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Kale VN, Maiyalagan T. Selenium-enriched hollow NiCo 2O 4/NiO heterostructured nanocages as an efficient electrocatalyst for oxygen evolution reaction. NANOSCALE 2024. [PMID: 38758098 DOI: 10.1039/d4nr01144a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Finding clean, sustainable, and environmentally friendly technologies is especially crucial in addressing both energy and environmental challenges. To accelerate the oxygen evolution reaction (OER) and to overcome the obstacle of high energy consumption, exploring high-performance electrocatalysts is imperative to maximize the practical applicability of water splitting. Developing electrocatalyst through strategic surface modifications represents a significant approach for the construction of active catalytic centers. In the present work, we successfully synthesized selenium-incorporated hollow NiCo2O4/NiO heterostructured nanocages as electrocatalysts for the OER by precisely controlling the structure and composition of the material. The findings demonstrated that the surface-reconstructed hollow 5 wt% Se-NiCo2O4/NiO heterostructured nanocages resulted in an increased number of active sites through interfacial engineering. Benefiting from the structural control, mass transport was further expedited and due to increased conductivity, accelerated the charge transfer processes within the system. The electrocatalyst exhibited remarkable activity for the OER and displayed a low overpotential (η = 288 mV) at a current density (j) of 10 mA cm-2, small Tafel slope (66.7 mV dec-1) and better stability. This work offers a viable and adaptable method for fabricating a range of functional coordinated MOF compounds that are capable of utilization across diverse energy applications, including storage, conversion and environmental purposes.
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Affiliation(s)
- Vaibhav Namdev Kale
- Electrochemical Energy Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India.
| | - T Maiyalagan
- Electrochemical Energy Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India.
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2
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Zhang X, Xu H, Shi Q, Sun W, Han X, Jiang D, Cao Y, He D, Cui X. Interfacial engineering layered bimetallic oxyhydroxides for efficient oxygen evolution reaction. J Colloid Interface Sci 2024; 670:142-151. [PMID: 38761567 DOI: 10.1016/j.jcis.2024.05.085] [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: 03/25/2024] [Revised: 05/06/2024] [Accepted: 05/14/2024] [Indexed: 05/20/2024]
Abstract
Transition metal-based oxyhydroxides (MOOH) have garnered significant attention as promising catalyst for the Oxygen Evolution Reaction (OER). However, the direct synthesis of MOOH poses challenges due to the instability of trivalent cobalt and nickel salts, attrivuted to their high oxidation states. In this study, theoretical computations predicted that Co(OH)2 nanosheets are exclusively formed on carbon structures, owing to the stronger binding energy between CoOOH and CC compared to Co(OH)2. Furthermore, the presence of FeOOH interface reduces the binding energy between CoOOH and carbon structure. Experiment evidence confirms that CoOOH can be directly synthesized through controlled epitaxial growth on an FeOOH interface using a hydrothermal method. Moreover, the in-situ doping of iron leads to the formation of high-quality Fe0.35Co0.65OOH with exceptional OER performance, displaying a low overpotential of 240 mV at 10 mA cm-2 and a small Tafel slope of 43 mV dec-1. Density functional theory (DFT) calculations uncover the substantial enhancement of oxygen-containing species adsorption abilities by Fe0.35Co0.65OOH, resulting in improved OER activity. This work presents a promising strategy for the efficient preparation of layered cobalt oxyhydroxides, enabling efficient energy conversion and storage.
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Affiliation(s)
- Xiaolin Zhang
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China
| | - Huanjun Xu
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China
| | - Qiang Shi
- China Coal Energy Company Limited Hainan Branch, Haikou 570100, China
| | - Wei Sun
- Hainan Engineering Research Center of Tropical Ocean Advanced Optoelectronic Functional Materials, Hainan International Joint Research Center of Marine Advanced Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xu Han
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China
| | - Dan Jiang
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China
| | - Yang Cao
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China
| | - Danfeng He
- College of Science, Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China.
| | - Xiaoqiang Cui
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science and Key Laboratory of Automobile Materials of MOE, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
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3
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Li A, Song D, Cao R, Wang F, Yan H, Chen H. In situ reconstruction of self-supported NiFeP electrodes for overall water splitting at large current density. Chem Commun (Camb) 2024; 60:3838-3841. [PMID: 38497308 DOI: 10.1039/d4cc00175c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
In this study, self-supported NiFeP was fabricated on Ni mesh (NiFeP/NM) via a two-step monopulse electrodeposition and phosphorization strategy. The NiFeP/NM exhibited excellent activity through electrochemical surface reconstruction to generate true active sites, requiring low overpotentials of 349 mV and 310 mV to reach a current density of 500 mA cm-2 for the HER and OER, respectively, and exhibiting satisfactory stability in 6 M NaOH.
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Affiliation(s)
- Ang Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Chemical Power Sources, Chongqing University, Chongqing, China.
| | - Dongcai Song
- College of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Chemical Power Sources, Chongqing University, Chongqing, China.
| | - Runjie Cao
- College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Fangzheng Wang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Chemical Power Sources, Chongqing University, Chongqing, China.
| | - Hua Yan
- College of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Chemical Power Sources, Chongqing University, Chongqing, China.
| | - Hongmei Chen
- College of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Chemical Power Sources, Chongqing University, Chongqing, China.
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Fan Y, Zhang J, Han J, Zhang M, Bao W, Su H, Wang N, Zhang P, Luo Z. In situ self-reconstructed hierarchical bimetallic oxyhydroxide nanosheets of metallic sulfides for high-efficiency electrochemical water splitting. MATERIALS HORIZONS 2024; 11:1797-1807. [PMID: 38318724 DOI: 10.1039/d3mh02090h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The advancement of economically efficient electrocatalysts for alkaline water oxidation based on transition metals is essential for hydrogen production through water electrolysis. In this investigation, a straightforward one-step solvent method was utilized to spontaneously cultivate bimetallic sulfide S-FeCo1 : 1/NIF on the surface of a nickel-iron foam (NIF). Capitalizing on the synergistic impact between the bimetallic constituents and the highly active species formed through electrochemical restructuring, S-FeCo1 : 1/NIF exhibited remarkable oxygen evolution reaction (OER) performance, requiring only a 310 mV overpotential based on 500 mA cm-2 current density. Furthermore, it exhibited stable operation at 200 mA cm-2 for 275 h. Simultaneously, the catalyst demonstrated excellent hydrogen evolution reaction (HER) and overall water-splitting capabilities. It only requires an overpotential of 191 mV and a potential of 1.81 V to drive current densities of 100 and 50 mA cm-2. Density functional theory (DFT) calculations were also employed to validate the impact of the bimetallic synergistic effect on the catalytic activity of sulfides. The results indicate that the coupling between bimetallic components effectively reduces the energy barrier required for the rate-determining step in water oxidation, enhancing the stability and activity of bimetallic sulfides. The exploration of bimetallic coupling to improve the OER performance holds theoretical significance in the rational design of advanced electrocatalysts.
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Affiliation(s)
- Yaning Fan
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, China.
| | - Junjun Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, China.
| | - Jie Han
- National & Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, School of Material Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, 723000, P. R. China.
| | - Mengyuan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Weiwei Bao
- National & Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, School of Material Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, 723000, P. R. China.
| | - Hui Su
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montreal, QC H3A 0B8, Canada
| | - Nailiang Wang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, China.
| | - Pengfei Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, China.
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Zhenghong Luo
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, China.
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
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5
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Gao H, Chai J, Jin C, Tian M. Molecularly imprinted electrochemical sensor based on CoNi-MOF/RGO nanocomposites for sensitive detection of the hippuric acid. Anal Chim Acta 2024; 1296:342307. [PMID: 38401927 DOI: 10.1016/j.aca.2024.342307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/17/2024] [Accepted: 01/29/2024] [Indexed: 02/26/2024]
Abstract
Toluene, a volatile organic compound, may have adverse effects on the nervous and digestive system when inhaled over an extended period. The assessment of environmental toluene exposure can be effectively conducted by detecting hippuric acid (HA), a toluene metabolite. In this investigation, a molecularly imprinted electrochemical sensor was developed for HA detection, utilizing the synergistic effects of reduced graphene oxide (RGO) and a bimetallic organic skeleton known as CoNi-MOF. Initially, graphene oxide (GO) was synthesized using a modified Hummers' method, and RGO with better conductivity was achieved through reduction with ascorbic acid (AA). Subsequently, CoNi-MOF was introduced to enhance the material's electron transport capabilities further. The molecularly imprinted membrane was then prepared via electropolymerization to enable selective HA recognition. Under optimal conditions, the synthesized sensor exhibited accurate HA detection within a concentration range of 2-800 nM, with a detection limit of 0.97 nM. The sensor's selectivity was assessed using a selectivity coefficient, yielding an imprinting factor of 6.53. The method was successfully applied to the quantification of HA in urine, demonstrating a favorable recovery rate of 93.4%-103.9%. In conclusion, this study presents a practical platform for the detection of human metabolite detection.
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Affiliation(s)
- Haifeng Gao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, PR China
| | - Jinyue Chai
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, PR China
| | - Chengcheng Jin
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, PR China
| | - Miaomiao Tian
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, PR China.
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Gao M, Huang Z, Wang L, Li H, Ruan C, Sadeq R, Taylor Isimjan T, Yang X. Synergistic Co-N/V-N dual sites in N-doped Co 3V 2O 8 nanosheets: pioneering high-efficiency bifunctional electrolysis for high-current water splitting. J Colloid Interface Sci 2024; 658:739-747. [PMID: 38142624 DOI: 10.1016/j.jcis.2023.12.064] [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: 09/21/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/26/2023]
Abstract
Developing affluent dual-metal active sites bifunctional electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential to achieve large-scale water electrolysis, whereas still remains challenging. Herein, a novel nitrogen-doped cobalt-vanadium oxide with abundant Co-N and V-N dual active sites supported on nickel foam (N-Co3V2O8@NF) is constructed by a controllable impregnation-thermal nitridation strategy. The staggered nanosheet structure ensures optimal exposure of active sites. More importantly, N doping effectively regulates the electronic structure of the metal centers and induces the formation of Co-N and V-N dual active sites, which is conducive to improving the conductivity and hydrophilicity, thus synergistically enhancing the electrocatalytic efficiency. Consequently, the optimized N-Co3V2O8@NF exhibits prominent HER (63 mV@10 mA cm-2) and OER (256 mV@10 mA cm-2) activities, surpassing most contemporary bifunctional electrocatalysts. In practical application, the assembled N-Co3V2O8@NF(+/-) electrolyzer consistently achieved ultra-low cell voltages of 1.97 and 2.03 V at 500 and 1000 mA cm-2, respectively, superior to the benchmark RuO2@NF(+) || Pt/C@NF(-) and showcasing robust durability. This paves the way for its prospective adoption in industrial water electrolysis applications.
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Affiliation(s)
- Mingcheng Gao
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhiyang Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Lixia Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Huatong Li
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Changping Ruan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Raeid Sadeq
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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7
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Chen L, Yu C, Song X, Dong J, Han Y, Huang H, Zhu X, Xie Y, Qiu J. Microscopic-Level Insights into P-O-Induced Strong Electronic Coupling Over Nickel Phosphide with Efficient Benzyl Alcohol Electrooxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2306410. [PMID: 38456764 DOI: 10.1002/smll.202306410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/04/2023] [Indexed: 03/09/2024]
Abstract
Electrooxidation of biomass into fine chemicals coupled with energy-saving hydrogen production for a zero-carbon economy holds great promise. Advanced anode catalysts determine the cell voltage and electrocatalytic efficiency greatly, further the rational design and optimization of their active site coordination remains a challenge. Herein, a phosphorus-oxygen terminals-rich species (Ni2 P-O-300) via an anion-assisted pyrolysis strategy is reported to induce strong electronic coupling and high valence state of active nickel sites over nickel phosphide. This ultimately facilitates the rapid yet in-situ formation of high-valence nickel with a high reaction activity under electrochemical conditions, and exhibits a low potential of 1.33 V vs. RHE at 10 mA cm-2 , exceeding most of reported transition metal-based catalysts. Advanced spectroscopy, theoretical calculations, and experiments reveal that the functional P-O species can induce the favorable local bonding configurations for electronic coupling, promoting the electron transfer from Ni to P and the adsorption of benzyl alcohol (BA). Finally, the hydrogen production efficiency and kinetic constant of BA electrooxidation by Ni2 P-O-300 are increased by 9- and 2.8- fold compared with the phosphorus-oxygen terminals-deficient catalysts (Ni2 P-O-500). This provides an anion-assisted pyrolysis strategy to modulate the electronic environment of the Ni site, enabling a guideline for Ni-based energy/catalysis systems.
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Affiliation(s)
- Lin Chen
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Chang Yu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Xuedan Song
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Junting Dong
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Yingnan Han
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Hongling Huang
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Xiuqing Zhu
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yuanyang Xie
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Jieshan Qiu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
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8
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Ma Y, Ha Y, Chen L, An Z, Xing L, Wang Z, Li Z. Electrochemically Induced Ru/CoOOH Synergistic Catalyst as Bifunctional Electrode Materials for Alkaline Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311884. [PMID: 38412403 DOI: 10.1002/smll.202311884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/16/2024] [Indexed: 02/29/2024]
Abstract
Efficient and affordable price bifunctional electrocatalysts based on transition metal oxides for oxygen and hydrogen evolution reactions have a balanced efficiency, but it remains a significant challenge to control their activity and durability. Herein, a trace Ru (0.74 wt.%) decorated ultrathin CoOOH nanosheets (≈4 nm) supported on the surface of nickel foam (Ru/CoOOH@NF) is rationally designed via an electrochemically induced strategy to effectively drive the electrolysis of alkaline overall water splitting. The as-synthesized Ru/CoOOH@NF electrocatalysts integrate the advantages of a large number of different HER (Ru nanoclusters) and OER (CoOOH nanosheets) active sites as well as strong in-suit structure stability, thereby exhibiting exceptional catalytic activity. In particular, the ultra-low overpotential of the HER (36 mV) and the OER (264 mV) are implemented to achieve 10 mA cm-2 . Experimental and theoretical calculations also reveal that Ru/CoOOH@NF possesses high intrinsic conductivity, which facilitates electron release from H2 O and H-OH bond breakage and accelerates electron/mass transfer by regulating the charge distribution. This work provides a new avenue for the rational design of low-cost and high-activity bifunctional electrocatalysts for large-scale water-splitting technology and expects to help contribute to the creation of various hybrid electrocatalysts.
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Affiliation(s)
- Yingyan Ma
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Yuan Ha
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Liangqiang Chen
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Ziqi An
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Linzhuang Xing
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhenni Wang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhimin Li
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
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9
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Li Z, Yang J, Gao R, Xu SM, Kong X, Hua X, Zhao P, Hao H, O'Hare D, Zhao Y. Interplay between Defects and Short-Range Disorder Manipulating the Oxygen Evolution Reaction on a Layered Double Hydroxide Electrocatalyst. J Phys Chem Lett 2024; 15:2006-2014. [PMID: 38349852 DOI: 10.1021/acs.jpclett.3c02885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Improving the efficiency of the oxygen evolution reaction (OER) is crucial for advancing sustainable and environmentally friendly hydrogen energy. Layered double hydroxides (LDHs) have emerged as promising electrocatalysts for the OER. However, a thorough understanding of the impact of structural disorder and defects on the catalytic activity of LDHs remains limited. In this work, a series of NiAl-LDH models are systematically constructed, and their OER performance is rigorously screened through theoretical density functional theory. The acquired results unequivocally reveal that the energy increase induced by structural disorder is effectively counteracted at the defect surface, indicating the coexistence of defects and disorder. Notably, it is ascertained that the simultaneous presence of defects and disorder synergistically augments the catalytic activity of LDHs in the context of the OER. These theoretical findings offer valuable insights into the design of highly efficient OER catalysts while also shedding light on the efficacy of LDH electrocatalysts.
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Affiliation(s)
- Zixian Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, P. R. China
| | - Jiangrong Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, P. R. China
| | - Rui Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University, 010021 Hohhot, Inner Mongolia, P. R. China
| | - Si-Min Xu
- Key Laboratory of Organo-Pharmaceutical Chemistry Jiangxi Province, Gannan Normal University, 341000 Ganzhou, Jiangxi, P. R. China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, P. R. China
| | - Xiao Hua
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Pu Zhao
- Innovation Center for Chemical Science, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, Jiangsu, P. R. China
| | - Haigang Hao
- College of Chemistry and Chemical Engineering, Inner Mongolia University, 010021 Hohhot, Inner Mongolia, P. R. China
| | - Dermot O'Hare
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Yufei Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, P. R. China
- Qingyuan Innovation Laboratory, 362000 Quanzhou, Fujian, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, 324000 Quzhou, Zhejiang, P. R. China
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10
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Li D, Xiang R, Yu F, Zeng J, Zhang Y, Zhou W, Liao L, Zhang Y, Tang D, Zhou H. In Situ Regulating Cobalt/Iron Oxide-Oxyhydroxide Exchange by Dynamic Iron Incorporation for Robust Oxygen Evolution at Large Current Density. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305685. [PMID: 37747155 DOI: 10.1002/adma.202305685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/19/2023] [Indexed: 09/26/2023]
Abstract
The key dilemma for green hydrogen production via electrocatalytic water splitting is the high overpotential required for anodic oxygen evolution reaction (OER). Co/Fe-based materials show superior catalytic OER activity to noble metal-based catalysts, but still lag far behind the state-of-the-art Ni/Fe-based catalysts probably due to undesirable side segregation of FeOOH with poor conductivity and unsatisfied structural durability under large current density. Here, a robust and durable OER catalyst affording current densities of 500 and 1000 mA cm-2 at extremely low overpotentials of 290 and 304 mV in base is reported. This catalyst evolves from amorphous bimetallic FeOOH/Co(OH)2 heterostructure microsheet arrays fabricated by a facile mechanical stirring strategy. Especially, in situ X-ray photoelectron spectroscopy (XPS) and Raman analysis decipher the rapid reconstruction of FeOOH/Co(OH)2 into dynamically stable Co1-x Fex OOH active phase through in situ iron incorporation into CoOOH, which perform as the real active sites accelerating the rate-determining step supported by density functional theory calculations. By coupling with MoNi4 /MoO2 cathode, the self-assembled alkaline electrolyzer can deliver 500 mA cm-2 at a low cell voltage of 1.613 V, better than commercial IrO2 (+) ||Pt/C(-) and most of reported transition metal-based electrolyzers. This work provides a feasible strategy for the exploration and design of industrial water-splitting catalysts for large-scale green hydrogen production.
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Affiliation(s)
- Dongyang Li
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Rong Xiang
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Fang Yu
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Jinsong Zeng
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Yong Zhang
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Weichang Zhou
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Liling Liao
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Yan Zhang
- State Key Laboratory of Marine Resource Utilization in South China Sea, and Department of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Dongsheng Tang
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
| | - Haiqing Zhou
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, 410081, China
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11
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Wei F, Shen J, Gong J, Peng Q, Shi L, Isimjan TT, Yang X. Oxalic Acid-Assisted Vacancy Engineering Promotes Iron-Copper Sulfide Nanosheets for High-Current Density Water Oxidation. J Phys Chem Lett 2024; 15:1172-1180. [PMID: 38270375 DOI: 10.1021/acs.jpclett.3c03256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The effective defect and interface coupling are pivotal for the promotion of the catalytic activity for the oxygen evolution reaction. Herein, we report novel hybrid nanosheets with sulfur vacancies composed of FeS2 and Cu39S28 grown on Cu foam (Vs-FeS2/Cu39S28). The optimal Vs-FeS2/Cu39S28 exhibits a high current output of 500 mA cm-2 at a low overpotential of 370 mV and robust stability for 60 h at 100 mA cm-2, surpassing the values of most previously reported Cu-based catalysts. Furthermore, a two-electrode electrolyzer made by pairing the prepared catalyst with commercial Pt/C requires a low cell voltage of 1.75 V at 100 mA cm-2 and is retained over 80 h. Key to its excellent performance is the synergism between intertwined FeS2 and Cu39S28 domains, enriched by the deliberate introduction of sulfur vacancies, thus optimizing the electronic structure and causing the proliferation of catalytic active sites. This work presents a potent Cu-based electrocatalyst and emphasizes the leveraging of non-precious metals for efficient water oxidation.
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Affiliation(s)
- Fengli Wei
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Jinghao Shen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Junlin Gong
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Qimin Peng
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Luyan Shi
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, China
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12
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Xiao J, Jia X, Du B, Zhong Z, Li C, Sun J, Nie Z, Zhang X, Wang B. Balancing charge recombination and hole transfer rates in hematite photoanodes by modulating the Co 2+/Fe 3+ sites in the OER cocatalyst. J Colloid Interface Sci 2024; 654:915-924. [PMID: 37898075 DOI: 10.1016/j.jcis.2023.10.086] [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: 09/07/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/30/2023]
Abstract
This work investigates the roles of Co and Fe sites in a composite cocatalyst on the performance of hematite photoanodes for photoelectrochemical (PEC) water splitting. The cobalt/iron-based composite (Co-Fe-O) cocatalyst, consisting of adjustable Co2+/Fe3+ratios, was synthesized using a one-step hydrothermal method. It reveals that Co2+ sites with a robust capacity for low-bias hole capture, which is insignificantly affected by partial substitution by Fe3+, decelerate the charge recombination process. However, it also leads to a slower charge transfer, with slower oxygen-evolution kinetics on Co sites than on Fe sites. Consequently, the modulation of the Co2+/Fe3+ ratio facilitates the redistribution of surface strap states, striking a delicate balance between charge recombination and charge transfer rates. This optimization led to the highest low-bias photocurrent density of 1.6 mA cm-2 at 1.0 V vs. RHE (a 2.4-fold increase) for the cocatalyst with a Co2+/Fe3+ ratio of 1:2 (CoFe2O4 nanoparticles). Additionally, the cocatalyst with a Co2+/Fe3+ ratio of 1:4 (mixture of CoFe2O4 and Fe2O3 nanoparticles, demonstrated an impressive high-bias photocurrent density of 3.8 mA cm-2 at 1.6 V vs. RHE (a 2.3-fold increase). This study emphasizes the promising potential of modulating active sites within a cocatalyst to achieve efficient PEC water splitting on a hematite-based photoanode.
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Affiliation(s)
- Jingran Xiao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Xin Jia
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Borui Du
- College of Chemical Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, PR China
| | - Ziqi Zhong
- College of Chemical Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, PR China
| | - Chunxiao Li
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Jialin Sun
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Zunyan Nie
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Xuekai Zhang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Bo Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
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13
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Pham TH, Shen TH, Ko Y, Zhong L, Lombardo L, Luo W, Horike S, Tileli V, Züttel A. Elucidating the Mechanism of Fe Incorporation in In Situ Synthesized Co-Fe Oxygen-Evolving Nanocatalysts. J Am Chem Soc 2023; 145:23691-23701. [PMID: 37862452 PMCID: PMC10623561 DOI: 10.1021/jacs.3c08099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Indexed: 10/22/2023]
Abstract
Ni- and Co-based catalysts with added Fe demonstrate promising activity in the oxygen evolution reaction (OER) during alkaline water electrolysis, with the presence of Fe in a certain quantity being crucial for their enhanced performance. The mode of incorporation, local placement, and structure of Fe ions in the host catalyst, as well as their direct/indirect contribution to enhancing the OER activity, remain under active investigation. Herein, the mechanism of Fe incorporation into a Co-based host was investigated using an in situ synthesized Co-Fe catalyst in an alkaline electrolyte containing Co2+ and Fe3+. Fe was found to be uniformly incorporated, which occurs solely after the anodic deposition of the Co host structure and results in exceptional OER activity with an overpotential of 319 mV at 10 mA cm-2 and a Tafel slope of 28.3 mV dec-1. Studies on the lattice structure, chemical oxidation states, and mass changes indicated that Fe is incorporated into the Co host structure by replacing the Co3+ sites with Fe3+ from the electrolyte. Operando Raman measurements revealed that the presence of doped Fe in the Co host structure reduces the transition potential of the in situ Co-Fe catalyst to the OER-active phase CoO2. The findings of our facile synthesis of highly active and stable Co-Fe particle catalysts provide a comprehensive understanding of the role of Fe in Co-based electrocatalysts, covering aspects that include the incorporation mode, local structure, placement, and mechanistic role in enhancing the OER activity.
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Affiliation(s)
- Thi Ha
My Pham
- Laboratory
of Materials for Renewable Energy (LMER), Institute of Chemical Sciences
and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL), Valais/Wallis, Energypolis, CH-1951 Sion, Switzerland
- Empa
Materials Science & Technology, CH-8600 Dübendorf, Switzerland
| | - Tzu-Hsien Shen
- Institute
of Materials, Ecole Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Youngdon Ko
- Laboratory
of Materials for Renewable Energy (LMER), Institute of Chemical Sciences
and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL), Valais/Wallis, Energypolis, CH-1951 Sion, Switzerland
- Empa
Materials Science & Technology, CH-8600 Dübendorf, Switzerland
| | - Liping Zhong
- Laboratory
of Materials for Renewable Energy (LMER), Institute of Chemical Sciences
and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL), Valais/Wallis, Energypolis, CH-1951 Sion, Switzerland
- Empa
Materials Science & Technology, CH-8600 Dübendorf, Switzerland
| | - Loris Lombardo
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho,
Sakyo-ku, Kyoto 606-8502, Japan
| | - Wen Luo
- School
of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Satoshi Horike
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho,
Sakyo-ku, Kyoto 606-8502, Japan
| | - Vasiliki Tileli
- Institute
of Materials, Ecole Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Andreas Züttel
- Laboratory
of Materials for Renewable Energy (LMER), Institute of Chemical Sciences
and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL), Valais/Wallis, Energypolis, CH-1951 Sion, Switzerland
- Empa
Materials Science & Technology, CH-8600 Dübendorf, Switzerland
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14
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Fan C, Dong W, Saira Y, Tang Y, Fu G, Lee JM. Rare-Earth-Modified Metal-Organic Frameworks and Derivatives for Photo/Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302738. [PMID: 37291982 DOI: 10.1002/smll.202302738] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/25/2023] [Indexed: 06/10/2023]
Abstract
Metal-organic frameworks (MOFs) and their derivatives have attracted much attention in the field of photo/electrocatalysis owing to their ultrahigh porosity, tunable properties, and superior coordination ability. Regulating the valence electronic structure and coordination environment of MOFs is an effective way to enhance their intrinsic catalytic performance. Rare earth (RE) elements with 4f orbital occupancy provide an opportunity to evoke electron rearrangement, accelerate charged carrier transport, and synergize the surface adsorption of catalysts. Therefore, the integration of RE with MOFs makes it possible to optimize their electronic structure and coordination environment, resulting in enhanced catalytic performance. In this review, progress in current research on the use of RE-modified MOFs and their derivatives for photo/electrocatalysis is summarized and discussed. First, the theoretical advantages of RE in MOF modification are introduced, with a focus on the roles of 4f orbital occupancy and RE ion organic coordination ligands. Then, the application of RE-modified MOFs and their derivatives in photo/electrocatalysis is systematically discussed. Finally, research challenges, future opportunities, and prospects for RE-MOFs are also discussed.
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Affiliation(s)
- Chuang Fan
- 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
| | - Wenrou Dong
- 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
| | - Yousaf Saira
- 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
| | - 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
| | - Jong-Min Lee
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technology University, Singapore, 637459, Singapore
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15
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Zhao X, Li Y, Cui Y, Saqib M, Zhang X, Hao R, Zheng Z. Spatiotemporally and Chemically Resolved Imaging of Electrocatalytic Oxygen Evolution on Single Nanoplates of Cobalt-Layered Hydroxide. J Am Chem Soc 2023; 145:20897-20906. [PMID: 37721427 DOI: 10.1021/jacs.3c06062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Transition metal-layered hydroxides have been extensively studied in order to address the key challenge of slow kinetics of the oxygen evolution reaction (OER). However, how the catalytically active sites are evolved and the corresponding heterogeneous structure-property relationship remain unclear. Herein, using cobalt-layered hydroxide as a representative catalyst, we report a strategy for the comprehensive in situ investigation of the electrocatalytic OER process at the single electrocatalyst level using combined electrochemiluminescence (ECL) and vis-absorption microscopy. The stepwise heterogeneous electrocatalytic responses of single-cobalt hydroxide nanoplates are unveiled with ECL imaging, and the corresponding valence state changes are revealed by vis-absorption imaging. The correlated in situ and ex situ multimode analyses indicate that, during the oxidation process, the Co2+ cations in the tetrahedral sites (CoTd2+) turned into CoTd3+ and even the highly unstable CoTd4+, assisted by the interlayer water in a metastable CoOOH·xH2O phase. Crucially, the CoTd4+ sites are mainly distributed in the inner part of the nanoplates and show superior electrocatalytic properties. The correlative single-particle imaging approach for electrocatalytic process analysis with high spatiotemporal and chemical resolution enables in-depth mechanistic insights to be generated and, in turn, will benefit the rational design of electrocatalysts with enhanced performance.
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Affiliation(s)
- Xin Zhao
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Yanyan Li
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
| | - Yu Cui
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Muhammad Saqib
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Xinyu Zhang
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
| | - Rui Hao
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Zhiping Zheng
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
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16
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Magotra VK, Magotra A, Mali SS, Jeon HC, Kang TW, Salunke AS, Hong CK, Shrestha NK, Im H, Inamdar AI. Nanoflake NiMn Layered Double Hydroxide Coated on Porous Membrane-like Ni-Foam for Sustainable and Efficient Electrocatalytic Oxygen Evolution. MEMBRANES 2023; 13:748. [PMID: 37755170 PMCID: PMC10535034 DOI: 10.3390/membranes13090748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023]
Abstract
Layered double hydroxides (LDHs) have gained vast importance as an electrocatalyst for water electrolysis to produce carbon-neutral and clean hydrogen energy. In this work, we demonstrated the fabrication of nano-flake-like NiMn LDH thin film electrodes onto porous membrane-like Ni-foam by using a simple and cost-effective electrodeposition method for oxygen evolution reaction (OER). Various Ni1-xMnx LDH (where x = 0.15, 0.25, 0.35, 0.50 and 0.75) thin film electrodes are utilized to achieve the optimal catalyst for an efficient and sustainable OER process. The various composition-dependent surface morphologies and porous-membrane-like structure provided the high electrochemical surface area along with abundant active sites facilitating the OER. The optimized catalyst referred to as Ni0.65Mn0.35 showed excellent OER properties with an ultralow overpotential of 253 mV at a current density of 50 mAcm-2, which outperforms other state-of-the art catalysts reported in the literature. The relatively low Tafel slope of 130 mV dec-1 indicates faster and more favorable reaction kinetics for OER. Moreover, Ni0.65Mn0.35 exhibits excellent durability over continuous operation of 20 h, indicating the great sustainability of the catalyst in an alkaline medium. This study provides knowledge for the fabrication and optimization of the OER catalyst electrode for water electrolysis.
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Affiliation(s)
- Verjesh Kumar Magotra
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Arjun Magotra
- Department of Computer Science and Engineering, Faculty of Engineering and Technology, Jain (Deemed-to-be University), Bengaluru 562112, India
| | - Sawanta S. Mali
- Polymer Energy Materials Laboratory, School of Applied Chemical Engineering, Chonnam National University, Gwangju 500757, Republic of Korea
| | - Hee C. Jeon
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Tae W. Kang
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Amol S. Salunke
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Chang Kook Hong
- Polymer Energy Materials Laboratory, School of Applied Chemical Engineering, Chonnam National University, Gwangju 500757, Republic of Korea
| | - Nabeen K. Shrestha
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Hyunsik Im
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Akbar I. Inamdar
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
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17
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Sanchis-Gual R, Hunt D, Jaramillo-Hernández C, Seijas-Da Silva A, Mizrahi M, Marini C, Oestreicher V, Abellán G. Crystallographic and Geometrical Dependence of Water Oxidation Activity in Co-Based Layered Hydroxides. ACS Catal 2023; 13:10351-10363. [PMID: 37560192 PMCID: PMC10407849 DOI: 10.1021/acscatal.3c01432] [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: 03/29/2023] [Revised: 06/28/2023] [Indexed: 08/11/2023]
Abstract
Cobalt-based layered hydroxides (LHs) stand out as one of the best families of electroactive materials for the alkaline oxygen evolution reaction (OER). However, fundamental aspects such as the influence of the crystalline structure and its connection with the geometry of the catalytic sites remain poorly understood. Thus, to address this topic, we have conducted a thorough experimental and in silico study on the most important divalent Co-based LHs (i.e., α-LH, β-LH, and LDH), which allows us to understand the role of the layered structure and coordination environment of divalent Co atoms on the OER performance. The α-LH, containing both octahedral and tetrahedral sites, behaves as the best OER catalyst in comparison to the other phases, pointing out the role of the chemical nature of the crystalline structure. Indeed, density functional theory (DFT) calculations confirm the experimental results, which can be explained in terms of the more favorable reconstruction into an active Co(III)-based oxyhydroxide-like phase (dehydrogenation process) as well as the significantly lower calculated overpotential across the OER mechanism for the α-LH structure (exhibiting lower Egap). Furthermore, ex situ X-ray diffraction and absorption spectroscopy reveal the permanent transformation of the α-LH phase into a highly reactive oxyhydroxide-like stable structure under ambient conditions. Hence, our findings highlight the key role of tetrahedral sites on the electronic properties of the LH structure as well as their inherent reactivity toward OER catalysis, paving the way for the rational design of more efficient and low-maintenance electrocatalysts.
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Affiliation(s)
- Roger Sanchis-Gual
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Diego Hunt
- Departamento
de Física de la Materia Condensada, GIyA. Instituto de Nanociencia y Nanotecnología, CNEA-CAC-CONICET, Av. Gral. Paz, 1650 San Martín, Buenos
Aires, Argentina
| | - Camilo Jaramillo-Hernández
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Alvaro Seijas-Da Silva
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Martín Mizrahi
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), Departamento de Química, Facultad de Ciencias Exactas. Universidad Nacional de La Plata, CCT La Plata- CONICET, Diagonal 113 y 64, 1900 La Plata, Argentina
- Facultad
de Ingeniería, Universidad Nacional
de La Plata, Calle 1
esq. 47, 1900 La
Plata, Argentina
| | - Carlo Marini
- CELLS−ALBA
Synchrotron, Cerdanyola del Vallès, 08290 Barcelona, Spain
| | - Víctor Oestreicher
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Gonzalo Abellán
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
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18
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Peng Y, Gao C, Deng X, Zhao J, Chen Q. Elucidating the Geometric Active Sites for Oxygen Evolution Reaction on Crystalline Iron-Substituted Cobalt Hydroxide Nanoplates. Anal Chem 2023. [PMID: 37490501 DOI: 10.1021/acs.analchem.3c01420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Transition-metal (oxy)hydroxides are among the most active and studied catalysts for the oxygen evolution reaction in alkaline electrolytes. However, the geometric distribution of active sites is still elusive. Here, using the well-defined crystalline iron-substituted cobalt hydroxide as a model catalyst, we reported the scanning electrochemical cell microscopy (SECCM) study of single-crystalline nanoplates, where the oxygen evolution reaction at individual nanoplates was isolated and evaluated independently. With integrated prior- and post-SECCM scanning electron microscopy of the catalyst morphology, correlated structure-activity information of individual electrocatalysts was obtained. Our result reveals that while the active sites are largely located at the edges of the pristine Co(OH)2 nanoplates, the Fe lattice incorporation significantly promotes the basal plane activities. Our approach of correlative imaging provides new insights into the effect of iron incorporation on active site distribution across nano-electrocatalysts.
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Affiliation(s)
- Yu Peng
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Cong Gao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Xiaoli Deng
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Jiao Zhao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Qianjin Chen
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
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19
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Liu F, Feng Z, Zhang X, Cui L, Liu J. One-step achievement of Fe-doped and interfacial Ru nanoclusters co-engineered Ni(OH) 2 electrocatalyst on Ni foam for promoted oxygen evolution reaction. J Colloid Interface Sci 2023; 638:498-505. [PMID: 36758260 DOI: 10.1016/j.jcis.2023.01.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/30/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023]
Abstract
The creation of inexpensive, high-performance catalysts to reduce the overpotential of the oxygen evolution reaction (OER) process is critical for the electrolysis of water for hydrogen production. Therefore, we applied a one-step hydrothermal method using cation exchange reaction (CER) to prepare Fe-doped and interfacial Ru nanoclusters co-engineered Ni(OH)2 nanosheets directly grafted on Ni foam (Ru@Fe-Ni(OH)2/NF) for OER process. Results of electrochemical tests reveal that Ru@Fe-Ni(OH)2/NF has excellent OER activity, and its overpotential (η) is only 266.4 mV when the current density is 50 mA cm-2 in 1 M KOH solution, even lower than that of commercial OER catalyst RuO2 (355 mV). The Tafel slope also decreases from 133.8 mV dec-1 for pristine Ni(OH)2/NF material to 24.1 mV dec-1 for Ru@Fe-Ni(OH)2/NF, indicating the higher charge transfer rates and fastest kinetics for water oxidation. At an overpotential of 300 mV the optimal turnover frequency (TOF) of 0.062 s-1 for Ru@Fe-Ni(OH)2/NF is achieved compared to that of Ni(OH)2/NF (0.014 s-1, NN), demonstrating the fast reaction kinetics of the as-prepared electrocatcalyst. After 24 h stability test, the catalytic activity of Ru@Fe-Ni(OH)2/NF was only attenuated by 2 %, showing excellent OER stability and durability. Our results show that we have successfully developed an efficient OER catalyst for green and efficient electrocatalytic hydrolysis to produce H2 and O2, providing a promising method for clean H2 production.
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Affiliation(s)
- Fuguang Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China
| | - Zhonghan Feng
- College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China
| | - Xinyue Zhang
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China
| | - Liang Cui
- College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China.
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China; College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China.
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20
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Bianchetti E, Perilli D, Di Valentin C. Improving the Oxygen Evolution Reaction on Fe 3O 4(001) with Single-Atom Catalysts. ACS Catal 2023; 13:4811-4823. [PMID: 37066046 PMCID: PMC10088028 DOI: 10.1021/acscatal.3c00337] [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: 01/23/2023] [Revised: 03/15/2023] [Indexed: 04/18/2023]
Abstract
Doping magnetite surfaces with transition-metal atoms is a promising strategy to improve the catalytic performance toward the oxygen evolution reaction (OER), which governs the overall efficiency of water electrolysis and hydrogen production. In this work, we investigated the Fe3O4(001) surface as a support material for single-atom catalysts of the OER. First, we prepared and optimized models of inexpensive and abundant transition-metal atoms, such as Ti, Co, Ni, and Cu, trapped in various configurations on the Fe3O4(001) surface. Then, we studied their structural, electronic, and magnetic properties through HSE06 hybrid functional calculations. As a further step, we investigated the performance of these model electrocatalysts toward the OER, considering different possible mechanisms, in comparison with the pristine magnetite surface, on the basis of the computational hydrogen electrode model developed by Nørskov and co-workers. Cobalt-doped systems were found to be the most promising electrocatalytic systems among those considered in this work. Overpotential values (∼0.35 V) were in the range of those experimentally reported for mixed Co/Fe oxide (0.2-0.5 V).
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Affiliation(s)
- Enrico Bianchetti
- Dipartimento
di Scienza dei Materiali, Università
di Milano Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Daniele Perilli
- Dipartimento
di Scienza dei Materiali, Università
di Milano Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Cristiana Di Valentin
- Dipartimento
di Scienza dei Materiali, Università
di Milano Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
- BioNanoMedicine
Center NANOMIB, Università di Milano
Bicocca, Via Raoul Follereau
3, 20900 Monza, Italy
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21
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Xu Z, Jiang Y, Chen JL, Lin RYY. Heterostructured Ultrathin Two-Dimensional Co-FeOOH Nanosheets@1D Ir-Co( OH)F Nanorods for Efficient Electrocatalytic Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16702-16713. [PMID: 36972398 DOI: 10.1021/acsami.2c22632] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
It is highly desirable to develop high-performance and robust electrocatalysts for overall water splitting, as the existing electrocatalysts exhibit poor catalytic performance toward hydrogen and oxygen evolution reactions (HER and OER) in the same electrolytes, resulting in high cost, low energy conversion efficiency, and complicated operating procedures. Herein, a heterostructured electrocatalyst is realized by growing Co-ZIF-67-derived 2D Co-doped FeOOH on 1D Ir-doped Co(OH)F nanorods, denoted as Co-FeOOH@Ir-Co(OH)F. The Ir-doping couples with the synergy between Co-FeOOH and Ir-Co(OH)F effectively modulate the electronic structures and induce defect-enriched interfaces. This bestows Co-FeOOH@Ir-Co(OH)F with abundant exposed active sites, accelerated reaction kinetics, improved charge transfer abilities, and optimized adsorption energies of reaction intermediates, which ultimately boost the bifunctional catalytic activity. Consequently, Co-FeOOH@Ir-Co(OH)F exhibits low overpotentials of 192/231/251 and 38/83/111 mV at current densities of 10/100/250 mA cm-2 toward the OER and HER in a 1.0 M KOH electrolyte, respectively. When Co-FeOOH@Ir-Co(OH)F is used for overall water splitting, cell voltages of 1.48/1.60/1.67 V are required at current densities of 10/100/250 mA cm-2. Furthermore, it possesses outstanding long-term stability for OER, HER, and overall water splitting. Our study provides a promising way to prepare advanced heterostructured bifunctional electrocatalysts for overall alkaline water splitting.
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Affiliation(s)
- Zichen Xu
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024 Liaoning, China
| | - Yuanjuan Jiang
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024 Liaoning, China
| | - Jeng-Lung Chen
- National Synchrotron Radiation Research Center, Hsinchu 300092, Taiwan
| | - Ryan Yeh-Yung Lin
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
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22
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Chang R, Li T, Wu J, He X, Mao Y, Zhang Z, Li K, Xie H. Improving oxygen evolution activity of CoSx by two different Fe-adding method: Comparison of ion exchange and sputtering. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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23
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Zhang J, Liu J, Zhang L, Ke J, Zhong C, Tu Y, Wang L, Song H, Du L, Zhang Z, Cui Z. Fe 3+-Preactivated Ni/ Co-Based Antiperovskite Nitrides for Boosting Oxygen Evolution: Surface Tuning and Catalytic Mechanism. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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24
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Zhao Y, Adiyeri Saseendran DP, Huang C, Triana CA, Marks WR, Chen H, Zhao H, Patzke GR. Oxygen Evolution/Reduction Reaction Catalysts: From In Situ Monitoring and Reaction Mechanisms to Rational Design. Chem Rev 2023; 123:6257-6358. [PMID: 36944098 DOI: 10.1021/acs.chemrev.2c00515] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are core steps of various energy conversion and storage systems. However, their sluggish reaction kinetics, i.e., the demanding multielectron transfer processes, still render OER/ORR catalysts less efficient for practical applications. Moreover, the complexity of the catalyst-electrolyte interface makes a comprehensive understanding of the intrinsic OER/ORR mechanisms challenging. Fortunately, recent advances of in situ/operando characterization techniques have facilitated the kinetic monitoring of catalysts under reaction conditions. Here we provide selected highlights of recent in situ/operando mechanistic studies of OER/ORR catalysts with the main emphasis placed on heterogeneous systems (primarily discussing first-row transition metals which operate under basic conditions), followed by a brief outlook on molecular catalysts. Key sections in this review are focused on determination of the true active species, identification of the active sites, and monitoring of the reactive intermediates. For in-depth insights into the above factors, a short overview of the metrics for accurate characterizations of OER/ORR catalysts is provided. A combination of the obtained time-resolved reaction information and reliable activity data will then guide the rational design of new catalysts. Strategies such as optimizing the restructuring process as well as overcoming the adsorption-energy scaling relations will be discussed. Finally, pending current challenges and prospects toward the understanding and development of efficient heterogeneous catalysts and selected homogeneous catalysts are presented.
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Affiliation(s)
- Yonggui Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | | | - Chong Huang
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Carlos A Triana
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Walker R Marks
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Hang Chen
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Han Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Greta R Patzke
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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25
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Timoshenko J, Haase FT, Saddeler S, Rüscher M, Jeon HS, Herzog A, Hejral U, Bergmann A, Schulz S, Roldan Cuenya B. Deciphering the Structural and Chemical Transformations of Oxide Catalysts during Oxygen Evolution Reaction Using Quick X-ray Absorption Spectroscopy and Machine Learning. J Am Chem Soc 2023; 145:4065-4080. [PMID: 36762901 PMCID: PMC9951215 DOI: 10.1021/jacs.2c11824] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Indexed: 02/11/2023]
Abstract
Bimetallic transition-metal oxides, such as spinel-like CoxFe3-xO4 materials, are known as attractive catalysts for the oxygen evolution reaction (OER) in alkaline electrolytes. Nonetheless, unveiling the real active species and active states in these catalysts remains a challenge. The coexistence of metal ions in different chemical states and in different chemical environments, including disordered X-ray amorphous phases that all evolve under reaction conditions, hinders the application of common operando techniques. Here, we address this issue by relying on operando quick X-ray absorption fine structure spectroscopy, coupled with unsupervised and supervised machine learning methods. We use principal component analysis to understand the subtle changes in the X-ray absorption near-edge structure spectra and develop an artificial neural network to decipher the extended X-ray absorption fine structure spectra. This allows us to separately track the evolution of tetrahedrally and octahedrally coordinated species and to disentangle the chemical changes and several phase transitions taking place in CoxFe3-xO4 catalysts and on their active surface, related to the conversion of disordered oxides into spinel-like structures, transformation of spinels into active oxyhydroxides, and changes in the degree of spinel inversion in the course of the activation treatment and under OER conditions. By correlating the revealed structural changes with the distinct catalytic activity for a series of CoxFe3-xO4 samples, we elucidate the active species and OER mechanism.
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Affiliation(s)
- Janis Timoshenko
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Felix T. Haase
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Sascha Saddeler
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, 45117 Essen, Germany
| | - Martina Rüscher
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Hyo Sang Jeon
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Antonia Herzog
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Uta Hejral
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Arno Bergmann
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Stephan Schulz
- Institute
of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, 45117 Essen, Germany
| | - Beatriz Roldan Cuenya
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
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26
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Zhao J, Wang J, Zheng X, Wang H, Zhang J, Ding J, Han X, Deng Y, Hu W. Activating RuOCo Interaction on the a-Co(OH) 2 @Ru Interface for Accelerating the Volmer Step of Alkaline Hydrogen Evolution. SMALL METHODS 2023; 7:e2201362. [PMID: 36604996 DOI: 10.1002/smtd.202201362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/14/2022] [Indexed: 06/17/2023]
Abstract
The state-of-the-art active hydrogen evolution reaction (HER) catalysts in acid electrolytes generally lose considerable catalytic performance in alkaline electrolytes mainly due to the additional water dissociation step. Designing composite materials is an effective strategy to accelerate alkaline water electrolysis by optimizing the electronic structure of materials. Here, different phases of Co(OH)2 -supported Ru clusters (α/β-Co(OH)2 @Ru) are prepared for enabling a highly efficient electrocatalytic HER performance in alkaline solution. The prepared α-Co(OH)2 nanosheets facilitate the loading of uniform and high-density Ru clusters and the formed highly active RuOCo bonds at the interface. The synergistic interaction endows the hybrid catalyst with low overpotential of 33 mV at 10 mA cm-2 . Moreover, the homemade anion exchange membrane water electrolysis cell based on α-Co(OH)2 @Ru affords a cell voltage of 2 V to drive a current density of 270 mA cm-2 and performs stably during continuous operation for over 100 h. Density functional theory calculations demonstrate that active RuOCo bonds in α-Co(OH)2 @Ru optimize the energy barriers for H2 O dissociation and OH- desorption to facilitate the Volmer reaction step. This work offers a strategy for designing interfacial chemical bonds for high electrocatalytic activity.
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Affiliation(s)
- Jun Zhao
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jiajun Wang
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xuerong Zheng
- School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Haozhi Wang
- School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Jinfeng Zhang
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jia Ding
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaopeng Han
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Yida Deng
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
- School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Wenbin Hu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
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27
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Wang C, Zhai P, Xia M, Liu W, Gao J, Sun L, Hou J. Identification of the Origin for Reconstructed Active Sites on Oxyhydroxide for Oxygen Evolution Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209307. [PMID: 36408935 DOI: 10.1002/adma.202209307] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/07/2022] [Indexed: 06/16/2023]
Abstract
The regulation of atomic and electronic structures of active sites plays an important role in the rational design of oxygen evolution reaction (OER) catalysts toward electrocatalytic hydrogen generation. However, the precise identification of the active sites for surface reconstruction behavior during OER remains elusive for water-alkali electrolysis. Herein, irreversible reconstruction behavior accompanied by copper dynamic evolution for cobalt iron layered double hydroxide (CoFe LDH) precatalyst to form CoFeCuOOH active species with high-valent Co species is reported, identifying the origin of reconstructed active sites through operando UV-Visible (UV-vis), in situ Raman, and X-ray absorption fine-structure (XAFS) spectroscopies. Density functional theory analysis rationalizes this typical electronic structure evolution causing the transfer of intramolecular electrons to form ligand holes, promoting the reconstruction of active sites. Specifically, unambiguous identification of active sites for CoFeCuOOH is explored by in situ 18 O isotope-labeling differential electrochemical mass spectrometry (DEMS) and supported by theoretical calculation, confirming mechanism switch to oxygen-vacancy-site mechanism (OVSM) pathway on lattice oxygen. This work enables to elucidate the vital role of dynamic active-site generation and the representative contribution of OVSM pathway for efficient OER performance.
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Affiliation(s)
- Chen Wang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Panlong Zhai
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Mingyue Xia
- Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Wei Liu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Junfeng Gao
- Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Licheng Sun
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou, 310024, P. R. China
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Jungang Hou
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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28
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Jiang L, Zhu L, Chen L, Ding Y, Zhang W, Brice S. Coupling hybrid membrane capacitive deionization (HMCDI) with electric-enhanced direct contact membrane distillation (EE-DCMD) for lithium/cobalt separation and concentration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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Xue X, Gao H, Liu J, Yang M, Feng S, Liu Z, Lin J, Kasemchainan J, Wang L, Jia Q, Wang G. Electrostatic potential-derived charge: a universal OER performance descriptor for MOFs. Chem Sci 2022; 13:13160-13171. [PMID: 36425504 PMCID: PMC9667949 DOI: 10.1039/d2sc04898a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/17/2022] [Indexed: 12/30/2023] Open
Abstract
Metal-organic frameworks (MOFs) provide opportunities for the design of high-efficiency catalysts attributed to their high compositional and structural tunability. Meanwhile, the huge number of MOFs poses a great challenge to experimental-intensive development of high-performance functional applications. By taking the computationally feasible and structurally representative trigonal prismatic secondary building units (SBUs) of MOFs as the entry point, we introduce a descriptor-based approach for designing high-performance MOFs for the oxygen evolution reaction (OER). The electrostatic potential-derived charge (ESPC) is identified as a robust and universal OER performance descriptor of MOFs, showing a distinct linear relationship with the onset potentials of OER elemental steps. Importantly, we establish an ESPC-based physical pattern of active site-intermediate binding strength, which interprets the rationality of ESPC as an OER performance descriptor. We further reveal that the SBUs with Ni/Cu as active site atoms while Mn/Fe/Co/Ni as spectator atoms have excellent OER activity through the variation pattern of ESPC along with metal composition. The universal correlation between ESPC and OER activity provides a rational rule for designing high-performance MOF-based OER electrocatalysts and can be easily extended to design functional MOFs for a rich variety of catalytic applications.
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Affiliation(s)
- Xiangdong Xue
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Hongyi Gao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Jiangtao Liu
- State Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co., Ltd. Zunyi Guizhou 563003 PR China
| | - Ming Yang
- Department of Applied Physics, The Hong Kong Polytechnic University Hung Hom Hong Kong SAR China
| | - Shihao Feng
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Zhimeng Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Jing Lin
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Jitti Kasemchainan
- Department of Chemical Technology, Chulalongkorn University Bangkok 10330 Thailand
| | - Linmeng Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Qilu Jia
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
| | - Ge Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing Beijing 100083 PR China
- Shunde Graduate School, University of Science and Technology Beijing Shunde 528399 PR China
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30
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Lin F, Tian R, Dong P, Jiang G, He F, Wang S, Fu R, Zhao C, Gu YY, Wang S. Defect-rich MoS2/NiS2 nanosheets loaded on SiNWs for efficient and stable photoelectrochemical hydrogen production. J Colloid Interface Sci 2022; 631:133-142. [DOI: 10.1016/j.jcis.2022.10.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/07/2022]
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31
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Ruthenium-modified porous NiCo2O4 nanosheets boost overall water splitting in alkaline solution. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.12.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Li T, Tang C, Guo H, Wu H, Duan C, Wang H, Zhang F, Cao Y, Yang G, Zhou Y. In Situ Growth of Fe 2O 3 Nanorod Arrays on Carbon Cloth with Rapid Charge Transfer for Efficient Nitrate Electroreduction to Ammonia. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49765-49773. [PMID: 36282959 DOI: 10.1021/acsami.2c14215] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electrochemical reduction of nitrate to ammonia (NH3), a green NH3 production route upon combining with renewable energy sources, is an appealing and alternative method to the Haber-Bosch process. However, this process not only involves the complicated eight-electron reduction to transform nitrate into various nitrogen products but simultaneously suffers from the competitive hydrogen evolution reaction, challenged by a lack of efficient catalysts. Herein, the in situ growth of Fe2O3 nanorod arrays on carbon cloth (Fe2O3 NRs/CC) is reported to exhibit a high NH3 yield rate of 328.17 μmol h-1 cm-2 at -0.9 V versus RHE, outperforming most of the reported Fe catalysts. An in situ growth strategy provides massive exposed active sites and a fast electron-transport channel between the carbon cloth and Fe2O3, which accelerates the charge-transport rate and facilitates the conversion of nitrate to NH3. In situ Raman spectroscopy in conjunction with attenuated total reflection Fourier transform infrared spectroscopy reveals the catalytic mechanism of nitrate to NH3. Our study provides not only an efficient catalyst for NH3 production but also useful guidelines for the pathways and mechanism of nitrate electroreduction to NH3.
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Affiliation(s)
- Tingsong Li
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Chun Tang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Heng Guo
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Haoran Wu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Chao Duan
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Hao Wang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Fengying Zhang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Yuehan Cao
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
| | - Guidong Yang
- XJTU-Oxford Joint International Research Laboratory of Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an710049, China
| | - Ying Zhou
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu610500, China
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33
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Lattice-strain engineering of CoOOH induced by NiMn-MOF for high-efficiency supercapacitor and water oxidation electrocatalysis. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.04.126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Huang S, Zheng J, Qin Z, Li Y, Xu F, Duan F, Zhu H, Lu S, Du M. Constructing abundant active interfaces in ultrafine Ru nanoparticles doped nickel–iron layered double hydroxide to promote electrocatalytic oxygen evolution. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Bai X, Duan Z, Nan B, Wang L, Tang T, Guan J. Unveiling the active sites of ultrathin Co-Fe layered double hydroxides for the oxygen evolution reaction. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64033-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Yao N, Wang G, Jia H, Yin J, Cong H, Chen S, Luo W. Intermolecular Energy Gap-Induced Formation of High-Valent Cobalt Species in CoOOH Surface Layer on Cobalt Sulfides for Efficient Water Oxidation. Angew Chem Int Ed Engl 2022; 61:e202117178. [PMID: 35037704 DOI: 10.1002/anie.202117178] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Indexed: 11/07/2022]
Abstract
Transition metal-based electrocatalysts will undergo surface reconstruction to form active oxyhydroxide-based hybrids, which are regarded as the "true-catalysts" for the oxygen evolution reaction (OER). Much effort has been devoted to understanding the surface reconstruction, but little on identifying the origin of the enhanced performance derived from the substrate effect. Herein, we report the electrochemical synthesis of amorphous CoOOH layers on the surface of various cobalt sulfides (CoSα ), and identify that the reduced intermolecular energy gap (Δinter ) between the valence band maximum (VBM) of CoOOH and the conduction band minimum (CBM) of CoSα can accelerate the formation of OER-active high-valent Co4+ species. The combination of electrochemical and in situ spectroscopic approaches, including cyclic voltammetry (CV), operando electron paramagnetic resonance (EPR) and Raman, reveals that Co species in the CoOOH/Co9 S8 are more readily oxidized to CoO2 /Co9 S8 than in CoOOH and other CoOOH/CoSα . This work provides a new design principle for transition metal-based OER electrocatalysts.
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Affiliation(s)
- Na Yao
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Gongwei Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Hongnan Jia
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Jinlong Yin
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Shengli Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University, Hubei, 430072, Wuhan, P. R. China.,Suzhou Institute of Wuhan University, Suzhou, 215123, Jiangsu, P. R. China
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37
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Hu P, Qin H, Hu K, Dai R, Wang Z, Huang K. Constructing a defect-rich hydroxide nanoenzyme sensor based on dielectric barrier discharge microplasma etching for sensitive detection of thiamine hydrochloride and hydrogen peroxide. J Colloid Interface Sci 2022; 628:597-606. [DOI: 10.1016/j.jcis.2022.07.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022]
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38
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Fe-doped CoFe–P phosphides nanosheets dispersed on nickel foam derived from Prussian blue analogues as efficient electrocatalysts for the oxygen evolution reaction. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Liang X, Chiang FK, Zheng L, Xiao H, Zhang T, Zhang F, Gao Q. High-content atomically distributed W(V,VI) on FeCo layered double hydroxide with high oxygen evolution reaction activity. Chem Commun (Camb) 2022; 58:7678-7681. [PMID: 35730656 DOI: 10.1039/d2cc02157a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
High-content atomically distributed W(V,VI) coordinated with O atoms as WO2 moieties anchored on FeCo layered double hydroxide (FeCo LDH) nanosheets in the structure of SAC W-FeCo LDH is obtained by a facile coprecipitation method, and it presented clearly enhanced stable OER electrocatalytic activity.
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Affiliation(s)
- Xiao Liang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Fu-Kuo Chiang
- National Institute of Clean-and-Low-Carbon Energy, Shenhua NICE, Future Science and Technology City, Beijing, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hong Xiao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Tengfei Zhang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Fanchao Zhang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Qiuming Gao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
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40
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Oxygen-Plasma-Induced Hetero-Interface NiFe 2O 4/NiMoO 4 Catalyst for Enhanced Electrochemical Oxygen Evolution. MATERIALS 2022; 15:ma15103688. [PMID: 35629714 PMCID: PMC9146484 DOI: 10.3390/ma15103688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 12/03/2022]
Abstract
The electrolysis of water to produce hydrogen is an effective method for solving the rapid consumption of fossil fuel resources and the problem of global warming. The key to its success is to design an oxygen evolution reaction (OER) electrocatalyst with efficient conversion and reliable stability. Interface engineering is one of the most effective approaches for adjusting local electronic configurations. Adding other metal elements is also an effective way to enrich active sites and improve catalytic activity. Herein, high-valence iron in a heterogeneous interface of NiFe2O4/NiMoO4 composite was obtained through oxygen plasma to achieve excellent electrocatalytic activity and stability. In particular, 270 mV of overpotential is required to reach a current density of 50 mA cm−2, and the overpotential required to reach 500 mA cm−2 is only 309 mV. The electron transfer effect for high-valence iron was determined by X-ray photoelectron spectroscopy (XPS). The fast and irreversible reconstruction and the true active species in the catalytic process were identified by in situ Raman, ex situ XPS, and ex situ transmission electron microscopy (TEM) measurements. This work provides a feasible design guideline to modify electronic structures, promote a metal to an active oxidation state, and thus develop an electrocatalyst with enhanced OER performance.
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41
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Dai W, Zhou J, Bian Y, Hao Z, Cao Y, Xiao J, Gou H, Gao F. A universal synthesis of MOF-Hydroxyl for highly active oxygen evolution. J Colloid Interface Sci 2022; 623:318-326. [PMID: 35594590 DOI: 10.1016/j.jcis.2022.05.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 05/01/2022] [Accepted: 05/08/2022] [Indexed: 12/13/2022]
Abstract
Since of their adjustable pore structure and variety of metal sites, MOFs materials have infinite possibilities, but their low intrinsic activity hinders them from being employed in electrolytic water. The sulfurization and oxidation of MOFs has proven to be a feasible technique for producing highly active catalytic materials. Here, the MOFs are completely converted to hydroxide by treatment with alkaline solutions only. Electron microscopy demonstrates that hydroxides generated from various MOFs retain the complete profile of the precursor and contain a two-dimensional lamellar or mesoporous structure. Fe-MIL-88(A)-OH, a two-dimensional structural transformation product generated from Fe-MIL-88(A), demonstrates significant OER performance increase. At the same 300 mV overpotential, Fe-MIL-88(A)-OH delivers 83 times the current density of Fe-MIL-88(A) and 16 times that of commercial IrO2 (22.56 mA cm-2 vs. 0.27 mA cm-2 vs. 1.37 mA cm-2). The alkali treatment strategy proved to be a generally applicable treatment for MOFs, allowing the conversion of nickel- and cobalt-based MOFs to hydroxide with a significant boost in OER performance.
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Affiliation(s)
- Wenjing Dai
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Junshuang Zhou
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
| | - Ying Bian
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Zhuoran Hao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yunpeng Cao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Jiajia Xiao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Huiyang Gou
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Faming Gao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
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42
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Feng Z, Pu J, Liu M, Zhang W, Zhang X, Cui L, Liu J. Facile construction of hierarchical Co3S4/CeO2 heterogeneous nanorod array on cobalt foam for electrocatalytic overall water splitting. J Colloid Interface Sci 2022; 613:806-813. [DOI: 10.1016/j.jcis.2022.01.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 01/16/2023]
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43
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Abstract
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This Review provides an overview
of the emerging concepts of catalysts,
membranes, and membrane electrode assemblies (MEAs) for water electrolyzers
with anion-exchange membranes (AEMs), also known as zero-gap alkaline
water electrolyzers. Much of the recent progress is due to improvements
in materials chemistry, MEA designs, and optimized operation conditions.
Research on anion-exchange polymers (AEPs) has focused on the cationic
head/backbone/side-chain structures and key properties such as ionic
conductivity and alkaline stability. Several approaches, such as cross-linking,
microphase, and organic/inorganic composites, have been proposed to
improve the anion-exchange performance and the chemical and mechanical
stability of AEMs. Numerous AEMs now exceed values of 0.1 S/cm (at
60–80 °C), although the stability specifically at temperatures
exceeding 60 °C needs further enhancement. The oxygen evolution
reaction (OER) is still a limiting factor. An analysis of thin-layer
OER data suggests that NiFe-type catalysts have the highest activity.
There is debate on the active-site mechanism of the NiFe catalysts,
and their long-term stability needs to be understood. Addition of
Co to NiFe increases the conductivity of these catalysts. The same
analysis for the hydrogen evolution reaction (HER) shows carbon-supported
Pt to be dominating, although PtNi alloys and clusters of Ni(OH)2 on Pt show competitive activities. Recent advances in forming
and embedding well-dispersed Ru nanoparticles on functionalized high-surface-area
carbon supports show promising HER activities. However, the stability
of these catalysts under actual AEMWE operating conditions needs to
be proven. The field is advancing rapidly but could benefit through
the adaptation of new in situ techniques, standardized evaluation
protocols for AEMWE conditions, and innovative catalyst-structure
designs. Nevertheless, single AEM water electrolyzer cells have been
operated for several thousand hours at temperatures and current densities
as high as 60 °C and 1 A/cm2, respectively.
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Affiliation(s)
- Naiying Du
- National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada.,Energy, Mining and Environment Research Centre, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada
| | - Claudie Roy
- Energy, Mining and Environment Research Centre, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada.,National Research Council of Canada, 2620 Speakman Drive, Mississauga, Ontario L5K 1B1, Canada
| | - Retha Peach
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Cauerstaße 1, 91058 Erlangen, Germany
| | - Matthew Turnbull
- National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada.,Energy, Mining and Environment Research Centre, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada
| | - Simon Thiele
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Cauerstaße 1, 91058 Erlangen, Germany.,Department Chemie- und Bioingenieurwesen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Christina Bock
- National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada.,Energy, Mining and Environment Research Centre, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada
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44
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Xiang R, Nong Y, Song K, Li M, Wang X. Hierarchical Fe Doped Co Oxide/Hydroxide Nanosheet Arrays as Highly Efficient Oxygen Evolution Catalysts Prepared by Hydrothermal Etching of FeCo Prussian Blue Analogue. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rui Xiang
- Chongqing University of Science and Technology - New Campus: Chongqing University of Science and Technology Chemisty and Chemical Engneering No. 20, East University town road, Shapingba district 401331 Chongqing CHINA
| | - Yunchuan Nong
- Chongqing University of Science and Technology - New Campus: Chongqing University of Science and Technology Colledge of Chemisty and Chemical Engineering CHINA
| | - Kejin Song
- Chongqing University of Science and Technology - New Campus: Chongqing University of Science and Technology Colledge of Chemisty and Chemical Engineering CHINA
| | - Maoting Li
- Chongqing University of Science and Technology - New Campus: Chongqing University of Science and Technology Colledge of Chemisty and Chemical Engineering CHINA
| | - Xingyu Wang
- Chongqing University of Science and Technology - New Campus: Chongqing University of Science and Technology Colledge of Chemisty and Chemical Engineering CHINA
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45
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Cai L, Huo J, Zou P, Li G, Liu J, Xu W, Gao M, Zhang S, Wang JQ. Key Role of Lorentz Excitation in the Electromagnetic-Enhanced Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15243-15249. [PMID: 35382552 DOI: 10.1021/acsami.2c00643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Alternating magnetic fields (AMFs) are recently demonstrated as a promising strategy to promote the electrochemical catalytic reactions. However, the underlying mechanisms are still an open question. In this work, we systematically investigated the influence of AMFs on the hydrogen evolution reaction (HER) by using a Fe-Co-Ni-P-B magnetic catalyst. The HER catalytic efficiency is boosted significantly by AMFs, with 27% increase in current density at 20 mT. This is attributed to the enhancement of charge-transfer efficiency by Lorentz interaction with a minor contribution from the heating effect. The high magnetic permeability and skin effect of electromagnetic eddy current for the Fe-Co-Ni-P-B electrode can magnify the Lorentz effect. These findings clarify the mechanism of AMF-enhanced HER catalytic activities and open a door for designing a high-efficiency electrocatalysis system.
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Affiliation(s)
- Liang Cai
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Juntao Huo
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Zou
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guowei Li
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jian Liu
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Wei Xu
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Meng Gao
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Shuzhi Zhang
- School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jun-Qiang Wang
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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46
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Li Y, Zhang X, Zheng Z. CeO 2 Functionalized Cobalt Layered Double Hydroxide for Efficient Catalytic Oxygen-Evolving Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107594. [PMID: 35344284 DOI: 10.1002/smll.202107594] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Water splitting to produce hydrogen is an effective means to alleviate the energy crisis. The anodic oxygen-evolving reaction (OER) limits the overall efficiency due to its high energy barrier. To address this, layered double hydroxides (LDHs) with high catalytic activities have been widely studied, especially those modified with CeO2 , either bound to the surface or doped into interior. However, experimental evidence for the atomic-level understanding of the mechanism for the enhanced catalytic performance is conspicuously missing. Herein, anchoring CeO2 nanoparticles onto Co LDH, based on the thoughts of loading capacity and size effect to regulate the properties of the interface and to optimize the performance, is attempted. The electronic interactions are studied by X-ray photoelectron spectroscopy (XPS) and electron energy loss spectroscopy (EELS), revealing electron transfer from Co2+ to Ce4+ that leads to an increase in Co3+ . The strong Lewis acidity of Co3+ helps the binding of OH- , which is conducive to the formation and transformation of oxygen-containing intermediates. Providing evidence is the formation of one of the key intermediates Co-OOH at a sizably reduced potential as monitored by in situ Raman spectroscopy. With this work, the atomic level correlation of site-specific electronic interactions with the enhanced catalytic performance is clearly established.
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Affiliation(s)
- Yanyan Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, and Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Xinyu Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, and Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Zhiping Zheng
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, and Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, Shenzhen, 518055, P. R. China
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47
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Zheng X, Qin M, Ma S, Chen Y, Ning H, Yang R, Mao S, Wang Y. Strong Oxide-Support Interaction over IrO 2 /V 2 O 5 for Efficient pH-Universal Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104636. [PMID: 35152570 PMCID: PMC9008424 DOI: 10.1002/advs.202104636] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/09/2022] [Indexed: 05/15/2023]
Abstract
Constructing strong oxide-support interaction (SOSI) is compelling for modulating the atomic configurations and electronic structures of supported catalysts. Herein, ultrafine iridium oxide nanoclusters (≈1 nm) are anchored on vanadium oxide support (IrO2 /V2 O5 ) via SOSI. The as made catalyst, with a unique distorted IrO2 structure, is discovered to significantly boost the performance for pH-universal oxygen evolution reaction (OER). Based on experimental results and theoretical calculations, the distorted IrO2 active sites with flexible redox states in IrO2 /V2 O5 server as electrophilic centers balance the adsorption of oxo-intermediates and effectively facilitate the process of OO coupling, eventually propelling the fast turnover of water oxidation. As a result, IrO2 /V2 O5 demonstrates not only ultralow overpotentials at 10 mA cm-2 (266 mV, pH = 0; 329 mV, pH = 7; 283 mV, pH = 14) for OER, but also high-performance overall water electrolysis over a broad pH range, with a potential of mere 1.50 V (pH = 0), 1.65 V (pH = 7) or 1.49 V (pH = 14) at 10 mA cm-2 . In addition, SOSI can simultaneously secure the distorted active sites and thus remarkably improving the catalytic stability, making it a promising strategy to develop high-performance catalytic systems.
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Affiliation(s)
- Xiaozhong Zheng
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Minkai Qin
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Shuangxiu Ma
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Yuzhuo Chen
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Honghui Ning
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Rui Yang
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Shanjun Mao
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
| | - Yong Wang
- Advanced Materials and Catalysis GroupState Key Laboratory of Clean Energy UtilizationCenter of Chemistry for Frontier TechnologiesInstitute of CatalysisDepartment of ChemistryZhejiang UniversityHangzhou310028P. R. China
- College of Chemistry and Molecular EngineeringZhengzhou UniversityZhengzhou450001China
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48
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Jia Z, Zhao Y, Wang Q, Lyu F, Tian X, Liang SX, Zhang LC, Luan J, Wang Q, Sun L, Yang T, Shen B. Nanoscale Heterogeneities of Non-Noble Iron-Based Metallic Glasses toward Efficient Water Oxidation at Industrial-Level Current Densities. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10288-10297. [PMID: 35175044 DOI: 10.1021/acsami.1c22294] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Scaling up the production of cost-effective electrocatalysts for efficient water splitting at the industrial level is critically important to achieve carbon neutrality in our society. While noble-metal-based materials represent a high-performance benchmark with superb activities for hydrogen and oxygen evolution reactions, their high cost, poor scalability, and scarcity are major impediments to achieve widespread commercialization. Herein, a flexible freestanding Fe-based metallic glass (MG) with an atomic composition of Fe50Ni30P13C7 was prepared by a large-scale metallurgical technique that can be employed directly as a bifunctional electrode for water splitting. The surface hydroxylation process created unique structural and chemical heterogeneities in the presence of amorphous FeOOH and Ni2P as well as nanocrystalline Ni2P that offered various active sites to optimize each rate-determining step for water oxidation. The achieved overpotentials for the oxygen evolution reaction were 327 and 382 mV at high current densities of 100 and 500 mA cm-2 in alkaline media, respectively, and a cell voltage of 1.59 V was obtained when using the MG as both the anode and the cathode for overall water splitting at a current density of 10 mA cm-2. Theoretical calculations unveiled that amorphous FeOOH makes a significant contribution to water molecule adsorption and oxygen evolution processes, while the amorphous and nanocrystalline Ni2P stabilize the free energy of hydrogen protons (ΔGH*) in the hydrogen evolution process. This MG alloy design concept is expected to stimulate the discovery of many more high-performance catalytic materials that can be produced at an industrial scale with customized properties in the near future.
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Affiliation(s)
- Zhe Jia
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Yilu Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Qing Wang
- Laboratory for Microstructures Institute of Materials Science, Shanghai University, Shanghai 200072, China
| | - Fucong Lyu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 00000, China
| | - Xiaobao Tian
- Department of Mechanics, Sichuan University, Chengdu 610065, China
| | - Shun-Xing Liang
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, Western Australia 6027, Australia
| | - Lai-Chang Zhang
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, Western Australia 6027, Australia
| | - Junhua Luan
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 00000, China
| | - Qianqian Wang
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Ligang Sun
- School of Science, Harbin Institute of Technology, Shenzhen 518055, China
| | - Tao Yang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 00000, China
| | - Baolong Shen
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
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49
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Zhao D, Zhang R, Dai M, Liu H, Jian W, Bai FQ, Wu X. Constructing High Efficiency CoZn x Mn 2-x O 4 Electrocatalyst by Regulating the Electronic Structure and Surface Reconstruction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107268. [PMID: 35038228 DOI: 10.1002/smll.202107268] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Indexed: 06/14/2023]
Abstract
It is an effective strategy to develop novel electrocatalysts with controllable defects to enhance their electrocatalytic activity and stability. However, how to precisely design these catalysts on the atom scale remains very difficult. Herein, several vacancy-dependent CoZnx Mn2-x O4 catalysts are prepared through tailoring the concentration of Zn ions. The in situ activation of the obtained products accelerates the surface reconstruction. The superior electrocatalytic performance can be ascribed to the formations of MOOH (Mn, Co) active species and abundant oxygen vacancies, which are comparable to noble IrO2 and Pt/C catalysts. Zn-CoMn2 O4 -1.5 catalyst delivers a cell voltage of 1.63 V and long durability. Density functional theory calculations demonstrate that the appropriate Zn ion doping can improve the density states of p electron on the surface of catalysts significantly and benefit the d-band center closing to Fermi level, suggesting their high charge carrier density and low adsorption energy.
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Affiliation(s)
- Depeng Zhao
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, P. R. China
| | - Rui Zhang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry, Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry and College of Chemistry, Jilin University, Changchun, 130023, P. R. China
| | - Meizhen Dai
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, P. R. China
| | - Hengqi Liu
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, P. R. China
| | - Wei Jian
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry, Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry and College of Chemistry, Jilin University, Changchun, 130023, P. R. China
| | - Fu-Quan Bai
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry, Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry and College of Chemistry, Jilin University, Changchun, 130023, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100817, P. R. China
| | - Xiang Wu
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, P. R. China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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50
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Yao Y, He J, Ma L, Wang J, Peng L, Zhu X, Li K, Qu M. Self-supported Co 9S 8-Ni 3S 2-CNTs/NF electrode with superwetting multistage micro-nano structure for efficient bifunctional overall water splitting. J Colloid Interface Sci 2022; 616:287-297. [PMID: 35219194 DOI: 10.1016/j.jcis.2022.02.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 11/29/2022]
Abstract
Electrochemical water splitting for hydrogen production using cost-effective and high-efficiency electrocatalysts in alkaline electrolytes is of great significance for solving energy crisis and environmental pollution. Herein, we reported a superhydrophilic and underwater superaerophobic multistage layered micro-nano structure ofCo9S8-Ni3S2-CNTs/NF on nickel foam (NF) prepared by a simple one-step hydrothermal procedure. Particularly, the multistage layered micro-nano structure makes the electrode superhydrophilic and superaerophobic, which can facilitate the exposure of active sites, accelerate the tansfer of electrolyte and the release of gas bubbles. Consequently, the rough electrode demonstrated excellent catalytic performance in alkaline condition, which only need a low overpotential 127 mV for oxygen evolution reaction (OER) and 243 mV for hydrogen evolution reaction (HER) at 10 mA cm-2 and can keep a long durability for 10 h at 10 mA cm-2. In addition, the production of hydrogen in an electrolytic water device with Co9S8-Ni3S2-CNTs/NF as bifunctional electrode prowered by the electricity derived from solar and wind energy in laboratory condition was artificially simulated. This work represents a perspective in improving the electrocatalytic performance of water splitting by structure and wettability regulation and opens a new avenue for clean energy generation.
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Affiliation(s)
- Yali Yao
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jinmei He
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Lili Ma
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jiaxin Wang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Lei Peng
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Xuedan Zhu
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Kanshe Li
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
| | - Mengnan Qu
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
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