalency and preventing over-oxidation of surface Ru, thereby ensuring long-term stability. Under the guidance of this mechanism, the optimized C,Ta-RuO2 simultaneously achieves far low overpotential (η10 = 171 mV) and ultra-long stability (over 1300 h) for the acidic OER. More remarkably, a homemade PEMWE using C,Ta-RuO2 as the anode also shows high water splitting performance (1.63 V@1 A cm-2). This work supplies a novel strategy to guide future developments on efficient OER electrocatalysts toward water oxidation.
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Affiliation(s)
- Xue Jiang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Jie Zhu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Minxia Jiang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Pengfei Zhang
- State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, College of Marine Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Wei Wen
- State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, College of Marine Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Wenwen Cai
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Yupei Ding
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Pingping Sun
- School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Minhua Cao
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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11
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Wu X, Meharban F, Xu J, Zhao Z, Tang X, Tan L, Song Y, Hu W, Xiao Q, Lin C, Li X, Xue Y, Luo W. Anode Alchemy on Multiscale: Engineering from Intrinsic Activity to Impedance Optimization for Efficient Water Electrolysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025; 21:e2411704. [PMID: 40042317 DOI: 10.1002/smll.202411704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2024] [Revised: 02/12/2025] [Indexed: 04/11/2025]
Abstract
The past decade has seen significant progress in proton exchange membrane water electrolyzers (PEMWE), but the growing demand for cost-effective electrolytic hydrogen pushes for higher efficiency at lower costs. As a complex system, the performance of PEMWE is governed by a combination of multiscale factors. This review summarizes the latest progress from quantum to macroscopic scales. At the quantum level, electron spin configurations can be optimized to enhance catalytic activity. At the nano and meso scales, advancements in atomic structure optimization, crystal phase engineering, and heterostructure design improve catalytic performance and mass transport. At the macro scale, innovative techniques in gas bubble management and internal resistance reduction drive further efficiency gains under ampere-level operating conditions. These modifications at the quantum level cascade through meso- and macro-scales, affecting charge transfer, reaction kinetics, and gas evolution management. Unlike conventional approaches that focus solely on one scale-either at the catalyst level (e.g., atomic, or crystal modifications) or at the device level (e.g., porous transport layers design)-combining multiscale optimizations unlocks greater performance improvements. Finally, a perspective on future opportunities for multiscale engineering in PEMWE anode design toward commercial viability is offered.
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Affiliation(s)
- Xiaotong Wu
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Faiza Meharban
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Jingsan Xu
- School of Chemistry and Physics & Centre for Materials Science, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| | - Zian Zhao
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xiangmin Tang
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Lei Tan
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yujie Song
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Weibo Hu
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
| | - Qi Xiao
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Chao Lin
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xiaopeng Li
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yejian Xue
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
| | - Wei Luo
- School of New Energy, Ningbo University of Technology, Ningbo, 315336, China
- State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
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12
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Hu Y, Chao T, Dou Y, Xiong Y, Liu X, Wang D. Isolated Metal Centers Activate Small Molecule Electrooxidation: Mechanisms and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025; 37:e2418504. [PMID: 39865965 DOI: 10.1002/adma.202418504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2024] [Revised: 12/24/2024] [Indexed: 01/28/2025]
Abstract
Electrochemical oxidation of small molecules shows great promise to substitute oxygen evolution reaction (OER) or hydrogen oxidation reaction (HOR) to enhance reaction kinetics and reduce energy consumption, as well as produce high-valued chemicals or serve as fuels. For these oxidation reactions, high-valence metal sites generated at oxidative potentials are typically considered as active sites to trigger the oxidation process of small molecules. Isolated atom site catalysts (IASCs) have been developed as an ideal system to precisely regulate the oxidation state and coordination environment of single-metal centers, and thus optimize their catalytic property. The isolated metal sites in IASCs inherently possess a positive oxidation state, and can be more readily produce homogeneous high-valence active sites under oxidative potentials than their nanoparticle counterparts. Meanwhile, IASCs merely possess the isolated metal centers but lack ensemble metal sites, which can alter the adsorption configurations of small molecules as compared with nanoparticle counterparts, and thus induce various reaction pathways and mechanisms to change product selectivity. More importantly, the construction of isolated metal centers is discovered to limit metal d-electron back donation to CO 2p* orbital and reduce the overly strong adsorption of CO on ensemble metal sites, which resolve the CO poisoning problems in most small molecules electro-oxidation reactions and thus improve catalytic stability. Based on these advantages of IASCs in the fields of electrochemical oxidation of small molecules, this review summarizes recent developments and advancements in IASCs in small molecules electro-oxidation reactions, focusing on anodic HOR in fuel cells and OER in electrolytic cells as well as their alternative reactions, such as formic acid/methanol/ethanol/glycerol/urea/5-hydroxymethylfurfural (HMF) oxidation reactions as key reactions. The catalytic merits of different oxidation reactions and the decoding of structure-activity relationships are specifically discussed to guide the precise design and structural regulation of IASCs from the perspective of a comprehensive reaction mechanism. Finally, future prospects and challenges are put forward, aiming to motivate more application possibilities for diverse functional IASCs.
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Affiliation(s)
- Yanmin Hu
- Center of Advanced Nanocatalysis (CAN), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Tingting Chao
- Institute of Analysis and Testing, Beijing Academy of Science and Technology, Beijing, 100094, P. R. China
| | - Yuhai Dou
- Institute of Energy Materials Science, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Yuli Xiong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, P. R. China
| | - Xiangwen Liu
- Institute of Analysis and Testing, Beijing Academy of Science and Technology, Beijing, 100094, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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13
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Huo M, Sun H, Jin Z, Liu W, Liang Y, Liu J, Liu C, Xing Z, Yang Y, Chang J. Tailoring Octahedron-Tetrahedron Synergism in Spinel Catalysts for Acidic Water Electrolysis. J Am Chem Soc 2025; 147:10678-10689. [PMID: 40017462 DOI: 10.1021/jacs.5c00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2025]
Abstract
The instability issues of oxide-based electrocatalysts during the oxygen evolution reaction (OER) under acidic conditions, caused by the oxidation and dissolution of the catalysts along with the current-capacitance effect, constrain their application in proton exchange membrane water electrolysis (PEMWE). To address these challenges, we tailored the spinel structure of Co3O4 and exploited the synergism between the tetrahedron and octahedron sites by partially substituting Co with Ni and Ru (denoted as NiRuCoOx), respectively. Such a catalyst design creates a Ru-O-Ni electronic coupling effect, facilitating a direct dioxygen radical-coupled OER pathway. Density-functional theory (DFT) calculations and in situ Raman spectroscopy results confirm that Ru is the active site in the diatomic oxygen mechanism while Ni stabilizes lattice oxygen and the Ru-O bonding. The designed NiRuCoOx catalyst exhibits an exceptionally low overpotential of 166 mV to achieve a current density of 10 mA cm-2. Moreover, when serving as the anode in PEMWE, the NiRuCoOx requires 1.72 V to reach a current density of 3A cm-2, meeting the 2026 target set by the U.S. Department of Energy (DOE: 1.8 V@3A cm-2). The PEMWE device can operate stably for more than 1500 h with a significantly reduced performance decay rate of 0.025 mV h-1 compared to commercial RuO2 (2.13 mV h-1). This work provides an efficient method for tailoring the octahedron-tetrahedron sites of spinel Co3O4, which significantly improves the activity and stability of PEMWE.
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Affiliation(s)
- Mengtian Huo
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Hao Sun
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Zhao Jin
- State Key Laboratory of Electroanalytic Chemistry, Jilin Province Key Laboratory of Low Carbon Chemistry Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Wei Liu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Yu Liang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Jingyao Liu
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Changpeng Liu
- State Key Laboratory of Electroanalytic Chemistry, Jilin Province Key Laboratory of Low Carbon Chemistry Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Zihao Xing
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Yang Yang
- NanoScience Technology Center, Department of Materials Science and Engineering, Department of Chemistry, Renewable Energy and Chemical Transformation Cluster, The Stephen W. Hawking Center for Microgravity Research and Education, University of Central Florida, Orlando, Florida 32826, United States
| | - Jinfa Chang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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14
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Zhang F, Hong S, Qiao R, Huang WH, Tang Z, Tang J, Pao CW, Yeh MH, Dai J, Chen Y, Lu J, Hu Z, Gong F, Zhu Y, Wang H. Boosting Alkaline Hydrogen Evolution by Creating Atomic-Scale Pair Cocatalytic Sites in Single-Phase Single-Atom-Ruthenium-Incorporated Cobalt Oxide. ACS NANO 2025; 19:11176-11186. [PMID: 40067939 DOI: 10.1021/acsnano.4c18216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2025]
Abstract
Compared with acidic environments, promoting the water dissociation process is crucial for speeding up hydrogen evolution reaction (HER) kinetics in alkaline electrolyte. Although the construction of heterostructured electrocatalysts by hybridizing noble metals with metal (hydr)oxides has been reported as a feasible approach to achieve high performance, the high cost, complicated fabrication process, and unsatisfactory mass activity limit their large-scale applications. Herein, we report a single-phase HER electrocatalyst composed of single-atom ruthenium (Ru) incorporated into a cobalt oxide spine structure (denoted as Ru SA/Co3O4), which possesses exceptional HER performance in alkaline media via unusual atomic-scale Ru-Co pair sites. In particular, Ru SA/Co3O4 exhibits a very low overpotential of 44 mV at 10 mA cm-2 and an outstanding mass activity of 4700 mA mg-1 at 50 mV overpotential, superior to those of commercial Pt/C, Ru nanoparticles supported on Co3O4 (denoted as Ru NP/Co3O4) and other reported Ru-based electrocatalysts. With insights from theoretical calculations, the synergistic interactions between Ru and Co pair active sites in Ru SA/Co3O4 are revealed to catalyze diverse fundamental steps of the alkaline HER; i.e., the Ru sites can effectively accelerate water adsorption/dissociation and OH- desorption, whereas the Co sites are favorable for H* adsorption and H2 evolution.
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Affiliation(s)
- Feifei Zhang
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Shaohuan Hong
- Key Laboratory of Energy Thermal Conversion and Process Measurement and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Ruixi Qiao
- Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 300092, Taiwan
- Sustainable Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Zheng Tang
- Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jiayi Tang
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM-MECE), Curtin University, Perth, WA 6102, Australia
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 300092, Taiwan
| | - Min-Hsin Yeh
- Sustainable Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Jie Dai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yu Chen
- Monash Centre for Electron Microscopy, Monash University, Clayton, VIC 3800, Australia
| | - Jun Lu
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, Dresden 01187, Germany
| | - Feng Gong
- Key Laboratory of Energy Thermal Conversion and Process Measurement and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Yinlong Zhu
- Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Huanting Wang
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
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15
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Rong C, Huang X, Arandiyan H, Shao Z, Wang Y, Chen Y. Advances in Oxygen Evolution Reaction Electrocatalysts via Direct Oxygen-Oxygen Radical Coupling Pathway. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025; 37:e2416362. [PMID: 39815381 PMCID: PMC11881674 DOI: 10.1002/adma.202416362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2024] [Revised: 12/27/2024] [Indexed: 01/18/2025]
Abstract
Oxygen evolution reaction (OER) is a cornerstone of various electrochemical energy conversion and storage systems, including water splitting, CO2/N2 reduction, reversible fuel cells, and rechargeable metal-air batteries. OER typically proceeds through three primary mechanisms: adsorbate evolution mechanism (AEM), lattice oxygen oxidation mechanism (LOM), and oxide path mechanism (OPM). Unlike AEM and LOM, the OPM proceeds via direct oxygen-oxygen radical coupling that can bypass linear scaling relationships of reaction intermediates in AEM and avoid catalyst structural collapse in LOM, thereby enabling enhanced catalytic activity and stability. Despite its unique advantage, electrocatalysts that can drive OER via OPM remain nascent and are increasingly recognized as critical. This review discusses recent advances in OPM-based OER electrocatalysts. It starts by analyzing three reaction mechanisms that guide the design of electrocatalysts. Then, several types of novel materials, including atomic ensembles, metal oxides, perovskite oxides, and molecular complexes, are highlighted. Afterward, operando characterization techniques used to monitor the dynamic evolution of active sites and reaction intermediates are examined. The review concludes by discussing several research directions to advance OPM-based OER electrocatalysts toward practical applications.
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Affiliation(s)
- Chengli Rong
- School of Chemical and Biomolecular EngineeringThe University of SydneyDarlingtonNew South Wales2006Australia
| | - Xinyi Huang
- School of Chemical and Biomolecular EngineeringThe University of SydneyDarlingtonNew South Wales2006Australia
| | - Hamidreza Arandiyan
- Centre for Advanced Materials and Industrial Chemistry (CAMIC)School of ScienceRMIT UniversityMelbourneVIC3000Australia
| | - Zongping Shao
- WA School of Mines: MineralsEnergy and Chemical EngineeringCurtin UniversityPerthWA6845Australia
| | - Yuan Wang
- Department of Chemical EngineeringThe University of MelbourneParkvilleVIC3010Australia
| | - Yuan Chen
- School of Chemical and Biomolecular EngineeringThe University of SydneyDarlingtonNew South Wales2006Australia
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16
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Chen J, Ma Y, Cheng C, Huang T, Luo R, Xu J, Wang X, Jiang T, Liu H, Liu S, Huang T, Zhang L, Chen W. Cobalt-Doped Ru@RuO 2 Core-Shell Heterostructure for Efficient Acidic Water Oxidation in Low-Ru-Loading Proton Exchange Membrane Water Electrolyzers. J Am Chem Soc 2025. [PMID: 39996499 DOI: 10.1021/jacs.4c18238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2025]
Abstract
Proton exchange membrane water electrolysis (PEMWE) is a highly promising hydrogen production technology for enabling a sustainable energy supply. Herein, we synthesize a single-atom Co-doped core-shell heterostructured Ru@RuO2 (Co-Ru@RuO2) catalyst via a combination of ultrafast pulse-heating and calcination methods as an iridium (Ir)-free and durable oxygen evolution reaction (OER) catalyst in acidic conditions. Co-Ru@RuO2 exhibits a low overpotential of 203 mV and excellent stability over a 400 h durability test at 10 mA cm-2. When implemented in industrial PEMWE devices, a current density of 1 A cm-2 is achieved with only 1.58 V under an extremely low catalyst loading of 0.34 mgRu cm-2, which is decreased by 4 to 6 times as compared to other reported Ru-based catalysts. Even at 500 mA cm-2, the PEMWE device could work stably for more than 200 h. Structural characterizations and density functional theory (DFT) calculations reveal that the single-atom Co doping and the core-shell heterostructure of Ru@RuO2 modulate the electronic structure of pristine RuO2, which reduce the energy barriers of OER and improve the stability of surface Ru. This work provides a unique avenue to guide future developments on low-cost PEMWE devices for hydrogen production.
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Affiliation(s)
- Jinghao Chen
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yirui Ma
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chen Cheng
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, China
| | - Tao Huang
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ruihao Luo
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jingwen Xu
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaoyang Wang
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Taoli Jiang
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hongxu Liu
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shuang Liu
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ting Huang
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Liang Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, China
| | - Wei Chen
- Department of Applied Chemistry School of Chemistry and Materials Science Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
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17
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Liu Y, Wang Y, Li H, Kim MG, Duan Z, Talat K, Lee JY, Wu M, Lee H. Effectiveness of strain and dopants on breaking the activity-stability trade-off of RuO 2 acidic oxygen evolution electrocatalysts. Nat Commun 2025; 16:1717. [PMID: 39962051 PMCID: PMC11832934 DOI: 10.1038/s41467-025-56638-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Accepted: 01/27/2025] [Indexed: 02/20/2025] Open
Abstract
Ruthenium dioxide electrocatalysts for acidic oxygen evolution reaction suffer from mediocre activity and rather instability induced by high ruthenium-oxygen covalency. Here, the tensile strained strontium and tantalum codoped ruthenium dioxide nanocatalysts are synthesized via a molten salt-assisted quenching strategy. The tensile strained spacially elongates the ruthenium-oxygen bond and reduces covalency, thereby inhibiting the lattice oxygen participation and structural decomposition. The synergistic electronic modulations among strontium-tantalum-ruthenium groups both optimize deprotonation on oxygen sites and intermediates absorption on ruthenium sites, lowering the reaction energy barrier. Those result in a well-balanced activity-stability profile, confirmed by comprehensive experimental and theoretical analyses. Our strained electrode demonstrates an overpotential of 166 mV at 10 mA cm-2 in 0.5 M H2SO4 and an order of magnitude higher S-number, indicating comparable stability compared to bare catalyst. It exhibits negligible degradation rates within the long-term operation of single cell and PEM electrolyzer. This study elucidates the effectiveness of tensile strain and strategic doping in enhancing the activity and stability of ruthenium-based catalysts for acidic oxygen evolution reactions.
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Affiliation(s)
- Yang Liu
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Institute of Frontier Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Qingdao, PR China
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea
- Suzhou Research Institute, Shandong University, Suzhou, PR China
| | - Yixuan Wang
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hao Li
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea
| | - Min Gyu Kim
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Ziyang Duan
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Kainat Talat
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jin Yong Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea
| | - Mingbo Wu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, College of New Energy, China University of Petroleum (East China), Qingdao, PR China
| | - Hyoyoung Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea.
- Creative Research Institute, Sungkyunkwan University, Suwon, Republic of Korea.
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Republic of Korea.
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18
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Li Y, Xu J, Lan F, Wang Y, Jiang H, Zhu P, Wu X, Huang Y, Li R, Jiang Q, Zhao Y, Liu R, Zhang L, Zhang R. Atomic-Level Tin Regulation for High-Performance Zinc-Air Batteries. J Am Chem Soc 2025; 147:4833-4843. [PMID: 39883881 DOI: 10.1021/jacs.4c12601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2025]
Abstract
The trade-off between the performances of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) presents a challenge in designing high-performance aqueous rechargeable zinc-air batteries (a-r-ZABs) due to sluggish kinetics and differing reaction requirements. Accurate control of the atomic and electronic structures is crucial for the rational design of efficient bifunctional oxygen electrocatalysts. Herein, we designed a Sn-Co/RuO2 trimetallic oxide utilizing dual-active sites and tin (Sn) regulation strategy by dispersing Co (for ORR) and auxiliary Sn into the near-surface and surface of RuO2 (for OER) to enhance both ORR and OER performances. Both theoretical calculations and advanced dynamic monitoring experiments revealed that the auxiliary Sn effectively regulated the atomic/electronic environment of Ru and Co dual-active sites, which optimized the *OOH/*OH adsorption behavior and promoted the release of the final products, thus breaking the reaction limits. Therefore, the as-designed Sn-Co/RuO2 catalysts exhibited superb bifunctional performance with an oxygen potential difference (ΔE) of 0.628 V and negligible activity degradation after 200,000 (ORR) or 20,000 (OER) CV cycles. The a-r-ZABs based on the Sn-Co/RuO2 catalyst exhibited a higher performance at a wide temperature range of -30 to 65 °C. They demonstrated an ultralong lifespan of 138 days (20,000 cycles) at 5 mA cm-2, 39.7 times higher than that of Pt/C + IrO2 coupled catalysts at a low temperature of -20 °C. Additionally, they maintained an initial power density of 85.8% after long-term tests, significantly outperforming previously reported catalysts. More importantly, the a-r-ZABs also showed excellent stability of 766.45 h (about 4598 cycles) at a high current density of 10 mA cm-2.
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Affiliation(s)
- Yunrui Li
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Ordos Laboratory, Ordos, Inner Mongolia Autonomous Region, 010020, China
| | - Jiaqi Xu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Fan Lan
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yao Wang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Hairong Jiang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ping Zhu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xueke Wu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ya Huang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Run Li
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Qinyuan Jiang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yanlong Zhao
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ruina Liu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Longgui Zhang
- Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Rufan Zhang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Ordos Laboratory, Ordos, Inner Mongolia Autonomous Region, 010020, China
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19
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Zhang W, Zhu C, Wen Y, Wang M, Lu Z, Wang Y. Strontium Doped IrO x Triggers Direct O-O Coupling to Boost Acid Water Oxidation Electrocatalysis. Angew Chem Int Ed Engl 2025; 64:e202418456. [PMID: 39387682 DOI: 10.1002/anie.202418456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2024] [Revised: 10/02/2024] [Accepted: 10/09/2024] [Indexed: 10/15/2024]
Abstract
The discovery of efficient and stable electrocatalysts for the oxygen evolution reaction (OER) in acidic conditions is crucial for the commercialization of proton-exchange membrane water electrolyzers. In this work, we propose a Sr(OH)2-assisted method to fabricate a (200) facet highly exposed strontium-doped IrOx catalyst to provide available adjacent iridium sites with lower Ir-O covalency. This design facilitates direct O-O coupling during the acidic water oxidation process, thereby circumventing the high energy barrier associated with the generation of *OOH intermediates. Benefiting from this advantage, the resulting Sr-IrOx catalyst exhibits an impressive overpotential of 207 mV at a current density of 10 mA cm-2 in 0.5 M H2SO4. Furthermore, a PEMWE device utilizing Sr-IrOx as the anodic catalyst demonstrates a cell voltage of 1.72 V at 1 A cm-2 and maintains excellent stability for over 500 hours. Our work not only provides guidance for the design of improved acidic OER catalysts but also encourages the development of iridium-based electrocatalysts with novel mechanisms for other electrocatalytic reactions.
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Affiliation(s)
- Wuyong Zhang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
| | - Caihan Zhu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
| | - Yingjie Wen
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
| | - Minli Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhiyi Lu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yunan Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology&Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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20
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Priamushko T, Franz E, Logar A, Bijelić L, Guggenberger P, Escalera-López D, Zlatar M, Libuda J, Kleitz F, Hodnik N, Brummel O, Cherevko S. Be Aware of Transient Dissolution Processes in Co 3O 4 Acidic Oxygen Evolution Reaction Electrocatalysts. J Am Chem Soc 2025; 147:3517-3528. [PMID: 39876806 PMCID: PMC11783546 DOI: 10.1021/jacs.4c14952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2024] [Revised: 12/28/2024] [Accepted: 12/30/2024] [Indexed: 01/31/2025]
Abstract
Recently, cobalt-based oxides have received considerable attention as an alternative to expensive and scarce iridium for catalyzing the oxygen evolution reaction (OER) under acidic conditions. Although the reported materials demonstrate promising durability, they are not entirely intact, calling for fundamental research efforts to understand the processes governing the degradation of such catalysts. To this end, this work studies the dissolution mechanism of a model Co3O4 porous catalyst under different electrochemical conditions using online inductively coupled plasma mass spectrometry (online ICP-MS), identical location scanning transmission electron microscopy (IL-STEM), and differential electrochemical mass spectrometry (DEMS). Despite the high thermodynamics tendency reflected in the Pourbaix diagram, it is shown that the cobalt dissolution kinetics is sluggish and can be lowered further by modifying the electrochemical protocol. For the latter, identified in this study, several (electro)chemical reaction pathways that lead to the dissolution of Co3O4 must be considered. Hence, this work uncovers the transient character of cobalt dissolution and provides valuable insights that can help to understand the promising stability of cobalt-based materials in already published works and facilitate the knowledge-driven design of novel, stable, abundant catalysts toward the OER in an acidic environment.
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Affiliation(s)
- Tatiana Priamushko
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, 91058 Erlangen, Germany
| | - Evanie Franz
- Interface
Research and Catalysis, ECRC, Friedrich-Alexander-Universität
Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Anja Logar
- Department
of Materials Chemistry, National Institute
of Chemistry, 1000 Ljubljana, Slovenia
- University
of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
| | - Lazar Bijelić
- Department
of Materials Chemistry, National Institute
of Chemistry, 1000 Ljubljana, Slovenia
- University
of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
| | - Patrick Guggenberger
- Department
of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
- Vienna
Doctoral
School in Chemistry (DoSChem), University
of Vienna, 1090 Vienna, Austria
| | - Daniel Escalera-López
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, 91058 Erlangen, Germany
| | - Matej Zlatar
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, 91058 Erlangen, Germany
| | - Jörg Libuda
- Interface
Research and Catalysis, ECRC, Friedrich-Alexander-Universität
Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Freddy Kleitz
- Department
of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Nejc Hodnik
- Department
of Materials Chemistry, National Institute
of Chemistry, 1000 Ljubljana, Slovenia
- University
of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
| | - Olaf Brummel
- Interface
Research and Catalysis, ECRC, Friedrich-Alexander-Universität
Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Serhiy Cherevko
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, 91058 Erlangen, Germany
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21
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Liu D, Wang Y, Zhu J, Gu X, Yang H, Xiong Y, Shao M, Shao Q. A two-dimensional amorphous iridium-cobalt oxide for an acidic oxygen evolution reaction. Chem Commun (Camb) 2025; 61:2119-2122. [PMID: 39801483 DOI: 10.1039/d4cc05227g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2025]
Abstract
A two-dimensional (2D) amorphous iridium cobalt oxide (Am-IrCoyOx) was prepared using the molten salt method. The optimal catalyst shows a low overpotential of 230 mV at 10 mA cm-2 in 0.5 M H2SO4. DFT calculations show that the unsaturated Ir active sites on the surface are responsible for the excellent electrocatalytic performance. This work exhibits the advantages of 2D oxides and might find potential applications in other fields.
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Affiliation(s)
- Da Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Jiangsu, China.
| | - Yue Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Jiangsu, China.
| | - Jiarui Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
| | - Xuewei Gu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
| | - Hao Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
| | - Yutian Xiong
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Jiangsu, China.
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Jiangsu, China.
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22
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Do VH, Lee JM. Transforming Adsorbate Surface Dynamics in Aqueous Electrocatalysis: Pathways to Unconstrained Performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025:e2417516. [PMID: 39871686 DOI: 10.1002/adma.202417516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2024] [Revised: 01/05/2025] [Indexed: 01/29/2025]
Abstract
Developing highly efficient catalysts to accelerate sluggish electrode reactions is critical for the deployment of sustainable aqueous electrochemical technologies, yet remains a great challenge. Rationally integrating functional components to tailor surface adsorption behaviors and adsorbate dynamics would divert reaction pathways and alleviate energy barriers, eliminating conventional thermodynamic constraints and ultimately optimizing energy flow within electrochemical systems. This approach has, therefore, garnered significant interest, presenting substantial potential for developing highly efficient catalysts that simultaneously enhance activity, selectivity, and stability. The immense promise and rapid evolution of this design strategy, however, do not overshadow the substantial challenges and ambiguities that persist, impeding the realization of significant breakthroughs in electrocatalyst development. This review explores the latest insights into the principles guiding the design of catalytic surfaces that enable favorable adsorbate dynamics within the contexts of hydrogen and oxygen electrochemistry. Innovative approaches for tailoring adsorbate-surface interactions are discussed, delving into underlying principles that govern these dynamics. Additionally, perspectives on the prevailing challenges are presented and future research directions are proposed. By evaluating the core principles and identifying critical research gaps, this review seeks to inspire rational electrocatalyst design, the discovery of novel reaction mechanisms and concepts, and ultimately, advance the large-scale implementation of electroconversion technologies.
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Affiliation(s)
- Viet-Hung Do
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Energy Research Institute @ NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Jong-Min Lee
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Energy Research Institute @ NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
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23
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Cai L, Liu Y, Gao Y, Zhao BH, Guan J, Liu X, Zhang B, Huang Y. Atomically Asymmetrical Ir-O-Co Sites Enable Efficient Chloride-Mediated Ethylene Electrooxidation in Neutral Seawater. Angew Chem Int Ed Engl 2025; 64:e202417092. [PMID: 39449650 DOI: 10.1002/anie.202417092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2024] [Revised: 10/15/2024] [Accepted: 10/25/2024] [Indexed: 10/26/2024]
Abstract
The chloride-mediated ethylene oxidation reaction (EOR) of ethylene chlorohydrin (ECH) via electrocatalysis is practically attractive because of its sustainability and mild reaction conditions. However, the chlorine oxidation reaction (COR), which is essential for the above process, is commonly catalyzed by dimensionally stable anodes (DSAs) with high contents of precious Ru and/or Ir. The development of highly efficient COR electrocatalysts composed of nonprecious metals or decreased amounts of precious metals is highly desirable. Herein, we report a modified Co3O4 with a single-atom Ir substitution (Ir1/Co3O4) as a highly efficient COR electrocatalyst for chloride-mediated EOR to ECH in neutral seawater. Ir1/Co3O4 achieves a Faradaic efficiency (FE) of up to 94.8 % for ECH generation and remarkable stability. Combining experimental results and density functional theory (DFT) calculations, the unique atomically asymmetrical Ir-O-Co configuration with a strong electron coupling effect in Ir1/Co3O4 can accelerate electron transfer to increase the reaction kinetics and maintain the structural stability of Co3O4 during COR. Moreover, a coupling reaction system integrating the anodic chloride-mediated and cathodic H2O2-mediated EOR show a total FE of ~170 % for paired electrosynthesis of ECH and ethylene glycol (EG) using ethylene as the raw material. The technoeconomic analysis highlights the promising application prospects of this system.
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Affiliation(s)
- Linke Cai
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079, China
| | - Yao Liu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Ying Gao
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin, 300072, China
| | - Bo-Hang Zhao
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin, 300072, China
| | - Jiacheng Guan
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079, China
| | - Xiao Liu
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079, China
| | - Bin Zhang
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin, 300072, China
| | - Yi Huang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan, 430079, China
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24
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Hu J, Wang X, Zhou Y, Liu M, Wang C, Li M, Liu H, Li H, Tang Y, Fu G. Asymmetric Rh-O-Co bridge sites enable superior bifunctional catalysis for hydrazine-assisted hydrogen production. Chem Sci 2025; 16:1837-1848. [PMID: 39720143 PMCID: PMC11665155 DOI: 10.1039/d4sc07442d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2024] [Accepted: 12/16/2024] [Indexed: 12/26/2024] Open
Abstract
Hydrazine-assisted water splitting is a promising strategy for energy-efficient hydrogen production, yet challenges remain in developing effective catalysts that can concurrently catalyze both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR) in acidic media. Herein, we report an effective bifunctional catalyst consisting of Rh clusters anchored on Co3O4 branched nanosheets (Rh-Co3O4 BNSs) synthesized via an innovative arginine-induced strategy. The Rh-Co3O4 BNSs exhibit unique Rh-O-Co interfacial sites that facilitate charge redistribution between Rh clusters and the Co3O4 substrate, thereby optimizing their valence electronic structures. When the current density reaches 10 mA cm-2, the Rh-Co3O4 BNSs require working potentials of only 32 mV for the HER and 0.26 V for the HzOR, far surpassing commercial Pt/C. Furthermore, the Rh-Co3O4 BNSs can work efficiently for hydrazine-assisted water electrolysis with a low voltage of 0.34 V at 10 mA cm-2 and excellent stability. Theoretical calculations reveal that the optimized valence electronic structure within interfacial Rh-O-Co sites not only reduces the adsorption energy barrier of Co3O4 for H* in the HER; but also optimizes the hydrazine adsorption in the HzOR and lowers the free energy change in the potential-determining step, where the facilitated dehydrogenation is observed in in situ Raman spectra. This work provides a viable approach for designing efficient bifunctional catalysts for future hydrazine-assisted hydrogen production.
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Affiliation(s)
- Jinrui Hu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Xuan Wang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Yi Zhou
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Meihan Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Caikang Wang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Meng Li
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Heng Liu
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University Sendai 980-8577 Japan
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University Sendai 980-8577 Japan
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Gengtao Fu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
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25
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Wang S, Yao S, Zhang F, Ji K, Ji Y, Li J, Fu W, Liu Y, Yang J, Liu R, Xie J, Yang Z, Yan YM. Quantum Spin Exchange Interactions Trigger O p Band Broadening for Enhanced Aqueous Zinc-Ion Battery Performance. Angew Chem Int Ed Engl 2025; 64:e202415997. [PMID: 39305188 DOI: 10.1002/anie.202415997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Indexed: 11/01/2024]
Abstract
The pressing demand for large-scale energy storage solutions has propelled the development of advanced battery technologies, among which zinc-ion batteries (ZIBs) are prominent due to their resource abundance, high capacity, and safety in aqueous environments. However, the use of manganese oxide cathodes in ZIBs is challenged by their poor electrical conductivity and structural stability, stemming from the intrinsic properties of MnO2 and the destabilizing effects of ion intercalation. To overcome these limitations, our research delves into atomic-level engineering, emphasizing quantum spin exchange interactions (QSEI). These essential for modifying electronic characteristics, can significantly influence material efficiency and functionality. We demonstrate through density functional theory (DFT) calculations that enhanced QSEI in manganese oxides broadens the O p band, narrows the band gap, and optimizes both proton adsorption and electron transport. Empirical evidence is provided through the synthesis of Ru-MnO2 nanosheets, which display a marked increase in energy storage capacity, achieving 314.4 mAh g-1 at 0.2 A g-1 and maintaining high capacity after 2000 cycles. Our findings underscore the potential of QSEI to enhance the performance of TMO cathodes in ZIBs, pointing to new avenues for advancing battery technology.
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Affiliation(s)
- Shiyu Wang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Shuyun Yao
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Feike Zhang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Kang Ji
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Yingjie Ji
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Jingxian Li
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Weijie Fu
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Yuanming Liu
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Jinghua Yang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Ruilong Liu
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, 2052, Sydney, New South Wales, Australia
| | - Zhiyu Yang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
| | - Yi-Ming Yan
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, People's Republic of China
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26
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Park Y, Jang HY, Lee TK, Kim T, Kim D, Kim D, Baik H, Choi J, Kwon T, Yoo SJ, Back S, Lee K. Atomic-level Ru-Ir mixing in rutile-type (RuIr)O 2 for efficient and durable oxygen evolution catalysis. Nat Commun 2025; 16:579. [PMID: 39794326 PMCID: PMC11723980 DOI: 10.1038/s41467-025-55910-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 01/03/2025] [Indexed: 01/13/2025] Open
Abstract
The success of proton exchange membrane water electrolysis (PEMWE) depends on active and robust electrocatalysts to facilitate oxygen evolution reaction (OER). Heteroatom-doped-RuOx has emerged as a promising electrocatalysts because heteroatoms suppress lattice oxygen participation in the OER, thereby preventing the destabilization of surface Ru and catalyst degradation. However, identifying suitable heteroatoms and achieving their atomic-scale coupling with Ru atoms are nontrivial tasks. Herein, to steer the reaction pathway away from the involvement of lattice oxygen, we integrate OER-active Ir atoms into the RuO2 matrix, which maximizes the synergy between stable Ru and active Ir centers, by leveraging the changeable growth behavior of Ru/Ir atoms on lattice parameter-modulated templates. In PEMWE, the resulting (RuIr)O2/C electrocatalysts demonstrate notable current density of 4.96 A cm-2 and mass activity of 19.84 A mgRu+Ir-1 at 2.0 V. In situ spectroscopic analysis and computational calculations highlight the importance of the synergistic coexistence of Ru/Ir-dual-OER-active sites for mitigating Ru dissolution via the optimization of the binding energy with oxygen intermediates and stabilization of Ru sites.
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Affiliation(s)
- Yeji Park
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, Republic of Korea
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Ho Yeon Jang
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea
| | - Tae Kyung Lee
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Department of Chemistry and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Taekyung Kim
- Korea Basic Science Institute (KBSI), Seoul, Republic of Korea
| | - Doyeop Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, Republic of Korea
| | - Dongjin Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, Republic of Korea
| | - Hionsuck Baik
- Korea Basic Science Institute (KBSI), Seoul, Republic of Korea
| | - Jinwon Choi
- Department of Chemistry, Incheon National University, Incheon, Republic of Korea
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, Incheon, Republic of Korea
| | - Taehyun Kwon
- Department of Chemistry, Incheon National University, Incheon, Republic of Korea.
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, Incheon, Republic of Korea.
| | - Sung Jong Yoo
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea.
- Division of Energy & Environment Technology, KIST school, University of Science and Technology (UST), Daejeon, Republic of Korea.
| | - Seoin Back
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea.
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, Republic of Korea.
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27
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Zhao Y, Dongfang N, Huang C, Erni R, Li J, Zhao H, Pan L, Iannuzzi M, Patzke GR. Operando monitoring of the functional role of tetrahedral cobalt centers for the oxygen evolution reaction. Nat Commun 2025; 16:580. [PMID: 39794313 PMCID: PMC11723956 DOI: 10.1038/s41467-025-55857-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Accepted: 12/31/2024] [Indexed: 01/13/2025] Open
Abstract
The complexity of the intrinsic oxygen evolution reaction (OER) mechanism, particularly the precise relationships between the local coordination geometry of active metal centers and the resulting OER kinetics, remains to be fully understood. Herein, we construct a series of 3 d transition metal-incorporated cobalt hydroxide-based nanobox architectures for the OER which contain tetrahedrally coordinated Co(II) centers. Combination of bulk- and surface-sensitive operando spectroelectrochemical approaches reveals that tetrahedral Co(II) centers undergo a dynamic transformation into highly active Co(IV) intermediates acting as the true OER active species which activate lattice oxygen during the OER. Such a dynamic change in the local coordination geometry of Co centers can be further facilitated by partial Fe incorporation. In comparison, the formation of such active Co(IV) species is found to be hindered in CoOOH and Co-FeOOH, which are predominantly containing [CoIIIO6] and [CoII/FeIIIO6] octahedra, respectively, but no mono-μ-oxo-bridged [CoIIO4] moieties. This study offers a comprehensive view of the dynamic role of local coordination geometry of active metal centers in the OER kinetics.
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Affiliation(s)
- Yonggui Zhao
- Department of Chemistry, University of Zurich, Zurich, Switzerland.
| | - Nanchen Dongfang
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Chong Huang
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Rolf Erni
- Electron Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Jingguo Li
- Department of Environmental Science and Engineering, CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, Hefei, China
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Han Zhao
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Long Pan
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, China
| | | | - Greta R Patzke
- Department of Chemistry, University of Zurich, Zurich, Switzerland.
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28
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Huang M, Song L, Wang N, Fu Y, Ren R, Li Z, Lu Y, Xu J, Liu Q. Harnessing 4f Electron Itinerancy for Integrated Dual-Band Redox Systems Boosts Lithium-Oxygen Batteries Electrocatalysis. Angew Chem Int Ed Engl 2025; 64:e202414893. [PMID: 39315603 DOI: 10.1002/anie.202414893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 09/09/2024] [Accepted: 09/23/2024] [Indexed: 09/25/2024]
Abstract
In-depth comprehension and manipulation of band occupation at metal centers are crucial for facilitating effective adsorption and electron transfer in lithium-oxygen battery (LOB) reactions. Rare earth elements play a unique role in band hybridization due to their deep orbitals and strong localization of 4 f electrons. Herein, we anchor single Ce atoms onto CoO, constructing a highly active and stable catalyst with d-f a dual-band redox center. It is discovered that the itinerant behavior of 4 f electrons introduces an enhanced spin-orbit coupling effect, which facilitates ideal σ/π bonding and flexible adsorption between the Ce/Co active sites and *O. Simultaneously, the injection of localized Ce 4 f electrons strengthens the orbital bonding capacity of Co-O, effectively inhibits the dissolution of Co sites and improves the structural stability of the cathode material. Bracingly, the Ce1/CoO-based LOB exhibits an ultra-low charge-discharge polarization (0.46 V) and stable cyclic performance (1088 hours). This work breaks through the traditional limitations in catalyst activity and stability, providing new strategies and theoretical insights for developing high-performance LOBs powered by rare-earth elements.
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Affiliation(s)
- Mengyao Huang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Lina Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Nan Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Yaning Fu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Rongchang Ren
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Zhongjun Li
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Youcai Lu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Jijing Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Qingchao Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P.R. China
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29
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Park W, Chung DY. Activity-Stability Relationships in Oxygen Evolution Reaction. ACS MATERIALS AU 2025; 5:1-10. [PMID: 39802143 PMCID: PMC11718537 DOI: 10.1021/acsmaterialsau.4c00086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 10/28/2024] [Accepted: 11/07/2024] [Indexed: 01/16/2025]
Abstract
The oxygen evolution reaction (OER) is a critical process in various sustainable energy technologies. Despite substantial progress in catalyst development, the practical application of OER catalysts remains hindered by the ongoing challenge of balancing high catalytic activity with long-term stability. We explore the inverse trends often observed between activity and stability, drawing on key insights from both experimental and theoretical studies. Special focus is placed on the performance of different electrodes and their interaction with acidic and alkaline media across a range of electrochemical conditions. This Perspective integrates recent advancements to present a thorough framework for understanding the mechanisms underlying the activity-stability relationship, offering strategies for the rational design of next-generation OER catalysts that successfully meet the dual demands of activity and durability.
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Affiliation(s)
- Wonchul Park
- Department of Chemical and Biomolecular
Engineering, Korea Advanced Institute of
Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong Young Chung
- Department of Chemical and Biomolecular
Engineering, Korea Advanced Institute of
Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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30
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Li W, Zhang L, Ma L, Wang J, Qi R, Pang Y, Xu M, Zhao C, Wang C, Gao M, Lu X. Designing Ru-B-Cr Moieties to Activate the Ru Site for Acidic Water Electrolysis under Industrial-Level Current Density. NANO LETTERS 2025; 25:443-452. [PMID: 39721000 DOI: 10.1021/acs.nanolett.4c05113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2024]
Abstract
Developing highly efficient non-iridium-based active sites for acidic water splitting is still a huge challenge. Herein, unique Ru-B-Cr moieties have been constructed in RuO2 nanofibers (NFs) to activate Ru sites for water electrolysis, which overcomes the bottleneck of RuO2-based catalysts usually possessing low activity for the hydrogen evolution reaction (HER) and poor stability for the oxygen evolution reaction (OER). The fabricated Cr, B-doped RuO2 NFs exhibit low overpotentials of 205 and 379 mV for acidic HER and OER at 1 A cm-2 with outstanding stability lasting 1000 and 188 h, respectively. The assembled acidic electrolyzer also possesses great hydrogen production efficiency and durability at a high current density. Experimental and theoretical explorations reveal that the formation of Ru-B-Cr moieties effectively optimizes the atomic configurations and modulates the adsorption/desorption free energy of reaction intermediates to achieve exceptional HER and OER performance.
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Affiliation(s)
- Weimo Li
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Linfeng Zhang
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Lipo Ma
- School of Life Sciences, Zhuhai College of Science and Technology, 8 Anji East Street, Zhuhai 519040, P. R. China
| | - Jiawei Wang
- Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Jilin Provincial International Joint Research Center of Photo-functional Materials and Chemistry, School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China
| | - Ruikai Qi
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Yang Pang
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Meijiao Xu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Chengji Zhao
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Mingbin Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
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31
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Zhang J, Fu X, Kwon S, Chen K, Liu X, Yang J, Sun H, Wang Y, Uchiyama T, Uchimoto Y, Li S, Li Y, Fan X, Chen G, Xia F, Wu J, Li Y, Yue Q, Qiao L, Su D, Zhou H, Goddard WA, Kang Y. Tantalum-stabilized ruthenium oxide electrocatalysts for industrial water electrolysis. Science 2025; 387:48-55. [PMID: 39745949 DOI: 10.1126/science.ado9938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 08/20/2024] [Accepted: 11/22/2024] [Indexed: 01/04/2025]
Abstract
The iridium oxide (IrO2) catalyst for the oxygen evolution reaction used industrially (in proton exchange membrane water electrolyzers) is scarce and costly. Although ruthenium oxide (RuO2) is a promising alternative, its poor stability has hindered practical application. We used well-defined extended surface models to identify that RuO2 undergoes structure-dependent corrosion that causes Ru dissolution. Tantalum (Ta) doping effectively stabilized RuO2 against such corrosion and enhanced the intrinsic activity of RuO2. In an industrial demonstration, Ta-RuO2 electrocatalyst exhibited stability near that of IrO2 and had a performance decay rate of ~14 microvolts per hour in a 2800-hour test. At current densities of 1 ampere per square centimeter, it had an overpotential 330 millivolts less than that of IrO2.
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Affiliation(s)
- Jiahao Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Xianbiao Fu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Soonho Kwon
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, CA, USA
| | - Kaifeng Chen
- School of Physics, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaozhi Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Jin Yang
- DongFang Boiler Group Co., LTD, Chengdu, China
| | - Haoran Sun
- DongFang Boiler Group Co., LTD, Chengdu, China
| | - Yanchang Wang
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Tomoki Uchiyama
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Yoshiharu Uchimoto
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Shaofeng Li
- Department of Physics, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Yan Li
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA
| | - Xiaolong Fan
- The Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou, China
| | - Gong Chen
- National Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
| | - Fanjie Xia
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China
| | - Jinsong Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China
| | - Yanbo Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Qin Yue
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Liang Qiao
- School of Physics, University of Electronic Science and Technology of China, Chengdu, China
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Hua Zhou
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA
| | - William A Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, CA, USA
| | - Yijin Kang
- School of Chemical Engineering, Sichuan University, Chengdu, China
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32
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Qin Q, Li Z, Zhao X, Zhao H, Zhai L, Gyu Kim M, Cho J, Jang H, Liu S, Liu X. Atomically Dispersed Vanadium-Induced Ru-V Dual Active Sites Enable Exceptional Performance for Acidic Water Oxidation. Angew Chem Int Ed Engl 2025; 64:e202413657. [PMID: 39187433 DOI: 10.1002/anie.202413657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Revised: 08/22/2024] [Accepted: 08/26/2024] [Indexed: 08/28/2024]
Abstract
Regulating the catalytic reaction pathway to essentially break the activity/stability trade-off that limits RuO2 and thus achieves exceptional stability and activity for the acidic oxygen evolution reaction (OER) is important yet challenging. Herein, we propose a novel strategy of incorporating atomically dispersed V species, including O-bridged V dimers and V single atoms, into RuO2 lattices to trigger direct O-O radical coupling to release O2 without the generation of *OOH intermediates. Vn-RuO2 showed high activity with a low overpotential of 227 mV at 10 mA cm-2 and outstanding stability during a 1050 h test in acidic electrolyte. Operando spectroscopic studies and theoretical calculations revealed that compared with the V single atom-doping case, the introduction of the V dimer into RuO2 further decreases the Ru-V atomic distance and weakens the adsorption strength of the *O intermediate to the active V site, which supports the more energetically favorable oxygen radical coupling mechanism (OCM). Furthermore, the highly asymmetric Ru-O-V local structure stabilizes the surface Ru active center by lowering the valence state and increasing the resistance against overoxidation, which result in outstanding stability. This study provides insight into ways of increasing the intrinsic catalytic activity and stability of RuO2 by atomically dispersed species modification.
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Affiliation(s)
- Qing Qin
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Zijian Li
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Xuhao Zhao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Hongyan Zhao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Min Gyu Kim
- Beamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang, 37673, South Korea
| | - Jaephil Cho
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South Korea
| | - Haeseong Jang
- Department of Advanced Materials Engineering, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Korea
| | - Shangguo Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xien Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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33
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Hu W, Huang B, Sun M, Du J, Hai Y, Yin W, Wang X, Gao W, Zhao C, Yue Y, Li Z, Li C. Doping Ti into RuO 2 to Accelerate Bridged-Oxygen-Assisted Deprotonation for Acidic Oxygen Evolution Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025; 37:e2411709. [PMID: 39614718 DOI: 10.1002/adma.202411709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 10/12/2024] [Indexed: 12/01/2024]
Abstract
The development of efficient and durable electrocatalysts for the acidic oxygen evolution reaction (OER) is essential for advancing renewable hydrogen energy technology. However, the slow deprotonation kinetics of oxo-intermediates, involving the four proton-coupled electron steps, hinder the acidic OER progress. Herein, a RuTiOx solid solution electrocatalyst is investigated, which features bridged oxygen (Obri) sites that act as proton acceptors, accelerating the deprotonation of oxo-intermediates. Electrochemical tests, infrared spectroscopy, and density functional theory results reveal that the moderate proton adsorption energy on Obri sites facilitates fast deprotonation kinetics through the adsorbate evolution mechanism. This process effectively prevents the over-oxidation and deactivation of Ru sites caused by the lattice oxygen mechanism. Consequently, RuTiOx shows a low overpotential of 198 mV at 10 mA cm-2 geo and performance exceeding 1400 h at 50 mA cm-2 geo with negligible deactivation. These insights into the OER mechanism and the structure-function relationship are crucial for the advancement of catalytic systems.
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Affiliation(s)
- Wei Hu
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Bolong Huang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 100872, China
| | - Mingzi Sun
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 100872, China
| | - Jing Du
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Yang Hai
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523000, China
| | - Wen Yin
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Xiaomei Wang
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Wensheng Gao
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Chunyang Zhao
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Ya Yue
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Zelong Li
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Can Li
- Key Laboratory of Advanced Catalysis, Gansu province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, Liaoning, 116023, China
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Chen X, Liu M, Ni C, Chen Y, Liu T, Li S, Su H. Modulating the Ruthenium-Cobalt Active Pair with Moderate Spacing for Enhanced Acidic Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025; 21:e2409173. [PMID: 39617997 DOI: 10.1002/smll.202409173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2024] [Revised: 11/20/2024] [Indexed: 01/30/2025]
Abstract
Ruthenium (Ru)-based catalysts have emerged as promising alternatives to Iridium (Ir) catalysts in proton exchange membrane water electrolysis cells due to their lower price and excellent oxygen evolution reaction (OER) activity. However, their stability is compromised by generation of unstable high-valence Ru sites and oxygen vacancy in a lattice oxygen-mediated (LOM) pathway. Here, a low-load Ru site on a Barium (Ba)-doped Co3O4 (RuBaxCo3-xO4) catalyst is developed with abundant Ruthenium─Cobalt (Ru─Co) pairs for enhanced acidic OER activity. The incorporation of Ba can efficiently modulate the lattice of Co3O4, creating Ru─Co active pairs with optimized spacing through compression stress. In situ characterizations exhibit contractive Ru─Co pairs that promote the rapid and direct coupling of *O─O* radicals, bypassing the sluggish *OOH species and avoiding the oxygen vacancies, which can trigger the oxide path mechanism (OPM) for an efficient and stable OER process. As a result, the designed catalyst delivers a low overpotential of 219 mV to achieve a current density of 10 mA cm-2, and also demonstrates excellent stability, maintaining performance over 50 h of continuous operation at a larger current density of 50 mA cm-2. These findings highlight the potential of the RuBaxCo3-xO4 catalysts for durable and efficient OER applications.
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Affiliation(s)
- Xiaoxia Chen
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Meihuan Liu
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha, Hunan, 410083, China
| | - Chudi Ni
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Yiwen Chen
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Tianwen Liu
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Shiyu Li
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Hui Su
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China
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35
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Zhao M, Liang H. Crystal Facet Regulation and Ru Incorporation of Co 3O 4 for Acidic Oxygen Evolution Reaction Electrocatalysis. ACS NANOSCIENCE AU 2024; 4:409-415. [PMID: 39713725 PMCID: PMC11659885 DOI: 10.1021/acsnanoscienceau.4c00037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 09/04/2024] [Accepted: 09/06/2024] [Indexed: 12/24/2024]
Abstract
Acidic oxygen evolution reaction (OER) has long been the bottleneck of proton exchange membrane water electrolysis. Ru- and Ir-based oxides are currently state-of-the-art electrocatalysts for acidic OER, but their high cost limits their widespread application. Co3O4 is a promising alternative, yet the performance requires further improvement. Crystal facet engineering can effectively regulate the kinetics of surface electrochemistry and thus enhance the OER performance. However, the facet-dependent OER activity and corrosion behavior of Co3O4 have not been thoroughly studied. In this study, we systematically investigated the OER performance and crystal facet dependency of Co3O4. The results demonstrate that Co3O4 with mixed {111} and {110} facets exhibits better OER activity and stability than Co3O4 with {111} or {100} facets. The surface Co3+ species are responsible for the high OER activity, but its transformation to CoO2 is also the root cause of the dissolution, leading to an activity-stability trade-off effect. The possible approach to addressing this issue would be to increase the Co3+ contents by nanostructure engineering. To further improve the performance, Ru is introduced to the best-performing Co3O4. The resulting Co3O4/RuO2 heterostructure exhibits an overpotential of 257 mV at 10 mA cm-2 and can stably catalyze the OER for 100 h.
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Affiliation(s)
- Mengting Zhao
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hanfeng Liang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Deng Q, Li H, Pei K, Wong LW, Zheng X, Tsang CS, Chen H, Shen W, Ly TH, Zhao J, Fu Q. Strategic Design for High-Efficiency Oxygen Evolution Reaction (OER) Catalysts by Triggering Lattice Oxygen Oxidation in Cobalt Spinel Oxides. ACS NANO 2024; 18:33718-33728. [PMID: 39605163 DOI: 10.1021/acsnano.4c14158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2024]
Abstract
High-efficiency catalysts with refined electronic structures are highly desirable for promoting the kinetics of the oxygen evolution reaction (OER) and enhancing catalyst durability. This study comprehensively explores strategies involving metal doping and oxygen vacancies for enhancing the acidic OER catalytic activity of Co3O4. Through extensive screening of 3d and 4d transition metals using density functional theory (DFT) simulations, we demonstrate that the incorporation of metal dopants and oxygen vacancies into Co3O4 potentially triggers a transition from the adsorbate evolution mechanism (AEM) to the lattice oxygen oxidation mechanism (LOM) in the oxygen evolution reaction (OER). While the formation of the O-O bond in the intermediate *OOH poses challenges, a significantly reduced overpotential facilitates efficient conversion of O to O2 through the LOM in *OH and lattice oxygen. Additionally, we find that Mn doping can significantly improve the stability of the catalyst. Building upon the rationale above, we employed a dual doping strategy in subsequent experiments to enhance both the activity and stability. Our final design involved the codoping of Mn and Ru in Co3O4, along with an appropriate amount of oxygen vacancies. This catalyst demonstrates a low overpotential (η10 = 230 mV) compared to pure Co3O4 and maintains stable operation for over 120 h, representing a 12-fold increase. By exploring and harnessing the LOM, more efficient, stable, and cost-effective OER catalysts can be designed, providing crucial support for technologies such as water electrolysis in clean energy.
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Affiliation(s)
- Qingming Deng
- Physics Department and Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian 223300, China
| | - Hui Li
- Physics Department and Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian 223300, China
| | - Ke Pei
- Physics Department and Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian 223300, China
| | - Lok Wing Wong
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Xiaodong Zheng
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Chi Shing Tsang
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Honglin Chen
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Wenqian Shen
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Thuc Hue Ly
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518000, China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518000, China
| | - Qiang Fu
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518000, China
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Abdullah MI, Fang Y, Wu X, Hu M, Shao J, Tao Y, Wang H. Tackling activity-stability paradox of reconstructed NiIrO x electrocatalysts by bridged W-O moiety. Nat Commun 2024; 15:10587. [PMID: 39632899 PMCID: PMC11618364 DOI: 10.1038/s41467-024-54987-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 11/23/2024] [Indexed: 12/07/2024] Open
Abstract
One challenge remaining in the development of Ir-based electrocatalyst is the activity-stability paradox during acidic oxygen evolution reaction (OER), especially for the surface reconstructed IrOx catalyst with high efficiency. To address this, a phase selective Ir-based electrocatalyst is constructed by forming bridged W-O moiety in NiIrOx electrocatalyst. Through an electrochemical dealloying process, an nano-porous structure with surface-hydroxylated rutile NiWIrOx electrocatalyst is engineered via Ni as a sacrificial element. Despite low Ir content, NiWIrOx demonstrates a minimal overpotential of 180 mV for the OER at 10 mA·cm-2. It maintains a stable 300 mA·cm-2 current density during an approximately 300 h OER at 1.8 VRHE and shows a stability number of 3.9 × 105 noxygen · nIr-1. The resulting W - O-Ir bridging motif proves pivotal for enhancing the efficacy of OER catalysis by facilitating deprotonation of OER intermediates and promoting a thermodynamically favorable dual-site adsorbent evolution mechanism. Besides, the phase selective insertion of W-O in NiIrOx enabling charge balance through the W-O-Ir bridging motif, effectively counteracting lattice oxygen loss by regulating Ir-O co-valency.
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Affiliation(s)
| | - Yusheng Fang
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xiaobing Wu
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Meiqi Hu
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jing Shao
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Youkun Tao
- School of Science, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Haijiang Wang
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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Liu X, Wang W, Wan L, Hu Y, Xia C, Cao L, Dong B. Partially Amorphous Ru-Doped CoSe Nanoparticles with Optimized Intermediates Adsorption for Highly Efficient Sulfur Oxidation Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2406012. [PMID: 39394916 DOI: 10.1002/smll.202406012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/28/2024] [Indexed: 10/14/2024]
Abstract
The application of thermodynamically more favorable sulfur oxidation reaction (SOR) to replace oxygen evolution reaction (OER) in electrocatalytic water electrolysis is an appealing strategy to achieve low-energy hydrogen production while removing toxic sulfur ions from wastewater. However, the study of SOR catalysts with both activity and stability still faces great challenges. Herein, this study prepares partially amorphous Ru-doped CoSe (pa-Ru-CoSe) nanoparticles for SOR. The doping of Ru keeps Co in an electron-deficient state, which enhances the adsorption of SOR intermediates and improves the catalytic activity. Meanwhile, the partially amorphous selenide possesses great corrosion resistance to sulfur species, thus ensuring stability in long-term SOR. In addition, the pa-Ru-CoSe requires only 0.566 V to reach a current density of 100 mA cm-2 in the SOR-HER coupled system and remains stable for 200 h. This work provides a promising partially amorphous strategy for SOR catalysts with both catalytic activity and long-term stability, enabling hydrogen production with low energy consumption and simultaneous sulfur production.
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Affiliation(s)
- Xinzheng Liu
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
| | - Wenwen Wang
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
| | - Li Wan
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
| | - Yubin Hu
- Institute of Marine Science and Technology, Shandong University, 72 Coastal Highway, Qingdao, 266237, P. R. China
| | - Chenghui Xia
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
| | - Lixin Cao
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
| | - Bohua Dong
- School of Materials Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong Province, 266400, P. R. China
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39
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Liu Y, Fu W, Yao S, Wang S, Ji Y, Li J, Shi L, Wang X, Zhang F, Yang J, Liu R, Xie J, Yang Z, Yan YM. Mn─O Covalency as a Lever for Na⁺ Intercalation Kinetics: The Role of Oxygen Edge-Sharing Co Octahedral Sites in MnO₂. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2407690. [PMID: 39344210 DOI: 10.1002/smll.202407690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2024] [Revised: 09/16/2024] [Indexed: 10/01/2024]
Abstract
The strategic enhancement of manganese-oxygen (Mn─O) covalency is a promising approach to improve the intercalation kinetics of sodium ions (Na⁺) in manganese dioxide (MnO2). In this study, an augmenting Mn─O covalency in MnO2 by strategically incorporating cobalt at oxygen edge-sharing Co octahedral sites is focused on. Both experimental results and density functional theory (DFT) calculations reveal an increased electron polarization from oxygen to manganese, surpassing that directed toward cobalt, thereby facilitating enhanced electron transfer and strengthening covalency. The synthesized Co-MnO2 material exhibits outstanding electrochemical performance, demonstrating a superior specific capacitance of 388 F g-1 at 1 A g-1 and maintaining 97.21% capacity retention after 12000 cycles. Additionally, an asymmetric supercapacitor constructed using Co-MnO2 achieved a high energy density of 35 Wh kg-1 at a power density of 1000 W kg-1, underscoring the efficacy of this material in practical applications. This work highlights the critical role of transition metal-oxygen interactions in optimizing electrode materials and introduces a robust approach to enhance the functional properties of manganese oxides, thereby advancing high-performance energy storage technologies.
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Affiliation(s)
- Yuanming Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Weijie Fu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Shuyun Yao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Shiyu Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yingjie Ji
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jingxian Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Lanlan Shi
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xiaojun Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Feike Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jinghua Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Ruilong Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Zhiyu Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yi-Ming Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
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Zi Y, Zhang C, Zhao J, Cheng Y, Yuan J, Hu J. Research Progress in Structure Evolution and Durability Modulation of Ir- and Ru-Based OER Catalysts under Acidic Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2406657. [PMID: 39370563 DOI: 10.1002/smll.202406657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2024] [Revised: 09/06/2024] [Indexed: 10/08/2024]
Abstract
Green hydrogen energy, as one of the most promising energy carriers, plays a crucial role in addressing energy and environmental issues. Oxygen evolution reaction catalysts, as the key to water electrolysis hydrogen production technology, have been subject to durability constraints, preventing large-scale commercial development. Under the high current density and harsh acid-base electrolyte conditions of the water electrolysis reaction, the active metals in the catalysts are easily converted into high-valent soluble species to dissolve, leading to poor structural durability of the catalysts. There is an urgent need to overcome the durability challenges under acidic conditions and develop electrocatalysts with both high catalytic activity and high durability. In this review, the latest research results are analyzed in depth from both thermodynamic and kinetic perspectives. First, a comprehensive summary of the structural deactivation state process of noble metal oxide catalysts is presented. Second, the evolution of the structure of catalysts possessing high durability is discussed. Finally, four new strategies for the preparation of stable catalysts, "electron buffer (ECB) strategy", combination strength control, strain control, and surface coating, are summarized. The challenges and prospects are also elaborated for the future synthesis of more effective Ru/Ir-based catalysts and boost their future application.
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Affiliation(s)
- Yunhai Zi
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Key Laboratory of Unconventional Metallurgy, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Chengxu Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Jianqiang Zhao
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Key Laboratory of Unconventional Metallurgy, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Ying Cheng
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Key Laboratory of Unconventional Metallurgy, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Jianliang Yuan
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Key Laboratory of Unconventional Metallurgy, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- LuXi KuoBo Precious Metals Co. Ltd., Honghe, 661400, P. R. China
| | - Jue Hu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Key Laboratory of Unconventional Metallurgy, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Southwest United Graduate School, Kunming, 650092, P. R. China
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41
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Jeon SS, Lee W, Jeon H, Lee H. Developing Catalysts for Membrane Electrode Assemblies in High Performance Polymer Electrolyte Membrane Water Electrolyzers. CHEMSUSCHEM 2024; 17:e202301827. [PMID: 38985026 PMCID: PMC11587686 DOI: 10.1002/cssc.202301827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/17/2024] [Accepted: 07/10/2024] [Indexed: 07/11/2024]
Abstract
Extensive research is underway to achieve carbon neutrality through the production of green hydrogen via water electrolysis, powered by renewable energy. Polymer membrane water electrolyzers, such as proton exchange membrane water electrolyzer (PEMWE) and anion exchange membrane water electrolyzer (AEMWE), are at the forefront of this research. Developing highly active and durable electrode catalysts is crucial for commercializing these electrolyzers. However, most research is conducted in half-cell setups, which may not fully represent the catalysts' effectiveness in membrane-electrode-assembly (MEA) devices. This review explores the catalysts developed for high-performance PEMWE and AEMWE MEA systems. Only the catalysts reporting on the MEA performance were discussed in this review. In PEMWE, strategies aim to minimize Ir use for the oxygen evolution reaction (OER) by maximizing activity, employing metal oxide-based supports, integrating secondary elements into IrOx lattices, or exploring non-Ir materials. For AEMWE, the emphasis is on enhancing the performance of NiFe-based and Co-based catalysts by improving electrical conductivity and mass transport. Pt-based and Ni-based catalysts for the hydrogen evolution reaction (HER) in AEMWE are also examined. Additionally, this review discusses the unique considerations for catalysts operating in pure water within AEMWE systems.
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Affiliation(s)
- Sun Seo Jeon
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
| | - Wonjae Lee
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
| | - Hyeseong Jeon
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
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42
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Cao X, Qin H, Zhang J, Chen X, Jiao L. Regulation of Oxide Pathway Mechanism for Sustainable Acidic Water Oxidation. J Am Chem Soc 2024; 146:32049-32058. [PMID: 39529602 DOI: 10.1021/jacs.4c12942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2024]
Abstract
The advancement of acid-stable oxygen evolution reaction (OER) electrocatalysts is crucial for efficient hydrogen production through proton exchange membrane (PEM) water electrolysis. Unfortunately, the activity of electrocatalysts is constrained by a linear scaling relationship in the adsorbed evolution mechanism, while the lattice-oxygen-mediated mechanism undermines stability. Here, we propose a heterogeneous dual-site oxide pathway mechanism (OPM) that avoids these limitations through direct dioxygen radical coupling. A combination of Lewis acid (Cr) and Ru to form solid solution oxides (CrxRu1-xO2) promotes OH adsorption and shortens the dual-site distance, which facilitates the formation of *O radical and promotes the coupling of dioxygen radical, thereby altering the OER mechanism to a Cr-Ru dual-site OPM. The Cr0.6Ru0.4O2 catalyst demonstrates a lower overpotential than that of RuO2 and maintains stable operation for over 350 h in a PEM water electrolyzer at 300 mA cm-2. This mechanism regulation strategy paves the way for an optimal catalytic pathway, essential for large-scale green hydrogen production.
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Affiliation(s)
- Xuejie Cao
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education State Key Laboratory of Advanced Chemical Power Sources Collaborative Innovation Center of Chemical Science and Engineering, TianjinCollege of Chemistry, Nankai University, Tianjin 300071, China
| | - Hongye Qin
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education State Key Laboratory of Advanced Chemical Power Sources Collaborative Innovation Center of Chemical Science and Engineering, TianjinCollege of Chemistry, Nankai University, Tianjin 300071, China
| | - Jinyang Zhang
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education State Key Laboratory of Advanced Chemical Power Sources Collaborative Innovation Center of Chemical Science and Engineering, TianjinCollege of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaojie Chen
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education State Key Laboratory of Advanced Chemical Power Sources Collaborative Innovation Center of Chemical Science and Engineering, TianjinCollege of Chemistry, Nankai University, Tianjin 300071, China
| | - Lifang Jiao
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education State Key Laboratory of Advanced Chemical Power Sources Collaborative Innovation Center of Chemical Science and Engineering, TianjinCollege of Chemistry, Nankai University, Tianjin 300071, China
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Zuo S, Wu ZP, Xu D, Ahmad R, Zheng L, Zhang J, Zhao L, Huang W, Al Qahtani H, Han Y, Cavallo L, Zhang H. Local compressive strain-induced anti-corrosion over isolated Ru-decorated Co 3O 4 for efficient acidic oxygen evolution. Nat Commun 2024; 15:9514. [PMID: 39496587 PMCID: PMC11535344 DOI: 10.1038/s41467-024-53763-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 10/23/2024] [Indexed: 11/06/2024] Open
Abstract
Enhancing corrosion resistance is essential for developing efficient electrocatalysts for acidic oxygen evolution reaction (OER). Herein, we report the strategic manipulation of the local compressive strain to reinforce the anti-corrosion properties of the non-precious Co3O4 support. The incorporation of Ru single atoms, larger in atomic size than Co, into the Co3O4 lattice (Ru-Co3O4), triggers localized strain compression and lattice distortion on the Co-O lattice. A comprehensive exploration of the correlation between this specific local compressive strain and electrocatalytic performance is conducted through experimental and theoretical analyses. The presence of the localized strain in Ru-Co3O4 is confirmed by operando X-ray absorption studies and supported by quantum calculations. This local strain, presented in a shortened Co-O bond length, enhances the anti-corrosion properties of Co3O4 by suppressing metal dissolutions. Consequently, Ru-Co3O4 shows satisfactory stability, maintaining OER for over 400 hours at 30 mA cm-2 with minimal decay. This study demonstrates the potential of the local strain effect in fortifying catalyst stability for acidic OER and beyond.
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Affiliation(s)
- Shouwei Zuo
- Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Zhi-Peng Wu
- Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Deting Xu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellent in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Rafia Ahmad
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jing Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Lina Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellent in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Wenhuan Huang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, People's Republic of China
| | | | - Yu Han
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
- Center for Electron Microscopy, South China University of Technology, Guangzhou, China
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
| | - Huabin Zhang
- Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia.
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
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Yu CW, Chen ZQ, Xu HY, Ouyang T, Liu ZQ. Construction of Surface Ru oct─O─Co oct Units With Optimized Co oct Spin States for Enhanced Oxygen Reduction and Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2405865. [PMID: 39180457 DOI: 10.1002/smll.202405865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 08/13/2024] [Indexed: 08/26/2024]
Abstract
The introduction of noble metal into spinel structure is an effective strategy to develop efficient oxygen evolution/reduction reaction (OER/ORR) catalysts. Herein, surface Cooct is substituted by Ruoct in Rux-Mn0.5Co2.5-xO4/NCNTs by ion-exchange, where presence of Ruoct─O─Cooct unit facilitates electron transfer. This strong electron coupling effect leads downward shift in d-band center and a narrowing of d-p bandgap. The increased charge density of Cooct bridged with Ruoct dioxygen optimizes adsorption of oxygen intermediates (*OH) and occupation of electrons in eg-orbital octahedral. The measured ORR/OER voltage difference is only 0.71 V. The peak power density of assembled zinc-air battery reaches 148.8 mW h cm-2, and energy density at 100 mA cm-2 reaches 813.6 mA h gZn -1, approaching a theoretical value of 820 mA h gZn -1. The catalyst demonstrates stable operation for over 500 h at 10 mA cm-2 and over 200 h at 50 mA cm-2. This work provides new insights to guide fabrication of advanced oxygen electrocatalysts.
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Affiliation(s)
- Can-Wen Yu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Higher Education Mega Center, Guangzhou University, No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Zi-Qiang Chen
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Higher Education Mega Center, Guangzhou University, No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Hong-Yi Xu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Higher Education Mega Center, Guangzhou University, No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Ting Ouyang
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Higher Education Mega Center, Guangzhou University, No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Higher Education Mega Center, Guangzhou University, No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
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45
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Yin ZH, Liu H, Hu JS, Wang JJ. The breakthrough of oxide pathway mechanism in stability and scaling relationship for water oxidation. Natl Sci Rev 2024; 11:nwae362. [PMID: 39588208 PMCID: PMC11587812 DOI: 10.1093/nsr/nwae362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 09/02/2024] [Accepted: 09/17/2024] [Indexed: 11/27/2024] Open
Abstract
An in-depth understanding of electrocatalytic mechanisms is essential for advancing electrocatalysts for the oxygen evolution reaction (OER). The emerging oxide pathway mechanism (OPM) streamlines direct O-O radical coupling, circumventing the formation of oxygen vacancy defects featured in the lattice oxygen mechanism (LOM) and bypassing additional reaction intermediates (*OOH) inherent to the adsorbate evolution mechanism (AEM). With only *O and *OH as intermediates, OPM-driven electrocatalysts stand out for their ability to disrupt traditional scaling relationships while ensuring stability. This review compiles the latest significant advances in OPM-based electrocatalysis, detailing design principles, synthetic methods, and sophisticated techniques to identify active sites and pathways. We conclude with prospective challenges and opportunities for OPM-driven electrocatalysts, aiming to advance the field into a new era by overcoming traditional constraints.
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Affiliation(s)
- Zhao-Hua Yin
- State Key Laboratory of Crystal Materials, School of Cystal Materials, Shandong University, Jinan 250100, China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, School of Cystal Materials, Shandong University, Jinan 250100, China
| | - Jin-Song Hu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, China
| | - Jian-Jun Wang
- State Key Laboratory of Crystal Materials, School of Cystal Materials, Shandong University, Jinan 250100, China
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46
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Mao L, Liu J, Lin R, Xue J, Yang Y, Xu S, Li Q, Qian J. Tailoring the Compositions and Nanostructures of Trimetallic Prussian Blue Analog-Derived Carbides for Water Oxidation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402916. [PMID: 39226210 PMCID: PMC11558108 DOI: 10.1002/advs.202402916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/01/2024] [Indexed: 09/05/2024]
Abstract
The electrochemical splitting of water for hydrogen production faces a major challenge due to its anodic oxygen evolution reaction (OER), necessitating research on the rational design and facile synthesis of OER catalysts to enhance catalytic activity and stability. This study proposes a ligand-induced MOF-on-MOF approach to fabricate various trimetallic MnFeCo-based Prussian blue analog (PBA) nanostructures. The addition of [Fe(CN)6]3- transforms them from cuboids with protruding corners (MnFeCoPBA-I) to core-shell configurations (MnFeCoPBA-II), and finally to hollow structures (MnFeCoPBA-III). After pyrolysis at 800 °C, they are converted into corresponding PBA-derived carbon nanomaterials, featuring uniformly dispersed Mn2Co2C nanoparticles. A comparative analysis demonstrates that the Fe addition enhances catalytic activity, while Mn-doped materials exhibit excellent stability. Specifically, the optimized MnFeCoNC-I-800 demonstrates outstanding OER performance in 1.0 m KOH solution, with an overpotential of 318 mV at 10 mA cm-2, maintaining stability for up to 150 h. Theoretical calculations elucidate synergistic interactions between Fe dopants and the Mn2Co2C matrix, reducing barriers for oxygen intermediates and improving intrinsic OER activity. These findings offer valuable insights into the structure-morphology relationships of MOF precursors, advancing the development of highly active and stable MOF-derived OER catalysts for practical applications.
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Affiliation(s)
- Lujiao Mao
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Jie Liu
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Rong Lin
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Jinhang Xue
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Yuandong Yang
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Shaojie Xu
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
| | - Qipeng Li
- College of Chemistry and Chemical EngineeringZhaotong UniversityZhaotongYunnan657000P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiang325035P. R. China
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47
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Liu W, Long G, Xiang Z, Ren T, Piao J, Wan K, Fu Z, Liang Z. Extremely Active and Robust Ir-Mn Dual-Atom Electrocatalyst for Oxygen Evolution Reaction by Oxygen-Oxygen Radical Coupling Mechanism. Angew Chem Int Ed Engl 2024; 63:e202411014. [PMID: 39034426 DOI: 10.1002/anie.202411014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Accepted: 07/21/2024] [Indexed: 07/23/2024]
Abstract
A novel Ir-Mn dual-atom electrocatalyst is synthesized by a facile ion-exchange method by incorporating Ir in SrMnO3, which yields an extremely high activity and stability for the oxygen evolution reaction (OER). The ion exchange process occurs in a self-limitation way, which favors the formation of Ir-Mn dual-atom in the IrMnO9 unit. The incorporation of Ir modulates the electronic structure of both Ir and Mn, thereby resulting in a shorter distance of the Ir-Mn dual-atom (2.41 Å) than the Mn-Mn dual-atom (2.49 Å). The modulated Ir-Mn dual-atom enables the same spin direction O (↑) of the adsorbed *O intermediates, thus facilitating the direct coupling of the two adsorbed *O intermediates to release O2 via the oxygen-oxygen radical coupling mechanism. Electrochemical tests reveal that the Ir-SrMnO3 exhibits a superior OER's activity with a low overpotential of 207 mV at 10 mA cm-2 and achieves a mass specific activity of 1100 A gIr -1 at 1.5 V. The proton-exchange-membrane water electrolyzer with the Ir-SrMnO3 catalyst exhibits a low electrolysis voltage of 1.63 V at 1.0 A cm-2 and a stable 2000-h operation with a decay of only 15 μV h-1 at 0.5 A cm-2.
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Affiliation(s)
- Wenbo Liu
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Guifa Long
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, 530008, Nanning, P. R. China
| | - Zhipeng Xiang
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Tianlu Ren
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Jinhua Piao
- School of Food Science and Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Kai Wan
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Zhiyong Fu
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
| | - Zhenxing Liang
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, 510641, Guangzhou, P. R. China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 510641, Guangzhou, China
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering, Jieyang Center, 522000, Jieyang, Guangdong, China
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48
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Zhang D, Wu Q, Wu L, Cheng L, Huang K, Chen J, Yao X. Optimal Electrocatalyst Design Strategies for Acidic Oxygen Evolution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401975. [PMID: 39120481 PMCID: PMC11481214 DOI: 10.1002/advs.202401975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/18/2024] [Indexed: 08/10/2024]
Abstract
Hydrogen, a clean resource with high energy density, is one of the most promising alternatives to fossil. Proton exchange membrane water electrolyzers are beneficial for hydrogen production because of their high current density, facile operation, and high gas purity. However, the large-scale application of electrochemical water splitting to acidic electrolytes is severely limited by the sluggish kinetics of the anodic reaction and the inadequate development of corrosion- and highly oxidation-resistant anode catalysts. Therefore, anode catalysts with excellent performance and long-term durability must be developed for anodic oxygen evolution reactions (OER) in acidic media. This review comprehensively outlines three commonly employed strategies, namely, defect, phase, and structure engineering, to address the challenges within the acidic OER, while also identifying their existing limitations. Accordingly, the correlation between material design strategies and catalytic performance is discussed in terms of their contribution to high activity and long-term stability. In addition, various nanostructures that can effectively enhance the catalyst performance at the mesoscale are summarized from the perspective of engineering technology, thus providing suitable strategies for catalyst design that satisfy industrial requirements. Finally, the challenges and future outlook in the area of acidic OER are presented.
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Affiliation(s)
- Dongdong Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Qilong Wu
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials ScienceAustralian Institute for Innovative MaterialsUniversity of WollongongWollongongNSW2500Australia
| | - Liyun Wu
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Lina Cheng
- Institute for Green Chemistry and Molecular EngineeringSun Yat‐Sen UniversityGuangzhouGuangdong510275P. R. China
| | - Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Jun Chen
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials ScienceAustralian Institute for Innovative MaterialsUniversity of WollongongWollongongNSW2500Australia
| | - Xiangdong Yao
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
- School of Advanced Energy and IGCMEShenzhen CampusSun Yat‐Sen University (SYSU)ShenzhenGuangdong518100P. R. China
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49
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Lin HY, Yang QQ, Lin MY, Xu HG, Tang X, Fu HQ, Wu H, Zhu M, Zhou L, Yuan HY, Dai S, Liu PF, Yang HG. Enriched Oxygen Coverage Localized within Ir Atomic Grids for Enhanced Oxygen Evolution Electrocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2408045. [PMID: 39177118 DOI: 10.1002/adma.202408045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 08/13/2024] [Indexed: 08/24/2024]
Abstract
Inefficient active site utilization of oxygen evolution reaction (OER) catalysts have limited the energy efficiency of proton exchange membrane (PEM) water electrolysis. Here, an atomic grid structure is demonstrated composed of high-density Ir sites (≈10 atoms per nm2) on reactive MnO2-x support which mediates oxygen coverage-enhanced OER process. Experimental characterizations verify the low-valent Mn species with decreased oxygen coordination in MnO2-x exert a pivotal impact in the enriched oxygen coverage on the surface during OER process, and the distributed Ir atomic grids, where highly electrophilic Ir─O(II-δ)- bonds proceed rapidly, render intense nucleophilic attack of oxygen radicals. Thereby, this metal-support cooperation achieves ultra-low overpotentials of 166 mV at 10 mA cm-2 and 283 mV at 500 mA cm-2, together with a striking mass activity which is 380 times higher than commercial IrO2 at 1.53 V. Moreover, its high OER performance also markedly surpasses the commercial Ir black catalyst in PEM electrolyzers with long-term stability.
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Affiliation(s)
- Hao Yang Lin
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Qian Qian Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Miao Yu Lin
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hao Guan Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Huai Qin Fu
- Centre for Catalysis and Clean Energy, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Haoran Wu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Minghui Zhu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lihui Zhou
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hai Yang Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Peng Fei Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hua Gui Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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50
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Xia X, Xu J, Yu X, Yang J, Li AZ, Ji K, Li L, Ma M, Shao Q, Ge R, Duan H. Electro-oxidation of 5-hydroxymethylfurfural in a low-concentrated alkaline electrolyte by enhancing hydroxyl adsorption over a single-atom supported catalyst. Sci Bull (Beijing) 2024; 69:2870-2880. [PMID: 38942696 DOI: 10.1016/j.scib.2024.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/08/2024] [Accepted: 06/07/2024] [Indexed: 06/30/2024]
Abstract
Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), a sustainable strategy to produce bio-based plastic monomer, is always conducted in a high-concentration alkaline solution (1.0 mol L-1 KOH) for high activity. However, such high concentration of alkali poses challenges including HMF degradation and high operation costs associated with product separation. Herein, we report a single-atom-ruthenium supported on Co3O4 (Ru1-Co3O4) as a catalyst that works efficiently in a low-concentration alkaline electrolyte (0.1 mol L-1 KOH), exhibiting a low potential of 1.191 V versus a reversible hydrogen electrode to achieve 10 mA cm-2 in 0.1 mol L-1 KOH, which outperforms previous catalysts. Electrochemical studies demonstrate that single-atom-Ru significantly enhances hydroxyl (OH-) adsorption with insufficient OH- supply, thus improving HMF oxidation. To showcase the potential of Ru1-Co3O4 catalyst, we demonstrate its high efficiency in a flow reactor under industrially relevant conditions. Eventually, techno-economic analysis shows that substitution of the conventional 1.0 mol L-1 KOH with 0.1 mol L-1 KOH electrolyte may significantly reduce the minimum selling price of FDCA by 21.0%. This work demonstrates an efficient catalyst design for electrooxidation of biomass working without using strong alkaline electrolyte that may contribute to more economic biomass electro-valorization.
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Affiliation(s)
- Xiaoxia Xia
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jingyi Xu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xinru Yu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jing Yang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - An-Zhen Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Kaiyue Ji
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Lei Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Min Ma
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qian Shao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Ruixiang Ge
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
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