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Ye L, Ding Y, Niu X, Xu X, Fan K, Wen Y, Zong L, Li X, Du X, Zhan T. Unraveling the crucial contribution of additive chromate to efficient and stable alkaline seawater oxidation on Ni-based layered double hydroxides. J Colloid Interface Sci 2024; 665:240-251. [PMID: 38531271 DOI: 10.1016/j.jcis.2024.03.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024]
Abstract
Seawater electrolysis to generate hydrogen offers a clean, green, and sustainable solution for new energy. However, the catalytic activity and durability of anodic catalysts are plagued by the corrosion and competitive oxidation reactions of chloride in high concentrations. In this study, we find that the additive CrO42- anions in the electrolyte can not only promote the formation and stabilization of the metal oxyhydroxide active phase but also greatly mitigate the adverse effect of Cl- on the anode. Linear sweep voltammetry, accelerated corrosion experiments, corrosion polarization curves, and charge transfer resistance results indicate that the addition of CrO42- distinctly improves oxygen evolution reaction (OER) kinetics and corrosion resistance in alkaline seawater electrolytes. Especially, the introduction of CrO42- even in the highly concentrated NaCl (2.5 M) electrolyte prolongs the durability of NiFe-LDH to almost five times the case without CrO42-. Density functional theory calculations also reveal that the adsorption of CrO42- can tune the electronic configuration of active sites of metal oxyhydroxides, enhance conductivity, and optimize the intermediate adsorption energies. This anionic additive strategy can give a better enlightenment for the development of efficient and stable oxygen evolution reactions for seawater electrolysis.
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Affiliation(s)
- Lin Ye
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yao Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xueqing Niu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xinyue Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Kaicai Fan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yonghong Wen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lingbo Zong
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xingwei Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Xiaofan Du
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China; Shandong Energy Institute, Qingdao, 266101, China.
| | - Tianrong Zhan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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Bai J, Chen C, Lian Y, Deng Y, Xiang M, Zhou Q, Tang Y, Su Y. Role of amorphous engineering and cerium doping in NiFe oxyhydroxide for electrocatalytic water oxidation. J Colloid Interface Sci 2024; 663:280-286. [PMID: 38402822 DOI: 10.1016/j.jcis.2024.02.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/08/2024] [Accepted: 02/11/2024] [Indexed: 02/27/2024]
Abstract
Amorphous engineering and atomistic doping provide an effective way to improve the catalytic activity in the oxygen evolution reaction (OER) of transition metal layered double hydroxides. Herein, Cerium (Ce) was introduced into NiFe-based oxyhydroxide using a modified aqueous sol-gel procedure. Ce as an electron acceptor promoted the coupling oxidation of Ni2+/3+ in NiFe oxyhydroxide, and the activated oxyhydroxide showed excellent catalytic activity in OER. The amorphous NiFeCe oxyhydroxide electrocatalyst demonstrated great modified OER catalytic activity under alkaline conditions and excellent cyclic stability, with an overpotential of only 284 mV at 50 mA cm-2, which was significantly better than amorphous NiFe oxyhydroxide and crystalline NiFeCe oxyhydroxide. Theoretical investigations further indicated that the overpotential of the rate-determining step (*OOH deprotonation) decreased from 0.66 to 0.41 V after Ce doping and strong electron interaction, effectively reducing the dependence of proton activity in the solution of OER, and optimizing the adsorption/desorption process of related oxygen-containing species in the reaction. This work also provides a good reference for optimizing OER activity by using rare-earth-metal induced electronic regulation strategies.
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Affiliation(s)
- Jirong Bai
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China; Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Changfan Chen
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China
| | - Yuebin Lian
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China
| | - Yaoyao Deng
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China.
| | - Mei Xiang
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China
| | - Quanfa Zhou
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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Hu Y, Zhou W, Gong W, Gao C, Shen S, Kong T, Xiong Y. Tailoring Second Coordination Sphere for Tunable Solid-Liquid Interfacial Charge Transfer toward Enhanced Photoelectrochemical H 2 Production. Angew Chem Int Ed Engl 2024; 63:e202403520. [PMID: 38446498 DOI: 10.1002/anie.202403520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/07/2024]
Abstract
The recombination of photogenerated charge carriers severely limits the performance of photoelectrochemical (PEC) H2 production. Here, we demonstrate that this limitation can be overcome by optimizing the charge transfer dynamics at the solid-liquid interface via molecular catalyst design. Specifically, the surface of a p-Si photocathode is modulated using molecular catalysts with different metal atoms and organic ligands to improve H2 production performance. Co(pda-SO3H)2 is identified as an efficient and durable catalyst for H2 production through the rational design of metal centers and first/second coordination spheres. The modulation with Co(pda-SO3H)2, which contains an electron-withdrawing -SO3H group in the second coordination sphere, elevates the flat-band potential of the polished p-Si photocathode and nanoporous p-Si photocathode by 81 mV and 124 mV, respectively, leading to the maximized energy band bending and the minimized interfacial carrier transport resistance. Consequently, both the two photocathodes achieve the Faradaic efficiency of more than 95 % for H2 production, which is well maintained during 18 h and 21 h reaction, respectively. This work highlights that the band-edge engineering by molecular catalysts could be an important design consideration for semiconductor-catalyst hybrids toward PEC H2 production.
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Affiliation(s)
- Yangguang Hu
- Anhui Engineering Research Center of Carbon Neutrality, The Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, 241002, Wuhu, Anhui, China
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Wu Zhou
- International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, Xi'an, Shaanxi, China
| | - Wanbing Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Shaohua Shen
- International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, Xi'an, Shaanxi, China
| | - Tingting Kong
- Anhui Engineering Research Center of Carbon Neutrality, The Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, 241002, Wuhu, Anhui, China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
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Rajput A, Nayak PK, Ghosh D, Chakraborty B. Structural and Electronic Factors behind the Electrochemical Stability of 3D-Metal Tungstates under Oxygen Evolution Reaction Conditions. ACS Appl Mater Interfaces 2024. [PMID: 38785123 DOI: 10.1021/acsami.4c07301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Transition metal tungstates (TMTs) possess a wolframite-like lattice structure and preferably form via an electrostatic interaction between a divalent transition metal cation (MII) and an oxyanion of tungsten ([WO4]2-). A unit cell of a TMT is primarily composed of two repeating units, [MO6]oh and [WO6]oh, which are held together via several M-μ2-O-W bridging links. The bond character (ionic or covalent) of this bridging unit determines the stability of the lattice and influences the electronic structure of the bulk TMT materials. Recently, TMTs have been successfully employed as an electrode material for various applications, including electrochemical water splitting. Despite the wide electrocatalytic applications of TMTs, the study of the structure-activity correlation and electronic factors responsible for in situ structural evolution to electroactive species during electrochemical reactions is still in its infancy. Herein, a series of TMTs, MIIWVIO4 (M = Mn/Fe/Co/Ni), have been prepared and employed as electrocatalysts to study the oxygen evolution reaction (OER) under alkaline conditions and to scrutinize the role of transition metals in controlling the energetics of the formation of electroactive species. Since the [WO6]oh unit is common in the TMTs considered, the variation of the central atom of the corresponding [MO6]oh unit plays an intriguing role in controlling the electronic structure and stability of the lattice under anodic potential. Under the OER conditions, a potential-dependent structural transformation of MWO4 is noticed, where MnWO4 appears to be the most labile, whereas NiWO4 is stable up to a high anodic potential of ∼1.68 V (vs RHE). Potential-dependent hydrolytic [WO4]2- dissolution to form MOx active species, traced by in situ Raman and various spectro-/microscopic analyses, can directly be related to the electronic factors of the lattice, viz., crystal field splitting energy (CFSE) of MII in [MO6]oh, formation enthalpy (ΔHf), decomposition enthalpy (ΔHd), and Madelung factor associated with the MWO4 ionic lattice. Additionally, the magnitude of the Löwdin and Bader charges on M of the M-μ2-O-W bond is directly related to the degree of ionicity or covalency in the MWO4 lattice, which indirectly influences the electronic structure and activity. The experimental results substantiated by the computational study explain the electrochemical activity of the TMTs with the help of various structural and electronic factors and bonding interactions in the lattice, which has never been realized. Therefore, the study presented here can be taken as a general guideline to correlate the reactivity to the structure of the inorganic materials.
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Affiliation(s)
- Anubha Rajput
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India
| | - Pabitra Kumar Nayak
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India
| | - Dibyajyoti Ghosh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India
| | - Biswarup Chakraborty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India
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Sun P, Qiao Z, Dong X, Jiang R, Hu ZT, Yun J, Cao D. Designing 3d Transition Metal Cation-Doped MRuO x As Durable Acidic Oxygen Evolution Electrocatalysts for PEM Water Electrolyzers. J Am Chem Soc 2024. [PMID: 38785086 DOI: 10.1021/jacs.4c04096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The continuous dissolution and oxidation of active sites in Ru-based electrocatalysts have greatly hindered their practical application in proton exchange membrane water electrolyzers (PEMWE). In this work, we first used density functional theory (DFT) to calculate the dissolution energy of Ru in the 3d transition metal-doped MRuOx (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) to evaluate their stability for acidic oxygen evolution reaction (OER) and screen out ZnRuOx as the best candidate. To confirm the theoretical predictions, we experimentally synthesized these MRuOx materials and found that ZnRuOx indeed displays robust acidic OER stability with a negligible decay of η10 after 15 000 CV cycles. Of importance, using ZnRuOx as the anode, the PEMWE can run stably for 120 h at 200 mA cm-2. We also further uncover the stability mechanism of ZnRuOx, i.e., Zn atoms doped in the outside of ZnRuOx nanocrystal would form a "Zn-rich" shell, which effectively shortened average Ru-O bond lengths in ZnRuOx to strengthen the Ru-O interaction and therefore boosted intrinsic stability of ZnRuOx in acidic OER. In short, this work not only provides a new study paradigm of using DFT calculations to guide the experimental synthesis but also offers a proof-of-concept with 3d metal dopants as RuO2 stabilizer as a universal principle to develop high-durability Ru-based catalysts for PEMWE.
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Affiliation(s)
- Panpan Sun
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zelong Qiao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xiaobin Dong
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Run Jiang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zhong-Ting Hu
- Institute of Environmental-Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jimmy Yun
- Qingdao International Academician Park Research Institute, Qingdao 266000, PR China
- School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
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Quan X, Ma J, Shao Q, Li H, Sun L, Huang G, Yan S, Hong Z, Wang Y, Wang X. Tungsten doped FeCoP 2 nanoparticles embedded into carbon for highly efficient oxygen evolution reaction. RSC Adv 2024; 14:16639-16648. [PMID: 38784417 PMCID: PMC11110020 DOI: 10.1039/d4ra02326a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024] Open
Abstract
Designing active and stable electrocatalysts with economic efficiency for oxygen evolution reaction (OER) is essential for developing water splitting process at an industrial scale. Herein, we rationally designed a tungsten doped iron cobalt phosphide incorporated with carbon (Wx-FeCoP2/C), prepared by a mechanochemical approach. X-ray photoelectron spectroscopy (XPS) revealed that the doping of W led to an increasing of Co3+/Co2+ and Fe3+/Fe2+ molar ratios, which contributed to the enhanced OER performance. As a result, a current density of 10 mA cm-2 was achieved in 1 M KOH at an overpotential of 264 mV on the optimized W0.1-FeCoP2/C. Moreover, at high current density of 100 mA cm-2, the overpotential value was 310 mV, and the corresponding Tafel slope was measured to be 48.5 mV dec-1, placing it among the best phosphide-based catalysts for OER. This work is expected to enlighten the design strategy of highly efficient phosphide-based OER catalysts.
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Affiliation(s)
- Xinyao Quan
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Jiajia Ma
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Qianshuo Shao
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Haocong Li
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Lingxiang Sun
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Guili Huang
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Su Yan
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Zhanglian Hong
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University Hangzhou 310027 China
| | - Yuning Wang
- Institute of Agricultural Sciences in Taihu Lake District, Suzhou Academy of Agricultural Sciences Suzhou 215155 China
| | - Xiaoqing Wang
- College of Materials and Chemical Engineering, Chuzhou University 239000 Chuzhou China
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Wang Z, Dong X, Tang W, Wang ZL. Contact-electro-catalysis (CEC). Chem Soc Rev 2024; 53:4349-4373. [PMID: 38619095 DOI: 10.1039/d3cs00736g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Contact-electro-catalysis (CEC) is an emerging field that utilizes electron transfer occurring at the liquid-solid and even liquid-liquid interfaces because of the contact-electrification effect to stimulate redox reactions. The energy source of CEC is external mechanical stimuli, and solids to be used are generally organic as well as in-organic materials even though they are chemically inert. CEC has rapidly garnered extensive attention and demonstrated its potential for both mechanistic research and practical applications of mechanocatalysis. This review aims to elucidate the fundamental principle, prominent features, and applications of CEC by compiling and analyzing the recent developments. In detail, the theoretical foundation for CEC, the methods for improving CEC, and the unique advantages of CEC have been discussed. Furthermore, we outline a roadmap for future research and development of CEC. We hope that this review will stimulate extensive studies in the chemistry community for investigating the CEC, a catalytic process in nature.
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Affiliation(s)
- Ziming Wang
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100140, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuanli Dong
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100140, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Tang
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100140, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhong Lin Wang
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100140, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA
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Wang Y, Li L, Wang S, Dong X, Ding C, Mu Y, Cui M, Hu T, Meng C, Zhang Y. Anion Structure Regulation of Cobalt Silicate Hydroxide Endowing Boosted Oxygen Evolution Reaction. Small 2024:e2401394. [PMID: 38709222 DOI: 10.1002/smll.202401394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/12/2024] [Indexed: 05/07/2024]
Abstract
Transition metal silicates (TMSs) are attempted for the electrocatalyst of oxygen evolution reaction (OER) due to their special layered structure in recent years. However, defects such as low theoretical activity and conductivity limit their application. Researchers always prefer to composite TMSs with other functional materials to make up for their deficiency, but rarely focus on the effect of intrinsic structure adjustment on their catalytic activity, especially anion structure regulation. Herein, applying the method of interference hydrolysis and vacancy reserve, new silicate vacancies (anionic regulation) are introduced in cobalt silicate hydroxide (CoSi), named SV-CoSi, to enlarge the number and enhance the activity of catalytic sites. The overpotential of SV-CoSi declines to 301 mV at 10 mA cm-2 compared to 438 mV of CoSi. Source of such improvement is verified to be not only the increase of active sites, but also the positive effect on the intrinsic activity due to the enhancement of cobalt-oxygen covalence with the variation of anion structure by density functional theory (DFT) method. This work demonstrates that the feasible intrinsic anion structure regulation can improve OER performance of TMSs and provides an effective idea for the development of non-noble metal catalyst for OER.
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Affiliation(s)
- Yang Wang
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Longmei Li
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Shengguo Wang
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Xueying Dong
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Chongtao Ding
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yang Mu
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
- College of Environmental and Chemical Engineering, Dalian University, Dalian, 116622, China
| | - Miao Cui
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Tao Hu
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Changgong Meng
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
- College of Environmental and Chemical Engineering, Dalian University, Dalian, 116622, China
| | - Yifu Zhang
- School of Chemistry, Dalian University of Technology, Dalian, 116024, China
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Liu S, Huang WH, Meng S, Jiang K, Han J, Zhang Q, Hu Z, Pao CW, Geng H, Huang X, Zhan C, Yun Q, Xu Y, Huang X. 3D Noble-Metal Nanostructures Approaching Atomic Efficiency and Atomic Density Limits. Adv Mater 2024; 36:e2312140. [PMID: 38241656 DOI: 10.1002/adma.202312140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/10/2023] [Indexed: 01/21/2024]
Abstract
Noble metals have been widely used in catalysis, however, the scarcity and high cost of noble metal motivate researchers to balance the atomic efficiency and atomic density, which is formidably challenging. This article proposes a robust strategy for fabricating 3D amorphous noble metal-based oxides with simultaneous enhancement on atomic efficiency and density with the assistance of atomic channels, where the atomic utilization increases from 18.2% to 59.4%. The unique properties of amorphous bimetallic oxides and formation of atomic channels have been evidenced by detailed experimental characterizations and theoretical simulations. Moreover, the universality of the current strategy is validated by other binary oxides. When Cu2IrOx with atomic channels (Cu2IrOx-AE) is used as catalyst for oxygen evolution reaction (OER), the mass activity and turnover frequency value of Cu2IrOx-AE are 1-2 orders of magnitude higher than CuO/IrO2 and Cu2IrOx without atomic channels, largely outperforming the reported OER catalysts. Theoretical calculations reveal that the formation of atomic channels leads to various Ir sites, on which the proton of adsorbed *OH can transfer to adjacent O atoms of [IrO6]. This work may attract immediate interest of researchers in material science, chemistry, catalysis, and beyond.
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Affiliation(s)
- Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Lab Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou, 215123, China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu, 30076, Taiwan
| | - Shuang Meng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Kezhu Jiang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Jiajia Han
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Qiaobao Zhang
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, 01187, Dresden, Germany
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu, 30076, Taiwan
| | - Hongbo Geng
- School of Materials Engineering Changshu Institute of Technology Changshu, Changshu, 215500, China
| | - Xuan Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Changhong Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Qinbai Yun
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, Kowloon, 999077, China
| | - Yong Xu
- Lab Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou, 215123, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
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10
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Zhang Y, Wang T, Mei L, Yang R, Guo W, Li H, Zeng Z. Rational Design of Cost-Effective Metal-Doped ZrO 2 for Oxygen Evolution Reaction. Nanomicro Lett 2024; 16:180. [PMID: 38662149 PMCID: PMC11045712 DOI: 10.1007/s40820-024-01403-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 03/30/2024] [Indexed: 04/26/2024]
Abstract
The design of cost-effective electrocatalysts is an open challenging for oxygen evolution reaction (OER) due to the "stable-or-active" dilemma. Zirconium dioxide (ZrO2), a versatile and low-cost material that can be stable under OER operating conditions, exhibits inherently poor OER activity from experimental observations. Herein, we doped a series of metal elements to regulate the ZrO2 catalytic activity in OER via spin-polarized density functional theory calculations with van der Waals interactions. Microkinetic modeling as a function of the OER activity descriptor (GO*-GHO*) displays that 16 metal dopants enable to enhance OER activities over a thermodynamically stable ZrO2 surface, among which Fe and Rh (in the form of single-atom dopant) reach the volcano peak (i.e. the optimal activity of OER under the potential of interest), indicating excellent OER performance. Free energy diagram calculations, density of states, and ab initio molecular dynamics simulations further showed that Fe and Rh are the effective dopants for ZrO2, leading to low OER overpotential, high conductivity, and good stability. Considering cost-effectiveness, single-atom Fe doped ZrO2 emerged as the most promising catalyst for OER. This finding offers a valuable perspective and reference for experimental researchers to design cost-effective catalysts for the industrial-scale OER production.
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Affiliation(s)
- Yuefeng Zhang
- Department of Materials Science and Engineering, and State Key Laboratory of Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong, People's Republic of China
| | - Tianyi Wang
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - Liang Mei
- Department of Materials Science and Engineering, and State Key Laboratory of Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong, People's Republic of China
| | - Ruijie Yang
- Department of Materials Science and Engineering, and State Key Laboratory of Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong, People's Republic of China
| | - Weiwei Guo
- Shanxi Supercomputing Center, Lvliang, 033000, Shanxi, People's Republic of China
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
| | - Zhiyuan Zeng
- Department of Materials Science and Engineering, and State Key Laboratory of Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong, People's Republic of China.
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, People's Republic of China.
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11
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Yang C, Yue J, Wang G, Luo W. Activating and Identifying the Active Site of RuS 2 for Alkaline Hydrogen Oxidation Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202401453. [PMID: 38366202 DOI: 10.1002/anie.202401453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
Searching for highly efficient and economical electrocatalysts for alkaline hydrogen oxidation reaction (HOR) is crucial for the development of alkaline polymer membrane fuel cells. Here, we report a valid strategy to active pyrite-type RuS2 for alkaline HOR electrocatalysis by introducing sulfur vacancies. The obtained S-vacancies modified RuS2-x exhibits outperformed HOR activity with a current density of 0.676 mA cm-2 and mass activity of 1.43 mA μg-1, which are 15-fold and 40-fold improvement than those of Ru catalyst. In situ Raman spectra demonstrate the formation of S-H bond during the HOR process, identifying the S atom of RuS2-x is the real active site for HOR catalysis. Density functional theory calculations and experimental results including in situ surface-enhanced infrared absorption spectroscopy suggest the introduction of S vacancies can rationally modify the p orbital of S atoms, leading to enhanced binding strength between the S sites and H atoms on the surface of RuS2-x, together with the promoted connectivity of hydrogen-bonding network and lowered water formation energy, contributes to the enhanced HOR performance.
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Affiliation(s)
- Chaoyi Yang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Jianchao Yue
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Guangqin Wang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
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12
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Yan Q, Feng J, Shi W, Niu W, Lu Z, Sun K, Yang X, Xue L, Liu Y, Li Y, Zhang B. Chromium-Induced High Covalent Co-O Bonds for Efficient Anodic Catalysts in PEM Electrolyzer. Adv Sci (Weinh) 2024:e2402356. [PMID: 38647401 DOI: 10.1002/advs.202402356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/28/2024] [Indexed: 04/25/2024]
Abstract
The proton exchange membrane water electrolyzer (PEMWE), crucial for green hydrogen production, is challenged by the scarcity and high cost of iridium-based materials. Cobalt oxides, as ideal electrocatalysts for oxygen evolution reaction (OER), have not been extensively applied in PEMWE, due to extremely high voltage and poor stability at large current density, caused by complicated structural variations of cobalt compounds during the OER process. Thus, the authors sought to introduce chromium into a cobalt spinel (Co3O4) catalyst to regulate the electronic structure of cobalt, exhibiting a higher oxidation state and increased Co-O covalency with a stable structure. In-depth operando characterizations and theoretical calculations revealed that the activated Co-O covalency and adaptable redox behavior are crucial for facilitating its OER activity. Both turnover frequency and mass activity of Cr-doped Co3O4 (CoCr) at 1.67 V (vs RHE) increased by over eight times than those of as-synthesized Co3O4. The obtained CoCr catalyst achieved 1500 mA cm-2 at 2.17 V and exhibited notable durability over extended operation periods - over 100 h at 500 mA cm-2 and 500 h at 100 mA cm-2, demonstrating promising application in the PEMWE industry.
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Affiliation(s)
- Qisheng Yan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Jie Feng
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Wenjuan Shi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Wenzhe Niu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Zhuorong Lu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Kai Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Xiao Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Liangyao Xue
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Yi Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Bo Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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13
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Wang Z, Chang X, Deng R, Ma K, Wu X, Xie Y, Yang H, Balogun MS, Chen J, Hu YW. A universal method to fabricate high-valence transition metal-based HER electrocatalysts and direct Raman spectroscopic evidence for interfacial water regulation. J Colloid Interface Sci 2024; 660:157-165. [PMID: 38241864 DOI: 10.1016/j.jcis.2024.01.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Valence modulation of transition metal oxides represents a highly effective approach in designing high-performance catalysts, particularly for pivotal applications such as the hydrogen evolution reaction (HER) in solar/electric water splitting and the hydrogen economy. Recently, there has been a growing interest in high-valence transition metal-based electrocatalysts (HVTMs) due to their demonstrated superiority in HER performance, attributed to the fundamental dynamics of charge transfer and the evolution of intermediates. Nevertheless, the synthesis of HVTMs encounters considerable thermodynamic barriers, which presents challenges in their preparation. Moreover, the underlying mechanism responsible for the enhancement in HVTMs still needs to be discovered. Hence, the universal synthesis strategies of the HVTMs are discussed, and direct Raman spectroscopic evidence for intermediates regulation is revealed to guide the further design of the HVTM electrocatalysts. This work offers new insights for facile designing of HVTMs electrocatalysts for energy conversion and storage through adjusting the reaction pathway.
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Affiliation(s)
- Zehua Wang
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Xueru Chang
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Renchao Deng
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Kewen Ma
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Xiao Wu
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Yulu Xie
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Hao Yang
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China.
| | - M-Sadeeq Balogun
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan University, Changsha 410082, China.
| | - Jian Chen
- Instrumental Analysis and Research Centre, Sun Yat-sen University, Guangzhou 510725, China
| | - Yu-Wen Hu
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan University, Changsha 410082, China.
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14
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Wang L, Su H, Tan G, Xin J, Wang X, Zhang Z, Li Y, Qiu Y, Li X, Li H, Ju J, Duan X, Xiao H, Chen W, Liu Q, Sun X, Wang D, Sun J. Boosting Efficient and Sustainable Alkaline Water Oxidation on a W-CoOOH-TT Pair-Sites Catalyst Synthesized via Topochemical Transformation. Adv Mater 2024; 36:e2302642. [PMID: 37434271 DOI: 10.1002/adma.202302642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/13/2023]
Abstract
The development of facile methods for constructing highly active, cost-effective catalysts that meet ampere-level current density and durability requirements for an oxygen evolution reaction is crucial. Herein, a general topochemical transformation strategy is posited: M-Co9S8 single-atom catalysts (SACs) are directly converted into M-CoOOH-TT (M = W, Mo, Mn, V) pair-sites catalysts under the role of incorporating of atomically dispersed high-valence metals modulators through potential cycling. Furthermore, in situ X-ray absorption fine structure spectroscopy is used to track the dynamic topochemical transformation process at the atomic level. The W-Co9S8 breaks through the low overpotential of 160 mV at 10 mA cm-2. A series of pair-site catalysts exhibit a large current density of approaching 1760 mA cm-2 at 1.68 V vs reversible hydrogen electrode (RHE) in alkaline water oxidation and achieve a ≈240-fold enhancement in the normalized intrinsic activity compare to that reported CoOOH, and sustainable stability of 1000 h. Moreover, the O─O bond formation is confirmed via a two-site mechanism, supported by in situ synchrotron radiation infrared and density functional theory (DFT) simulations, which breaks the limit of adsorption-energy scaling relationship on conventional single-site.
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Affiliation(s)
- Ligang Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hui Su
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Guoying Tan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Junjie Xin
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Xiaoge Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Zhuang Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yaping Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yi Qiu
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Xiaohui Li
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Haisheng Li
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Jing Ju
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
| | - Xinxuan Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wenxing Chen
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Qinghua Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, China
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15
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Zhao C, Ma C, Zhang F, Li W, Hong C, Bao F. Co 3O 4/NiCo 2O 4 heterojunction as oxygen evolution reaction catalyst for efficient luminol anode electrochemiluminescence. J Colloid Interface Sci 2024; 659:728-738. [PMID: 38211490 DOI: 10.1016/j.jcis.2024.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 01/13/2024]
Abstract
Luminol has garnered significant attention from analysts as one of the most effective and commonly used electrochemiluminescence (ECL) reagents. However, the efficient luminescence of luminol anode is limited by the excitation of various reactive oxygen species (ROS). Typically, ROS are generated through co-reactive reagents and dissolved oxygen. Unfortunately, the former suffers from two drawbacks, namely biotoxicity and instability, while the latter cannot offer sufficient oxygen due to its limited solubility in aqueous solutions. Consequently, a low decomposition rate is usually obtained, leading to insufficient ROS. Therefore, there is an urgent need to develop efficient luminol anode systems. This study focuses on the use of zeolitic imidazolate framework-67 (ZIF-67) as a template, employing a controlled chemical etching method to create a ZIF-67/Ni-Co-layered double hydroxide (LDH). The intermediate composite is then annealed in air, resulting in the formation of a Co3O4/NiCo2O4 double-shelled nanobox (DSNB) heterostructure. Due to its structural advantages, the DSNB exhibits excellent electrocatalytic performance in the oxygen evolution reaction (OER). Furthermore, it was found that both the intermediates and products of OER can directly participate in the luminol chemiluminescence process, ultimately resulting in a 700-fold increase in the electrochemiluminescence (ECL) signal compared to an equal molar concentration of luminol solution. This work not only establishes the OER-mediated ECL system but also deepens the understanding of the relationship between ROS and luminol, providing a new pathway to study the luminol anodic ECL luminescence system.
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Affiliation(s)
- Chulei Zhao
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, China
| | - Chaoyun Ma
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, China
| | - Fuping Zhang
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, China
| | - Wenjun Li
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Chenglin Hong
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, China.
| | - Fuxi Bao
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, China.
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16
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Nairan A, Feng Z, Zheng R, Khan U, Gao J. Engineering Metallic Alloy Electrode for Robust and Active Water Electrocatalysis with Large Current Density Exceeding 2000 mA cm -2. Adv Mater 2024:e2401448. [PMID: 38518760 DOI: 10.1002/adma.202401448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Indexed: 03/24/2024]
Abstract
The amelioration of brilliantly effective electrocatalysts working at high current density for the oxygen evolution reaction (OER) is imperative for cost-efficient electrochemical hydrogen production. Yet, the kinetically sluggish and unstable catalysts remain elusive to large-scale hydrogen (H2) generation for industrial applications. Herein, a new strategy is demonstrated to significantly enhance the intrinsic activity of Ni1-xFex nanochain arrays through a trace proportion of heteroatom phosphorus doping that permits robust water splitting at an extremely large current density of 1000 and 2000 mA cm-2 for 760 h. The in situ formation of Ni2P and Ni5P4 on Ni1-xFex nanochain arrays surface and hierarchical geometry of the electrode significantly promote the reaction kinetics and OER activity. The OER electrode provides exceptionally low overpotentials of 222 and 327 mV at current densities of 10 and 2000 mA cm-2 in alkaline media, dramatically lower than benchmark IrO2 and is among the most active catalysts yet reported. Remarkably, the alkaline electrolyzer renders a low voltage of 1.75 V at a large current density of 1000 mA cm-2, indicating outperformed overall water splitting. The electrochemical fingerprints demonstrate vital progress toward large-scale H2 production for industrial water electrolysis.
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Affiliation(s)
- Adeela Nairan
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhuo Feng
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruiming Zheng
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Usman Khan
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Junkuo Gao
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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17
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Yang XJ, Yang CC, Jiang Q. DFT Study of N-modified Co 3Mo 3C Electrocatalyst with Separated Active Sites for Enhanced Ammonia Oxidation. ChemSusChem 2024; 17:e202301535. [PMID: 37997528 DOI: 10.1002/cssc.202301535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 11/25/2023]
Abstract
Since the facile oxidation of ammonia is one key for its utilization as a zero-carbon fuel in a direct ammonia fuel cell, developing the ammonia oxidation reaction (AOR) catalysts with cost-effective and higher activity is urgently required. However, the catalytic activity of AOR is limited by the scaling relationship of the intermediate adsorption. Based on the density functional theory, the N-modified Co3Mo3C with separated active sites of NH3 dehydrogenation and N-N coupling has been designed and investigated, which is a promising strategy to circumvent the scaling relationship, achieving improved AOR catalytic performance with a lower theoretical overpotential of 0.59 V under fast reaction kinetics condition. The calculation results show that the hollow site (Co-Mo-Mo and Co-Co-Mo) and Co site in N-modified Co3Mo3C play essential roles in NH3 dehydrogenation and N-N coupling, respectively. This work not only benefits for understanding the mechanism of AOR, but also provides a fundamental guidance for rational design of AOR catalysts.
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Affiliation(s)
- Xue Jing Yang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
| | - Chun Cheng Yang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
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18
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Sun Y, Tang T, Xiao L, Han J, Bai X, Shi M, Chen S, Sun J, Ma Y, Guan J. Nanoflower-Like High-Entropy Co-Fe-Cr-Mo-Mn Spinel for Oxygen Evolution. Chemistry 2024; 30:e202303779. [PMID: 38095235 DOI: 10.1002/chem.202303779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Indexed: 02/01/2024]
Abstract
Oxygen evolution reaction (OER) is the key anode reaction of electrolytic water. To improve the slow OER kinetics, we synthesize nanoflower-like Co-Fe-Cr-Mo-Mn high-entropy spinel (HES) nanosheets on nickel foam (NF) by one-step solvothermal method, which exhibit an overpotential (η10) of only 188 mV at 10 mA cm-2, much lower than bimetallic CoFeOx/NF (233 mV), trimetallic CoFeCrOx/NF (211 mV), and tetrametallic CoFeCrMoOx/NF (200 mV). The OER overpotential decreases with the increase of the number of metals, indicating that the formation of HES has a positive effect on the improvement of electrocatalytic performance, since the synergistic effect between different metals enhances the charge transfer rate and decreases reaction barrier. In-situ Raman spectra demonstrate that the formation of γ-NiOOH on the HES surface is a crucial active species for the OER. This work demonstrates a simple and efficient synthesis method to prepare nanoflower-like high-entropy electrocatalysts for efficient OER electrocatalysis.
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Affiliation(s)
- Yuhang Sun
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province, 161006, China
| | - Tianmi Tang
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Liyuan Xiao
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Jingyi Han
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Xue Bai
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Mingyuan Shi
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province, 161006, China
| | - Siyu Chen
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Jingru Sun
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
| | - Yuanyuan Ma
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province, 161006, China
| | - Jingqi Guan
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun, 130021, China
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19
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Qin R, Chen G, Feng X, Weng J, Han Y. Ru/Ir-Based Electrocatalysts for Oxygen Evolution Reaction in Acidic Conditions: From Mechanisms, Optimizations to Challenges. Adv Sci (Weinh) 2024:e2309364. [PMID: 38501896 DOI: 10.1002/advs.202309364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/20/2024] [Indexed: 03/20/2024]
Abstract
The generation of green hydrogen by water splitting is identified as a key strategic energy technology, and proton exchange membrane water electrolysis (PEMWE) is one of the desirable technologies for converting renewable energy sources into hydrogen. However, the harsh anode environment of PEMWE and the oxygen evolution reaction (OER) involving four-electron transfer result in a large overpotential, which limits the overall efficiency of hydrogen production, and thus efficient electrocatalysts are needed to overcome the high overpotential and slow kinetic process. In recent years, noble metal-based electrocatalysts (e.g., Ru/Ir-based metal/oxide electrocatalysts) have received much attention due to their unique catalytic properties, and have already become the dominant electrocatalysts for the acidic OER process and are applied in commercial PEMWE devices. However, these noble metal-based electrocatalysts still face the thorny problem of conflicting performance and cost. In this review, first, noble metal Ru/Ir-based OER electrocatalysts are briefly classified according to their forms of existence, and the OER catalytic mechanisms are outlined. Then, the focus is on summarizing the improvement strategies of Ru/Ir-based OER electrocatalysts with respect to their activity and stability over recent years. Finally, the challenges and development prospects of noble metal-based OER electrocatalysts are discussed.
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Affiliation(s)
- Rong Qin
- Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Guanzhen Chen
- Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Xueting Feng
- Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Jiena Weng
- Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Yunhu Han
- Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
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20
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Miao L, Jia W, Cao X, Jiao L. Computational chemistry for water-splitting electrocatalysis. Chem Soc Rev 2024; 53:2771-2807. [PMID: 38344774 DOI: 10.1039/d2cs01068b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Electrocatalytic water splitting driven by renewable electricity has attracted great interest in recent years for producing hydrogen with high-purity. However, the practical applications of this technology are limited by the development of electrocatalysts with high activity, low cost, and long durability. In the search for new electrocatalysts, computational chemistry has made outstanding contributions by providing fundamental laws that govern the electron behavior and enabling predictions of electrocatalyst performance. This review delves into theoretical studies on electrochemical water-splitting processes. Firstly, we introduce the fundamentals of electrochemical water electrolysis and subsequently discuss the current advancements in computational methods and models for electrocatalytic water splitting. Additionally, a comprehensive overview of benchmark descriptors is provided to aid in understanding intrinsic catalytic performance for water-splitting electrocatalysts. Finally, we critically evaluate the remaining challenges within this field.
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Affiliation(s)
- Licheng Miao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Wenqi Jia
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Xuejie Cao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Lifang Jiao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China.
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21
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Wang S, Wu J, Xu Y, Liang D, Li D, Chen D, Liu G, Feng Y. Boosting Efficient Alkaline Hydrogen Evolution Reaction of CoFe-Layered Double Hydroxides Nanosheets via Co-Coordination Mechanism of W-Doping and Oxygen Defect Engineering. Small 2024:e2311221. [PMID: 38462963 DOI: 10.1002/smll.202311221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/09/2024] [Indexed: 03/12/2024]
Abstract
While surface defects and heteroatom doping exhibit promising potential in augmenting the electrocatalytic hydrogen evolution reaction (HER), their performance remains unable to rival that of the costly Pt-based catalysts. Yet, the concurrent modification of catalysts by integrating both approaches stands as a promising strategy to effectively address the aforementioned limitation. In this work, tungsten dopants are introduced into self-supported CoFe-layered double hydroxides (LDH) on nickel foam using a hydrothermal method, and oxygen vacancies (Ov) are further introduced through calcination. The analysis results demonstrated that tungsten doping reduces the Ov formation energy of CoFeW-LDH. The Ov acted as oxophilic sites, facilitating water adsorption and dissociation, and reducing the barrier for cleaving HO─H bonds from 0.64 to 0.14 eV. Additionally, Ov regulated the electronic structure of CoFeW-LDH to endow optimized hydrogen binding ability on tungsten atoms, thereby accelerating alkaline Volmer and Heyrovsky reaction kinetics. Specifically, the abundance of Ov induced a transition of tungsten from a six-coordinated to highly active four-coordinated structure, which becomes the active site for HER. Consequently, an ultra-low overpotential of 41 mV at 10 mA cm-2 , and a low Tafel slope of 35 mV dec-1 are achieved. These findings offer crucial insights for the design of efficient HER electrocatalysts.
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Affiliation(s)
- Shaohong Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Jing Wu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Yin Xu
- Department of Environment, College of Environment and Resources, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
- Hunan Key Lab for Environmental Behavior of New Pollutants and Control Principle, Xiangtan, Hunan, 411105, P. R. China
| | - Dandan Liang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Da Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Dahong Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Guohong Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin, 150090, P. R. China
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22
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Duan X, Sha Q, Li P, Li T, Yang G, Liu W, Yu E, Zhou D, Fang J, Chen W, Chen Y, Zheng L, Liao J, Wang Z, Li Y, Yang H, Zhang G, Zhuang Z, Hung SF, Jing C, Luo J, Bai L, Dong J, Xiao H, Liu W, Kuang Y, Liu B, Sun X. Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis. Nat Commun 2024; 15:1973. [PMID: 38438342 PMCID: PMC10912682 DOI: 10.1038/s41467-024-46140-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/15/2024] [Indexed: 03/06/2024] Open
Abstract
Seawater electrolysis offers a renewable, scalable, and economic means for green hydrogen production. However, anode corrosion by Cl- pose great challenges for its commercialization. Herein, different from conventional catalysts designed to repel Cl- adsorption, we develop an atomic Ir catalyst on cobalt iron layered double hydroxide (Ir/CoFe-LDH) to tailor Cl- adsorption and modulate the electronic structure of the Ir active center, thereby establishing a unique Ir-OH/Cl coordination for alkaline seawater electrolysis. Operando characterizations and theoretical calculations unveil the pivotal role of this coordination state to lower OER activation energy by a factor of 1.93. The Ir/CoFe-LDH exhibits a remarkable oxygen evolution reaction activity (202 mV overpotential and TOF = 7.46 O2 s-1) in 6 M NaOH+2.8 M NaCl, superior over Cl--free 6 M NaOH electrolyte (236 mV overpotential and TOF = 1.05 O2 s-1), with 100% catalytic selectivity and stability at high current densities (400-800 mA cm-2) for more than 1,000 h.
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Affiliation(s)
- Xinxuan Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637459, Singapore
| | - Qihao Sha
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Pengsong Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Tianshui Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Guotao Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Wei Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Ende Yu
- Ocean Hydrogen Energy R&D Center, Research Institute of Tsinghua University in Shenzhen, Shenzhen, 518057, PR China
| | - Daojin Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Jinjie Fang
- State Key Lab of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, 100029, Beijing, PR China
| | - Wenxing Chen
- Energy & Catalysis Center, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yizhen Chen
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, PR China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, PR China
| | - Jiangwen Liao
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, PR China
| | - Zeyu Wang
- Department of Chemistry, Tsinghua University, 100084, Beijing, PR China
| | - Yaping Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Hongbin Yang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, PR China
| | - Guoxin Zhang
- College of Energy, Shandong University of Science and Technology, Tsingtao, 266590, PR China
| | - Zhongbin Zhuang
- State Key Lab of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, 100029, Beijing, PR China
- Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, 100029, Beijing, PR China
| | - Sung-Fu Hung
- Department of Applied Chemistry and Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Changfei Jing
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, PR China
| | - Jun Luo
- ShenSi Lab, Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, PR China
| | - Lu Bai
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, 100190, Beijing, PR China
| | - Juncai Dong
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, PR China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, 100084, Beijing, PR China
| | - Wen Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Yun Kuang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China.
- Ocean Hydrogen Energy R&D Center, Research Institute of Tsinghua University in Shenzhen, Shenzhen, 518057, PR China.
| | - Bin Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, PR China.
- Department of Chemistry & Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, 999077, PR China.
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, PR China.
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23
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Zuo S, Liao Y, Wang C, Naden AB, Irvine JTS. Improving the Oxygen Evolution Reaction: Exsolved Cobalt Nanoparticles on Titanate Perovskite Catalyst. Small 2024; 20:e2308867. [PMID: 37899296 DOI: 10.1002/smll.202308867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Indexed: 10/31/2023]
Abstract
Perovskites are an important class of oxygen evolution reaction (OER) catalysts due to highly tunable compositions and adaptable characteristics. However, perovskite-based catalysts can have limited atom utilization efficiency due to large particle size, resulting in low mass activity. Herein, Cobalt nanoparticles are exsolved from La0.2+2x Ca0.7-2x Ti1-x Cox O3 perovskite and applied in OER. Upon reduction in the 5% H2 /N2 atmosphere at 800 °C for 2 h, the Co exsolved perovskite catalyst (R-LCTCo0.11) exhibits optimal OER performance. The mass activity of R-LCTCo0.11 reaches ≈1700 mA mg-1 at an overpotential of 450 mV, which is 17 times and 3 times higher than that of LCTCo0.11 (97 mA mg-1 ) and R-Mix (560 mA mg-1 ) catalysts respectively, surpassing the benchmark catalyst RuO2 (42.7 mA mg-1 of oxide at η = 470 mV). Electrochemical impedance spectroscopy (EIS) data reveals that R-LCTCo0.11 has the lowest charge transfer resistance (Rct = 58 Ω), demonstrating the highest catalytic and kinetic activity for OER. Furthermore, this catalyst shows high stability during an accelerated durability test of 10 h electrolysis and 1000 cycles cyclic voltammetry (CV). This work demonstrates that nanoparticle exsolution from a doped perovskite is an effective strategy for improving the atom utilization efficiency in OER.
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Affiliation(s)
- Shangshang Zuo
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Yuan Liao
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Chenchen Wang
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Aaron B Naden
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - John T S Irvine
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
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24
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Pastor E, Lian Z, Xia L, Ecija D, Galán-Mascarós JR, Barja S, Giménez S, Arbiol J, López N, García de Arquer FP. Complementary probes for the electrochemical interface. Nat Rev Chem 2024; 8:159-178. [PMID: 38388837 DOI: 10.1038/s41570-024-00575-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2024] [Indexed: 02/24/2024]
Abstract
The functions of electrochemical energy conversion and storage devices rely on the dynamic junction between a solid and a fluid: the electrochemical interface (EI). Many experimental techniques have been developed to probe the EI, but they provide only a partial picture. Building a full mechanistic understanding requires combining multiple probes, either successively or simultaneously. However, such combinations lead to important technical and theoretical challenges. In this Review, we focus on complementary optoelectronic probes and modelling to address the EI across different timescales and spatial scales - including mapping surface reconstruction, reactants and reaction modulators during operation. We discuss how combining these probes can facilitate a predictive design of the EI when closely integrated with theory.
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Affiliation(s)
- Ernest Pastor
- CNRS, IPR (Institut de Physique de Rennes), University of Rennes, Rennes, France.
- CNRS, Univ Rennes, DYNACOM (Dynamical Control of Materials Laboratory) - IRL2015, The University of Tokyo, Tokyo, Japan.
| | - Zan Lian
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - Lu Xia
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - David Ecija
- IMDEA Nanoscience, Campus Universitario de Cantoblanco, Madrid, Spain
| | - José Ramón Galán-Mascarós
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
- ICREA, Barcelona, Spain
| | - Sara Barja
- Department of Polymers and Advanced Materials, Centro de Física de Materiales (CFM), University of the Basque Country UPV/EHU, San Sebastián, Spain
- Donostia International Physics Center (DIPC), San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Sixto Giménez
- Institute of Advanced Materials (INAM) Universitat Jaume I, Castelló, Spain
| | - Jordi Arbiol
- ICREA, Barcelona, Spain
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
| | - Núria López
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - F Pelayo García de Arquer
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.
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25
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Wang P, Zhang C, Ding J, Ji Y, Li Y, Zhang W. Motivating Inert Strontium Manganate with Iridium Dopants as Efficient Electrocatalysts for Oxygen Evolution in Acidic Electrolyte. Small 2024; 20:e2305662. [PMID: 37897152 DOI: 10.1002/smll.202305662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/14/2023] [Indexed: 10/29/2023]
Abstract
The search for high-performance and low-cost electrocatalysts in acid conditions still remains a challenging target. Herein, iridium (Ir) doped strontium manganate (named as Irx -SMO) is proposed as an efficient and durable low-iridium electrocatalyst for water oxidation in acidic media. The Ir0.1 -SMO with 75% less iridium in comparison to that of iridium dioxide (IrO2 ) exhibits excellent performance for oxygen evolution reaction (OER), which is even better than most of the iridium-based oxide electrocatalysts. The theoretical outcomes confirm the activation of the inert manganese sites in strontium manganate by the incorporation of iridium dopants. This work reveals the boosted effect of the iridium dopants on the OER activity of strontium manganate, providing a strategy to tune the activity of manganese-based perovskites in electrocatalysis.
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Affiliation(s)
- Piao Wang
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
| | - Changle Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Jiabao Ding
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078, Macau
| | - Weifeng Zhang
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
- Center for Topological Functional Materials, Henan University, Kaifeng, 475004, China
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26
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Xu X, Wang X, Huo S, Liu X, Ma X, Liu M, Zou J. Modulation of Phase Transition in Cobalt Selenide with Simultaneous Construction of Heterojunctions for Highly-Efficient Oxygen Electrocatalysis in Zinc-Air Battery. Adv Mater 2024; 36:e2306844. [PMID: 37813107 DOI: 10.1002/adma.202306844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/31/2023] [Indexed: 10/11/2023]
Abstract
Phase transformation of cobalt selenide (CoSe2 ) can effectively modulate its intrinsic electrocatalytic activity. However, enhancing electroconductivity and catalytic activity/stability of CoSe2 still remains challenging. Heterostructure engineering may be feasible to optimize interfacial properties to promote the kinetics of oxygen electrocatalysis on a CoSe2 -based catalyst. Herein, a heterostructure consisting of CoSe2 and cobalt nitride (CoN) embedded in a hollow carbon cage is designed via a simultaneous phase/interface engineering strategy. Notably, the phase transition of orthorhombic-CoSe2 to cubic-CoSe2 (c-CoSe2 ) accompanied by in situ CoN formation is realized to build the c-CoSe2 /CoN heterointerface, which exhibits excellent/highly stable activities for oxygen reduction/evolution reactions (ORR/OER). Notably, heterostructure can modulate the local coordination environment and increase Co-Se/N bond lengths. Theoretical calculations show that Co-site (c-CoSe2 ) with an electronic state near Fermi energy level is the main active site for ORR/OER.Energetical tailoring of the d-orbital electronic structure of the Co atom of c-CoSe2 in heterostructure by in situ CoN incorporation lowers thermodynamic barriers for ORR/OER. Attractively, a zinc-air battery with a c-CoSe2 -CoN cathode displays excellent cycling stability (250 h) and charge/discharge voltage loss (0.953/0.96 V). It highlights that heterointerface engineering provides an option for modulating the bifunctional activity of metal selenides with controlled phase transformation.
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Affiliation(s)
- Xiaoqin Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Xinyu Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Sichen Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Xiaofeng Liu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Xuena Ma
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Mingyang Liu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
| | - Jinlong Zou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
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27
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Li Y, Wu Y, Li T, Yao Y, Cai H, Gao J, Qian G. Amorphous Engineering of Scalable Metal-Organic Framework-Derived Electrocatalyst for Highly Efficient Oxygen Evolution Reaction. Small 2024:e2311356. [PMID: 38295058 DOI: 10.1002/smll.202311356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/17/2024] [Indexed: 02/02/2024]
Abstract
The engineering of amorphous metal-organic frameworks (MOFs) offers potential opportunities for the construction of electrocatalysts for efficient oxygen evolution reaction (OER). Herein, highly efficient OER performance and durability in alkaline electrolyte are discovered for MOF-derived amorphous and porous electrocatalysts, which are synthesized in a brief procedure and can be facilely produced in scalable quantities. The structural inheritance of MOF amorphous catalysts is significant for the retention of catalytic sites and the diffusion of electrolytes, and the presence of Fe sites can change the electronic structure and effectively control the adsorption behavior of important intermediates, accelerating reaction kinetics. The obtained amorphous A-FeNi can be transformed from FeNi-MOF effortlessly and instantly, and it only needs low overpotentials of 152 and 232 mV at 10 and 100 mA cm-2 with a Tafel slope of 17 mV dec-1 in 1 m KOH for OER. Moreover, A-FeNi possesses high corrosion resistance and durability, therefore A-FeNi can work continually for at least 400 h at 100 mA cm-2 . This work may pave a new avenue for the design of MOFs-related amorphous electrocatalyst.
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Affiliation(s)
- Yuwen Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yuhang Wu
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China
| | - Tongtong Li
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China
| | - Yue Yao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Haotian Cai
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Junkuo Gao
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China
| | - Guodong Qian
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
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28
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Bari GAKMR, Jeong JH. Comprehensive Insights and Advancements in Gel Catalysts for Electrochemical Energy Conversion. Gels 2024; 10:63. [PMID: 38247786 PMCID: PMC10815738 DOI: 10.3390/gels10010063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Continuous worldwide demands for more clean energy urge researchers and engineers to seek various energy applications, including electrocatalytic processes. Traditional energy-active materials, when combined with conducting materials and non-active polymeric materials, inadvertently leading to reduced interaction between their active and conducting components. This results in a drop in active catalytic sites, sluggish kinetics, and compromised mass and electronic transport properties. Furthermore, interaction between these materials could increase degradation products, impeding the efficiency of the catalytic process. Gels appears to be promising candidates to solve these challenges due to their larger specific surface area, three-dimensional hierarchical accommodative porous frameworks for active particles, self-catalytic properties, tunable electronic and electrochemical properties, as well as their inherent stability and cost-effectiveness. This review delves into the strategic design of catalytic gel materials, focusing on their potential in advanced energy conversion and storage technologies. Specific attention is given to catalytic gel material design strategies, exploring fundamental catalytic approaches for energy conversion processes such as the CO2 reduction reaction (CO2RR), oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and more. This comprehensive review not only addresses current developments but also outlines future research strategies and challenges in the field. Moreover, it provides guidance on overcoming these challenges, ensuring a holistic understanding of catalytic gel materials and their role in advancing energy conversion and storage technologies.
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Affiliation(s)
- Gazi A. K. M. Rafiqul Bari
- School of Mechanical Smart and Industrial Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
| | - Jae-Ho Jeong
- School of Mechanical Smart and Industrial Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
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Zhu Y, Zhang S, Chen R, Wang Z, Wu W, Jiang H, Chen H, Cheng N. Controllable Electronic Transfer Tailoring d-band Center via Cobalt-Oxygen-Bridged Ru/Fe Dual-sites for Boosted Oxygen Evolution. Small 2024:e2310611. [PMID: 38212278 DOI: 10.1002/smll.202310611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/26/2023] [Indexed: 01/13/2024]
Abstract
Rational tailoring of the electronic structure at the defined active center of reconstructed metal (oxy)hydroxides (MOOH) during oxygen evolution reaction (OER) remains a challenge. With the guidance of density functional theory (DFT), herein a dual-site regulatory strategy is reported to tailor the d-band center of the Co site in CoOOH via the controlled electronic transfer at the Ru─O─Co─O─Fe bonding structure. Through the bridged O2- site, electrons are vastly flowed from the t2g -orbital of the Ru site to the low-spin orbital of the Co site in the Ru-O-Co coordination and further transfer from the strong electron-electron repulsion of the Co site to the Fe site by the Co-O-Fe coordination, which balancing the electronic configuration of Co sites to weaken the over-strong adsorption energy barrier of OH* and O* , respectively. Benefiting from the highly active of the Co site, the constructed (Ru2 Fe2 Co6 )OOH provide an extremely low overpotential of 248 mV and a Tafel slope of 32.5 mV dec-1 at 10 mA cm-2 accompanied by long durability in alkaline OER, far superior over the pristine and Co-O-Fe bridged CoOOH catalysts. This work provides guidance for the rational design and in-depth analysis of the optimized role of metal dual-sites.
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Affiliation(s)
- Yu Zhu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Shunqiang Zhang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Runzhe Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Zichen Wang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Wei Wu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Haoran Jiang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Heyuan Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Niancai Cheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
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30
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John G, Priyadarshini S, Babu A, Mohan H, Oh BT, Navaneethan M, Jesuraj PJ. Unleashing the room temperature boronization: Blooming of Ni-ZIF nanobuds for efficient photo/electro catalysis of water. Chemosphere 2024; 346:140574. [PMID: 37926164 DOI: 10.1016/j.chemosphere.2023.140574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/18/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Water splitting provides an environmental-friendly and sustainable approach for generating hydrogen fuel. The inherent energetic barrier in two-core half reactions such as the Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER) leads to undesired increased overpotential and constrained reaction kinetics. These challenges pose significant challenges that demand innovative solutions to overcome. One of the efficient ways to address this issue is tailoring the morphology and crystal structure of metal-organic frameworks (MOF). Nickel Zeolite Imidazolate Framework (Ni-ZIF) is a popular MOF and it can be tailored using facile chemical methods to unleash a remarkable bifunctional electro/photo catalyst. This innovative solution holds the capability to address prevailing obstacles such as inadequate electrical conductivity and limited access to active metal centers due to the influence of organic ligands. Thereby, applying boronization to the Ni-ZIF under different duration, one can induce blooming of nanobuds under room temperature and modify oxygen vacancies in order to achieve higher reaction kinetics in electro/photo catalysis. It can be evidenced by the 24-h boronized Ni-ZIF (BNZ), exhibiting lower overpotentials as electrocatalyst (OER-396 mV & HER-174 mV @ 20 mA/cm2) in 1 M KOH electrolyte and augmented gas evolution rates when employed as a photocatalyst (Hydrogen-14.37 μmol g-1min-1 & Oxygen-7.40 μmol g-1min-1). The 24-h boronization is identified as the optimum stage of crystalline to amorphous transformation which provided crystalline/amorphous boundaries as portrayed by X-Ray diffraction (XRD) and High Resolution-Transmission Electron Microscopy (HR-TEM) analysis. The flower-like transformation of 24-BNZ, characterized by crystalline-amorphous boundaries initiates with partial disruption of Ni-N bonds and formation of Ni-B bonds as evident from X-ray Photoelectron Spectroscopy (XPS). Further, the 24-h BNZ exhibit bifunctional catalytic activities with pre-longed stability. Overall, this work presents a comprehensive study of the electrocatalytic and photocatalytic water splitting properties of the tailored Ni-ZIF material.
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Affiliation(s)
- G John
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - S Priyadarshini
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - Anandha Babu
- Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, Tamil nadu, India; Department of Physiology, Saveetha Dental college and hospitals, Saveetha Institute of Medical and Technical sciences, Saveetha University, chennai - 600077, Tamil nadu, India
| | - Harshavardhan Mohan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - M Navaneethan
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - P Justin Jesuraj
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India.
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31
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Wang J, Liang C, Ma X, Liu P, Pan W, Zhu H, Guo Z, Sui Y, Liu H, Liu L, Yang C. Dynamically Adaptive Bubbling for Upgrading Oxygen Evolution Reaction Using Lamellar Fern-Like Alloy Aerogel Self-Standing Electrodes. Adv Mater 2024; 36:e2307925. [PMID: 37742133 DOI: 10.1002/adma.202307925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/14/2023] [Indexed: 09/25/2023]
Abstract
Adopting renewable electricity to produce "green" hydrogen has been a critical challenge because at a high current density the mass transfer capability of most catalytic electrodes deteriorates significantly. Herein, a unique lamellar fern-like alloy aerogel (LFA) electrode, showing a unique dynamically adaptive bubbling capability and can effectively avoid stress concentration caused by bubble aggregation is reported. The LFA electrode is intrinsically highly catalytic-active and shows a highly porous, resilient, hierarchically ordered, and well-percolated conductive network. It not only shows superior gas evacuation capability but also exhibits significantly improved stability at high current densities, showing the record lowest oxygen evolution reaction (OER) overpotential of 244 mV at 1000 mA cm-2 and stably over 6000 h. With the merits of mechanical robustness, excellent electron transport, and efficient bubble evacuation, LFA can be self-standing catalytic electrode and gas diffusion layers in anion-exchange-membrane water electrolysis (AEMWE), which can achieve 3000 mA cm-2 at a low voltage of 1.88 V and can sustain stable electrolysis at 2000 mA cm-2 for over 1300 h. This strategy can be extended to various gas evolution reactions as a general design rule for multiphase catalysis applications.
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Affiliation(s)
- Juan Wang
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Caiwu Liang
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
- Department of Materials, Imperial College London, 80 Wood Lane, London, W120BZ, UK
| | - Xuyang Ma
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Peng Liu
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Weisheng Pan
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Haojie Zhu
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhenbin Guo
- Institute of Semiconductor Manufacturing Research, Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China
| | - Yiming Sui
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331-4003, USA
| | - Hongjie Liu
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Le Liu
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Cheng Yang
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
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Wei L, Du M, Zhao R, Zhang Y, Zhang L, Li L, Yang S, Su J. Active sites engineering on FeNi alloy/Cr 3C 2 heterostructure for superior oxygen evolution activity. J Colloid Interface Sci 2024; 653:1075-1084. [PMID: 37783007 DOI: 10.1016/j.jcis.2023.09.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/04/2023]
Abstract
Exploring high active electrocatalysts for oxygen evolution reaction (OER) is of great significance for a sustainable hydrogen economy. The development of non-precious transition metals, with sufficient active sites and ample intrinsic activity, remains a challenge. Herein, a new type of FeNi-Cr3C2 heterostructure anchored on carbon sheets (FeNi-Cr3C2@C) was reported, which can effectively catalyze OER with swift kinetics and outstanding intrinsic activity. The introduced Cr3C2 phase not only serves as a support material but also effectively suppresses the thermal coarsening of FeNi alloy nanoparticle. The FeNi-Cr3C2@C displays a robust OER activity with a low overpotential of 283 mV at the current density of 10 mA cm-2, a high turnover frequency value of 1.69 s-1 at the overpotential of 300 mV (10 times higher than that of FeNi@C) and good stability in alkaline media. Density functional theory calculations (DFT) calculations show that Cr3C2 can facilitate the generation of electron-rich region at the Ni site in FeNi alloys as an active site, exhibiting an optimized adsorption behavior toward oxygen intermediate species with regard to decreased thermodynamic energy barriers. Our work opens up a promising path to modulate the electrocatalytic active sites using inexpensive and durable Cr3C2 for electrochemical catalytic reactions.
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Affiliation(s)
- Liting Wei
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Department of Applied Chemistry, Yuncheng University, Yuncheng 044000, China
| | - Mingyue Du
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Rui Zhao
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yan Zhang
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Zhang
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lubing Li
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Suyi Yang
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jinzhan Su
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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33
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Sakaushi K, Hoisang W, Tamura R. Human-Machine Collaboration for Accelerated Discovery of Promising Oxygen Evolution Electrocatalysts with On-Demand Elements. ACS Cent Sci 2023; 9:2216-2224. [PMID: 38161381 PMCID: PMC10755732 DOI: 10.1021/acscentsci.3c01009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/29/2023] [Accepted: 10/19/2023] [Indexed: 01/03/2024]
Abstract
A drastically efficient method for identifying electrocatalysts with desirable functionality is a pressing necessity for making a breakthrough in advanced water-electrolyzers toward large-scale green hydrogen production and addressing the significant challenge of carbon neutrality. Despite extensive investigations over the last several centuries, it remains a time-consuming task to identify even one promising affordable electrocatalyst without platinum-group-metal (PGM) for one electrochemical reaction due to its great complexities, particularly for the key anode reaction in the water-electrolyzer of the oxygen evolution reaction (OER). In this study, we demonstrate that a human-machine collaboration based on stepwise-evolving artificial intelligence (se-AI) can significantly shorten the development period of PGM-free multimetal OER electrocatalysts with performance beyond a PGM of RuO2. We were able to reach optimized materials only after 2% experimental trials of the entire candidate pool. The best PGM-free electrocatalyst discovered exhibited excellent activity comparable to RuO2 and, surprisingly, also demonstrated superior stability with a high current density of up to 1000 mA/cm2 at even pH 9.2, which condition is a thermodynamically challenging for typical PGM-free materials. This work illustrates that human's material discovery can be significantly accelerated through collaboration with AI.
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Affiliation(s)
- Ken Sakaushi
- Research
Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Watcharaporn Hoisang
- Research
Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Ryo Tamura
- Center
for Basic Research on Materials, National
Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate
School of Frontier Sciences, The University
of Tokyo, Kashiwa 277-8561, Japan
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34
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Wang S, Zang J, Shi W, Zhou D, Jia Y, Wu J, Yan W, Zhang B, Sun L, Fan K. Simultaneously Improved Activity and Stability for Acidic Water Oxidation of IrRu Oxides by a Dual Role of Tungsten Doping. ACS Appl Mater Interfaces 2023; 15:59432-59443. [PMID: 38108306 DOI: 10.1021/acsami.3c13619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Acidic oxygen evolution reaction (OER) remains a significant challenge due to the low activity and/or poor stability of the catalysts, even with state-of-the-art catalysts such as IrO2 and RuO2. Herein, we propose a strategy to enhance both the catalytic activity and stability of IrRu oxides for acidic OER by doping non-noble metal W. The W-doped IrRu3Ox (W-IrRu3Ox) undergoes a process of W leaching and reconstruction during the OER, leading to a more uniform distribution of elements, while the electronegative nature of W influences the electronic structures of Ir and Ru in W-IrRu3Ox. The dual role of W in promoting the formation of active site Ir5+ and inhibiting the concentration of soluble Ru>4+ ions results in a synergistic enhancement of both the activity and stability of acidic OER. Remarkably, W-IrRu3Ox exhibits outstanding catalytic activity for the OER in 0.5 M H2SO4, with a high stability of more than 500 h. This work presents a novel and feasible strategy for the development of efficient and stable catalysts for acid OER, shedding light on the design of advanced electrocatalysts for energy conversion and storage applications.
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Affiliation(s)
- Simeng Wang
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
| | - Jianyang Zang
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, 310024 Hangzhou, China
| | - Weili Shi
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, 310024 Hangzhou, China
| | - Dinghua Zhou
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
| | - Yufei Jia
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
| | - Jingpin Wu
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
| | - Weihong Yan
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
| | - Biaobiao Zhang
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, 310024 Hangzhou, China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, 310024 Hangzhou, China
| | - Ke Fan
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Centre on Molecular Devices, Frontier Science Center for Smart Materials, Institute for Energy Science and Technology, Dalian University of Technology, 116024 Dalian, China
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35
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Liu J, Zhang M, Li SD, Mu Y. Bifunctional diatomic site catalysts supported by β 12-borophene for efficient oxygen evolution and reduction reactions. Phys Chem Chem Phys 2023; 26:594-601. [PMID: 38086640 DOI: 10.1039/d3cp04543a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Efficient bifunctional catalysts for oxygen evolution and reduction reactions (OERs/ORRs) are of great importance for sustainable and renewable clean energy, especially for metal-air batteries. Herein, we investigated β12-borophene with double-hole sites capped with 3d transition metal atoms to explore its catalyst performance for hydrogen evolution reactions (HERs), OERs and ORRs. It was found that the borophene is a good platform for diatomic site catalysts (DASCs) due to their advantage of stability over the corresponding single-atom catalysts (SACs) or clusters. The HER performance of DASCs on β12-BM was further improved compared to the SAC case. Furthermore, the supported FeNi DASC exhibited good catalytic performance for both OERs and ORRs, the overpotentials for which were 0.43 and 0.55 V, respectively, better than those of the corresponding supported Ni or Fe SAC due to synergistic effects. We herein propose a novel descriptor involving the Bader charges of coordinated atoms explicitly, behaving much better than the d-band center and integrated crystal orbital Hamilton population (-ICOHP) for DASCs. The synergistic effect of Fe-Ni pairs balanced the too strong binding of OH and further activated OH to achieve better catalytic performance. The results of this study can provide theoretical guidance for the design of efficient bifunctional electrocatalysts.
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Affiliation(s)
- Jia Liu
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
| | - Minjing Zhang
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
| | - Si-Dian Li
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
| | - Yuewen Mu
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
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36
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Li L, Wang Z, She X, Pan L, Xi C, Wang D, Yi J, Yang J. Ni-modified FeOOH integrated electrode by self-source corrosion of nickel foam for high-efficiency electrochemical water oxidation. J Colloid Interface Sci 2023; 652:789-797. [PMID: 37619258 DOI: 10.1016/j.jcis.2023.08.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/06/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
The construction and application of efficient iron oxyhydroxide (FeOOH) is still a challenge in the field of energy conversion. Here, a facile preparation method is developed by directly utilizing commercialized nickel foams (NF) as the nickel source and the supporting framework, as well as the ingenious use of etching effect originating from acidic medium in the process of iron salt hydrolysis. As a result, a Ni-modulated FeOOH integrated electrode (Ni-FeOOH/NF) is obtained. Unexpectedly, the implementation of our scheme effectively activates the catalytic intrinsic activity of FeOOH, successfully transforming the inert NF into an integrated electrode with high oxygen evolution reaction (OER) performance. Specifically, the Ni-FeOOH/NF exhibits the overpotential of 277 mV (@100 mA cm-2) and superior stability for OER. Additionally, the as-prepared Ni-FeOOH/NF electrode could also operate steadily for OER in alkaline adjusted saline water. Our research provides a new idea for the preparation of satisfactory Fe-based metal materials as OER electrocatalysts.
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Affiliation(s)
- Li Li
- Analysis and Testing Center, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Zhaolong Wang
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaojie She
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Li Pan
- Analysis and Testing Center, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Chunyan Xi
- Analysis and Testing Center, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Dan Wang
- Analysis and Testing Center, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jianjian Yi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Juan Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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37
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Wang L, Su H, Zhang Z, Xin J, Liu H, Wang X, Yang C, Liang X, Wang S, Liu H, Yin Y, Zhang T, Tian Y, Li Y, Liu Q, Sun X, Sun J, Wang D, Li Y. Co-Co Dinuclear Active Sites Dispersed on Zirconium-doped Heterostructured Co 9 S 8 /Co 3 O 4 for High-current-density and Durable Acidic Oxygen Evolution. Angew Chem Int Ed Engl 2023; 62:e202314185. [PMID: 37858292 DOI: 10.1002/anie.202314185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023]
Abstract
Developing cost-effective and sustainable acidic water oxidation catalysts requires significant advances in material design and in-depth mechanism understanding for proton exchange membrane water electrolysis. Herein, we developed a single atom regulatory strategy to construct Co-Co dinuclear active sites (DASs) catalysts that atomically dispersed zirconium doped Co9 S8 /Co3 O4 heterostructure. The X-ray absorption fine structure elucidated the incorporation of Zr greatly facilitated the generation of Co-Co DASs layer with stretching of cobalt oxygen bond and S-Co-O heterogeneous grain boundaries interfaces, engineering attractive activity of significantly reduced overpotential of 75 mV at 10 mA cm-2 , a breakthrough of 500 mA cm-2 high current density, and water splitting stability of 500 hours in acid, making it one of the best-performing acid-stable OER non-noble metal materials. The optimized catalyst with interatomic Co-Co distance (ca. 2.80 Å) followed oxo-oxo coupling mechanism that involved obvious oxygen bridges on dinuclear Co sites (1,090 cm-1 ), confirmed by in situ SR-FTIR, XAFS and theoretical simulations. Furthermore, a major breakthrough of 120,000 mA g-1 high mass current density using the first reported noble metal-free cobalt anode catalyst of Co-Co DASs/ZCC in PEM-WE at 2.14 V was recorded.
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Affiliation(s)
- Ligang Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Hui Su
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, P. R. China
| | - Zhuang Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Junjie Xin
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, P. R. China
| | - Hai Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoge Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, P. R. China
| | - Chenyu Yang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Xiao Liang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Shunwu Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Huan Liu
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yanfei Yin
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, P. R. China
| | - Taiyan Zhang
- Department of Chemistry, Analytical Instrumentation Center, Capital Normal University, Beijing, 100048, P. R. China
| | - Yang Tian
- Department of Chemistry, Analytical Instrumentation Center, Capital Normal University, Beijing, 100048, P. R. China
| | - Yaping Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Qinghua Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing National Laboratory for Molecular Sciences (BNLMS), 5 Yiheyuan Road, Beijing, 100871, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
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Jia H, Yao N, Yu C, Cong H, Luo W. Unveiling the Electrolyte Cations Dependent Kinetics on CoOOH-Catalyzed Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2023; 62:e202313886. [PMID: 37864480 DOI: 10.1002/anie.202313886] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 10/23/2023]
Abstract
The electrolyte cations-dependent kinetics have been widely observed in many fields of electrocatalysis, however, the exact mechanism of the influence on catalytic performance is still a controversial topic of considerable discussion. Herein, combined with operando X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM), we verify that the electrolyte cations could intercalate into the layer of pristine CoOOH catalyst during the oxygen evolution reaction (OER) process, while the bigger cations lead to enlarged interlayer spacing and increased OER activity, following the order Cs+ >K+ >Na+ >Li+ . X-ray absorption spectroscopy (XAS), in situ Raman, in situ Ultraviolet-visible (UV/Vis) spectroscopy, in situ XAS spectroscopy, cyclic voltammetry (CV), and theoretical calculations reveal that the intercalation of electrolyte cations efficiently modify the oxidation states of Co by enlarging the Co-O bonds, which in turn enhance the d-band center of Co, optimize the adsorption strength of oxygen intermediates, facilitate the formation of OER active Co(IV) species, and reduce the energy barrier of the rate-determing step (RDS), thereby enhancing the OER activity. This work not only provides an informative picture to understand the complicated dependence of OER kinetics on electrolyte cations, but also sheds light on understanding the mechanism of other electrolyte cation-targeted electrocatalysis.
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Affiliation(s)
- Hongnan Jia
- College of Chemistry and Molecular Sciences, Wuhan University Hubei, 430072, Wuhan, P. R. China
| | - Na Yao
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University Hubei, 430073, Wuhan, P. R. China
| | - Can Yu
- Institute of High Energy Physics, Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Hengjiang Cong
- 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
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Yang C, Gao Y, Ma T, Bai M, He C, Ren X, Luo X, Wu C, Li S, Cheng C. Metal Alloys-Structured Electrocatalysts: Metal-Metal Interactions, Coordination Microenvironments, and Structural Property-Reactivity Relationships. Adv Mater 2023; 35:e2301836. [PMID: 37089082 DOI: 10.1002/adma.202301836] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Metal alloys-structured electrocatalysts (MAECs) have made essential contributions to accelerating the practical applications of electrocatalytic devices in renewable energy systems. However, due to the complex atomic structures, varied electronic states, and abundant supports, precisely decoding the metal-metal interactions and structure-activity relationships of MAECs still confronts great challenges, which is critical to direct the future engineering and optimization of MAECs. Here, this timely review comprehensively summarizes the latest advances in creating the MAECs, including the metal-metal interactions, coordination microenvironments, and structure-activity relationships. First, the fundamental classification, design, characterization, and structural reconstruction of MAECs are outlined. Then, the electrocatalytic merits and modulation strategies of recent breakthroughs for noble and non-noble metal-structured MAECs are thoroughly discussed, such as solid solution alloys, intermetallic alloys, and single-atom alloys. Particularly, unique insights into the bond interactions, theoretical understanding, and operando techniques for mechanism disclosure are given. Thereafter, the current states of diverse MAECs with a unique focus on structural property-reactivity relationships, reaction pathways, and performance comparisons are discussed. Finally, the future challenges and perspectives for MAECs are systematically discussed. It is believed that this comprehensive review can offer a substantial impact on stimulating the widespread utilization of metal alloys-structured materials in electrocatalysis.
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Affiliation(s)
- Chengdong Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yun Gao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Tian Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Mingru Bai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chao He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Physics, Chemistry, and Pharmacy, Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Campusvej 55, Odense, 5230, Denmark
| | - Xiancheng Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xianglin Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Changzhu Wu
- Department of Physics, Chemistry, and Pharmacy, Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Campusvej 55, Odense, 5230, Denmark
| | - Shuang Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Chemistry, Technical University of Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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Tamboli AM, Jung Y, Sim J, Kim B, Kim WS, Kim M, Lee C, Kim K, Lim C, Kim K, Cho HS, Kim CH. Boosting oxygen evolution reaction activity with Mo incorporated NiFe-LDH electrocatalyst for efficient water electrolysis. Chemosphere 2023; 344:140314. [PMID: 37769914 DOI: 10.1016/j.chemosphere.2023.140314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
This work demonstrates a simple and scalable methodology for the binder-free direct growth of Mo-doped NiFe-layered double hydroxides on a nickel substrate via an electrodeposition route at room temperature. A three-dimensional (3D) nanosheet array morphology of the electrocatalyst provides immense electrochemical surface area as well as abundant catalytically active sites. Mo incorporation in the NiFe-LDH plays a crucial role in regulating the catalytic activity of oxygen evolution reaction (OER). The prepared electrocatalyst exhibited low overpotential (i.e., 230 mV) at 30 mA cm-2 for OER in an alkaline electrolyte (i.e., 1 M KOH). Furthermore, the optimized Mo-doped NiFe-LDH electrode was used as an anode in a laboratory-scale in situ single cell test system for alkaline water electrolysis at 80 °C with a continuous flow of 30 wt% KOH, and it shows the efficient electrochemical performance with a lower cell voltage of 1.80 V at a current density of 400 mA cm-2. In addition, an admirable long-term cell durability is also demonstrated by the cell for 24 h. This work encourages new designs and further development of electrode material for alkaline water electrolysis on a commercial scale.
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Affiliation(s)
- Asiya M Tamboli
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea
| | - Younghan Jung
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea
| | - Junseok Sim
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea
| | - Bonghyun Kim
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea
| | - Wan Sik Kim
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea
| | - MinJoong Kim
- Hydrogen Research Department, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Changsoo Lee
- Hydrogen Research Department, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Kilwon Kim
- Korea Research Institute of Ships and Ocean Engineering, 32, Yuseong-daero 1312 beon-gil, Yuseong-gu, Daejeon, Republic of Korea
| | - ChangHyuck Lim
- Korea Research Institute of Ships and Ocean Engineering, 32, Yuseong-daero 1312 beon-gil, Yuseong-gu, Daejeon, Republic of Korea
| | - KyongHwan Kim
- Korea Research Institute of Ships and Ocean Engineering, 32, Yuseong-daero 1312 beon-gil, Yuseong-gu, Daejeon, Republic of Korea
| | - Hyun-Seok Cho
- Hydrogen Research Department, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea.
| | - Chang-Hee Kim
- School of Energy Technology, Hydrogen Energy, Korea Institute of Energy Technology, 21 KENTECH-gil, Naju-si, Jeonnam, 58330, Republic of Korea.
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Fan Z, Yang Q, Zhang W, Wen H, Yuan H, He J, Yang HG, Chen Z. Self-Reconstruction of Sulfate-Terminated Copper Oxide Nanorods for Efficient and Stable 5-Hydroxymethylfurfural Electrooxidation. Nano Lett 2023. [PMID: 38018816 DOI: 10.1021/acs.nanolett.3c03949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) has been regarded as a viable alternative to sustainable biomass valorization. However, the transformation of the catalysts under harsh electrooxidation conditions remains controversial. Herein, we confirm the self-construction of cuprous sulfide nanosheets (Cu2S NSs) into sulfate-terminated copper oxide nanorods (CuO-SO42- NRs) during the first-cycle of the HMFOR, which achieves a near-quantitative synthesis of 2,5-furandicarboxylic acid (FDCA) with a >99.9% yield and faradaic efficiency without deactivation in 15 successive cycles. Electrochemical impedance spectroscopies confirm that the surface SO42- effectively reduces the onset potential for HMFOR, while in situ Raman spectroscopies identify a reversible transformation from CuII-O to CuIII-OOH in HMFOR. Furthermore, density functional theory calculations reveal that the surface SO42- weakens the Cu-OH bonds in CuOOH to promote the rate-determining step of its coupling with the C atom in HMF-H* resulting from HMF hydrogenation, which synergistically enhances the catalytic activity of CuO-SO42- NRs toward HMF-to-FDCA conversion.
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Affiliation(s)
- Ziyi Fan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Qianqian Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, China
| | - Wenjun Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Huiming Wen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Haiyang Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, China
| | - Jing He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hua Gui Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, China
| | - Zupeng Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
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Abstract
High-entropy alloys (HEAs) comprising five or more elements in near-equiatomic proportions have attracted ever increasing attention for their distinctive properties, such as exceptional strength, corrosion resistance, high hardness, and excellent ductility. The presence of multiple adjacent elements in HEAs provides unique opportunities for novel and adaptable active sites. By carefully selecting the element configuration and composition, these active sites can be optimized for specific purposes. Recently, HEAs have been shown to exhibit remarkable performance in electrocatalytic reactions. Further activity improvement of HEAs is necessary to determine their active sites, investigate the interactions between constituent elements, and understand the reaction mechanisms. Accordingly, a comprehensive review is imperative to capture the advancements in this burgeoning field. In this review, we provide a detailed account of the recent advances in synthetic methods, design principles, and characterization technologies for HEA-based electrocatalysts. Moreover, we discuss the diverse applications of HEAs in electrocatalytic energy conversion reactions, including the hydrogen evolution reaction, hydrogen oxidation reaction, oxygen reduction reaction, oxygen evolution reaction, carbon dioxide reduction reaction, nitrogen reduction reaction, and alcohol oxidation reaction. By comprehensively covering these topics, we aim to elucidate the intricacies of active sites, constituent element interactions, and reaction mechanisms associated with HEAs. Finally, we underscore the imminent challenges and emphasize the significance of both experimental and theoretical perspectives, as well as the potential applications of HEAs in catalysis. We anticipate that this review will encourage further exploration and development of HEAs in electrochemistry-related applications.
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Affiliation(s)
- Jin-Tao Ren
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Lei Chen
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Hao-Yu Wang
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Zhong-Yong Yuan
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
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Cardenas-Morcoso D, Bansal D, Heiderscheid M, Audinot JN, Guillot J, Boscher ND. A Polymer-Derived Co(Fe)O x Oxygen Evolution Catalyst Benefiting from the Oxidative Dehydrogenative Coupling of Cobalt Porphyrins. ACS Catal 2023; 13:15182-15193. [PMID: 38026816 PMCID: PMC10660665 DOI: 10.1021/acscatal.3c02940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/11/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
Thin films of cobalt porphyrin conjugated polymers bearing different substituents are prepared by oxidative chemical vapor deposition (oCVD) and investigated as heterogeneous electrocatalysts for the oxygen evolution reaction (OER). Interestingly, the electrocatalytic activity originates from polymer-derived, highly transparent Co(Fe)Ox species formed under operational alkaline conditions. Structural, compositional, electrical, and electrochemical characterizations reveal that the newly formed active catalyst greatly benefited from both the polymeric conformation of the porphyrin-based thin film and the inclusion of the iron-based species originating from the oCVD reaction. High-resolution mass spectrometry analyses combined with density functional theory (DFT) calculations showed that a close relationship exists between the porphyrin substituent, the extension of the π-conjugated system cobalt porphyrin conjugated polymer, and the dynamics of the polymer conversion leading to catalytically active Co(Fe)Ox species. This work evidences the precatalytic role of cobalt porphyrin conjugated polymers and uncovers the benefit of extended π-conjugation of the molecular matrix and iron inclusion on the formation and performance of the true active catalyst.
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Affiliation(s)
- Drialys Cardenas-Morcoso
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
| | - Deepak Bansal
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
| | - Max Heiderscheid
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
| | - Jean-Nicolas Audinot
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
| | - Jérôme Guillot
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
| | - Nicolas D. Boscher
- Materials Research and Technology
Department, Luxembourg Institute of Science
and Technology, 28 Avenue des Hautes-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
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Kawashima K, Márquez RA, Smith LA, Vaidyula RR, Carrasco-Jaim OA, Wang Z, Son YJ, Cao CL, Mullins CB. A Review of Transition Metal Boride, Carbide, Pnictide, and Chalcogenide Water Oxidation Electrocatalysts. Chem Rev 2023. [PMID: 37967475 DOI: 10.1021/acs.chemrev.3c00005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Transition metal borides, carbides, pnictides, and chalcogenides (X-ides) have emerged as a class of materials for the oxygen evolution reaction (OER). Because of their high earth abundance, electrical conductivity, and OER performance, these electrocatalysts have the potential to enable the practical application of green energy conversion and storage. Under OER potentials, X-ide electrocatalysts demonstrate various degrees of oxidation resistance due to their differences in chemical composition, crystal structure, and morphology. Depending on their resistance to oxidation, these catalysts will fall into one of three post-OER electrocatalyst categories: fully oxidized oxide/(oxy)hydroxide material, partially oxidized core@shell structure, and unoxidized material. In the past ten years (from 2013 to 2022), over 890 peer-reviewed research papers have focused on X-ide OER electrocatalysts. Previous review papers have provided limited conclusions and have omitted the significance of "catalytically active sites/species/phases" in X-ide OER electrocatalysts. In this review, a comprehensive summary of (i) experimental parameters (e.g., substrates, electrocatalyst loading amounts, geometric overpotentials, Tafel slopes, etc.) and (ii) electrochemical stability tests and post-analyses in X-ide OER electrocatalyst publications from 2013 to 2022 is provided. Both mono and polyanion X-ides are discussed and classified with respect to their material transformation during the OER. Special analytical techniques employed to study X-ide reconstruction are also evaluated. Additionally, future challenges and questions yet to be answered are provided in each section. This review aims to provide researchers with a toolkit to approach X-ide OER electrocatalyst research and to showcase necessary avenues for future investigation.
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Affiliation(s)
- Kenta Kawashima
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Raúl A Márquez
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Lettie A Smith
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Rinish Reddy Vaidyula
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Omar A Carrasco-Jaim
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ziqing Wang
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yoon Jun Son
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Chi L Cao
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - C Buddie Mullins
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Center for Electrochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- H2@UT, The University of Texas at Austin, Austin, Texas 78712, United States
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Liu J, Yu Z, Huang J, Yao S, Jiang R, Hou Y, Tang W, Sun P, Huang H, Wang M. Redox-active ligands enhance oxygen evolution reaction activity: Regulating the spin state of ferric ions and accelerating electron transfer. J Colloid Interface Sci 2023; 650:1182-1192. [PMID: 37478735 DOI: 10.1016/j.jcis.2023.07.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/27/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023]
Abstract
Metal-organic frameworks (MOFs) are considered as one of the most promising catalysts for oxygen evolution reaction (OER). However, only a few have introduced redox-active ligands into MOFs and explored their role in the OER process. In this work, we synthesized FeNi DHBQ/NF using the redox-active ligand 2,5-dihydroxy-1,4-benzoquinone (DHBQ), which exhibited excellent redox activity and required only 207 and 242 mV overpotentials to achieve current densities of 10 and 100 mA cm-2. Our research confirms that (i) the doping of Fe leads to the formation of Ni → O → Fe electron transfer channels in the MOFs and stronger electron transfer, attributed to the stronger d-π conjugation between the metal center and the ligand and reduced the d-orbital crystal field splitting energy of Fe3+; (ii) the rate determination step (RDS) in the OER process of the catalyst is the formation of O*, while Fe and redox-active ligands effectively regulate the adsorption energy of oxygen-containing intermediates, reducing the energy barrier of the RDS; (iii) the redox-active ligands can act as "electron reservoirs" in the electrochemical process, making Ni more readily oxidized to Ni3+ or even Ni4+ at low potentials, which is beneficial to the subsequent OER process.
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Affiliation(s)
- Jing Liu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China.
| | - Jun Huang
- School of Civil Engineering and Architecture, Guangxi Minzu University, Nanning 530004, PR China
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China
| | - Ronghua Jiang
- School of Chemical and Environmental Engineering, Shaoguan University, Shaoguan 512005, PR China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Wenjun Tang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Pengxin Sun
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Hongcheng Huang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| | - Mengqi Wang
- College of Computer Science and Technology, Shandong University of Technology, Zibo 255090, PR China
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Yun Q, Ge Y, Shi Z, Liu J, Wang X, Zhang A, Huang B, Yao Y, Luo Q, Zhai L, Ge J, Peng Y, Gong C, Zhao M, Qin Y, Ma C, Wang G, Wa Q, Zhou X, Li Z, Li S, Zhai W, Yang H, Ren Y, Wang Y, Li L, Ruan X, Wu Y, Chen B, Lu Q, Lai Z, He Q, Huang X, Chen Y, Zhang H. Recent Progress on Phase Engineering of Nanomaterials. Chem Rev 2023. [PMID: 37962496 DOI: 10.1021/acs.chemrev.3c00459] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
As a key structural parameter, phase depicts the arrangement of atoms in materials. Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the development of nanotechnology, nanomaterials with unconventional crystal phases, which rarely exist in their bulk counterparts, or amorphous phase have been prepared using carefully controlled reaction conditions. Together these methods are beginning to enable phase engineering of nanomaterials (PEN), i.e., the synthesis of nanomaterials with unconventional phases and the transformation between different phases, to obtain desired properties and functions. This Review summarizes the research progress in the field of PEN. First, we present representative strategies for the direct synthesis of unconventional phases and modulation of phase transformation in diverse kinds of nanomaterials. We cover the synthesis of nanomaterials ranging from metal nanostructures such as Au, Ag, Cu, Pd, and Ru, and their alloys; metal oxides, borides, and carbides; to transition metal dichalcogenides (TMDs) and 2D layered materials. We review synthesis and growth methods ranging from wet-chemical reduction and seed-mediated epitaxial growth to chemical vapor deposition (CVD), high pressure phase transformation, and electron and ion-beam irradiation. After that, we summarize the significant influence of phase on the various properties of unconventional-phase nanomaterials. We also discuss the potential applications of the developed unconventional-phase nanomaterials in different areas including catalysis, electrochemical energy storage (batteries and supercapacitors), solar cells, optoelectronics, and sensing. Finally, we discuss existing challenges and future research directions in PEN.
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Affiliation(s)
- Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Department of Chemical and Biological Engineering & Energy Institute, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yiyao Ge
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Jiawei Liu
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), Singapore, 627833, Singapore
| | - Xixi Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Biao Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Yao Yao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Qinxin Luo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Jingjie Ge
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
| | - Yongwu Peng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chengtao Gong
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meiting Zhao
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Yutian Qin
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Chen Ma
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Gang Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Qingbo Wa
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xichen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Zijian Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Siyuan Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wei Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Hua Yang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yi Ren
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yongji Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Lujing Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xinyang Ruan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yuxuan Wu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Bo Chen
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, School of Chemistry and Life Sciences, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhuangchai Lai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Xiao Huang
- Institute of Advanced Materials (IAM), School of Flexible Electronics (SoFE), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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47
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Yan Y, Lin J, Huang K, Zheng X, Qiao L, Liu S, Cao J, Jun SC, Yamauchi Y, Qi J. Tensile Strain-Mediated Spinel Ferrites Enable Superior Oxygen Evolution Activity. J Am Chem Soc 2023; 145:24218-24229. [PMID: 37874900 DOI: 10.1021/jacs.3c08598] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Exploring efficient strategies to overcome the performance constraints of oxygen evolution reaction (OER) electrocatalysts is vital for electrocatalytic applications such as H2O splitting, CO2 reduction, N2 reduction, etc. Herein, tunable, wide-range strain engineering of spinel oxides, such as NiFe2O4, is proposed to enhance the OER activity. The lattice strain is regulated by interfacial thermal mismatch during the bonding process between thermally expanding NiFe2O4 nanoparticles and the nonexpanding carbon fiber substrate. The tensile lattice strain causes energy bands to flatten near the Fermi level, lowering eg orbital occupancy, effectively increasing the number of electronic states near the Fermi level, and reducing the pseudoenergy gap. Consequently, the energy barrier of the rate-determining step for strained NiFe2O4 is reduced, achieving a low overpotential of 180 mV at 10 mA/cm2. A total water decomposition voltage range of 1.52-1.56 V at 10 mA/cm2 (without iR correction) was achieved in an asymmetric alkaline electrolytic cell with strained NiFe2O4 nanoparticles, and its robust stability was verified with a voltage retention of approximately 99.4% after 100 h. Furthermore, the current work demonstrates the universality of tuning OER performance with other spinel ferrite systems, including cobalt, manganese, and zinc ferrites.
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Affiliation(s)
- Yaotian Yan
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Jinghuang Lin
- Institute of Applied Physics and Materials Engineering (IAPME), University of Macau, Taipa, 999078, China
| | - Keke Huang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Xiaohang Zheng
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Liang Qiao
- Key Laboratory of Materials Design and Quantum Simulation, College of Science, Changchun University, Changchun, 130022, China
| | - Shude Liu
- College of Textiles, Donghua University, Shanghai, 201620, China
| | - Jian Cao
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Seong Chan Jun
- School of Mechanical Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Yusuke Yamauchi
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Junlei Qi
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
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48
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Kumar RS, Mannu P, Prabhakaran S, Nga TTT, Kim Y, Kim DH, Chen J, Dong C, Yoo DJ. Trimetallic Oxide Electrocatalyst for Enhanced Redox Activity in Zinc-Air Batteries Evaluated by In Situ Analysis. Adv Sci (Weinh) 2023; 10:e2303525. [PMID: 37786295 PMCID: PMC10646265 DOI: 10.1002/advs.202303525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/22/2023] [Indexed: 10/04/2023]
Abstract
Researchers are investigating innovative composite materials for renewable energy and energy storage systems. The major goals of this studies are i) to develop a low-cost and stable trimetallic oxide catalyst and ii) to change the electrical environment of the active sites through site-selective Mo substitution. The effect of Mo on NiCoMoO4 is elucidated using both in situ X-ray absorption spectroscopy and X-ray diffraction analysis. Also, density functional theory strategies show that NiCoMoO4 has extraordinary catalytic redox activity because of the high adsorption energy of the Mo atom on the active crystal plane. Further, it is demonstrated that hierarchical nanoflower structures of NiCoMoO4 on reduced graphene oxide can be employed as a powerful bifunctional electrocatalyst for oxygen reduction/evolution reactions in alkaline solutions, providing a small overpotential difference of 0.75 V. Also, Zn-air batteries based on the developed bifunctional electrocatalyst exhibit outstanding cycling stability and a high-power density of 125.1 mW cm-2 . This work encourages the use of Zn-air batteries in practical applications and provides an interesting concept for designing a bifunctional electrocatalyst.
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Affiliation(s)
- Ramasamy Santhosh Kumar
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR)Hydrogen and Fuel Cell Research CenterJeonbuk National UniversityJeonjuJeollabuk‐do54896Republic of Korea
| | - Pandian Mannu
- Research Center for X‐ray ScienceDepartment of PhysicsTamkang UniversityTamsui25137Taiwan
| | - Sampath Prabhakaran
- Department of Nano Convergence EngineeringJeonbuk National UniversityJeonjuJeonbuk54896Republic of Korea
| | - Ta Thi Thuy Nga
- Research Center for X‐ray ScienceDepartment of PhysicsTamkang UniversityTamsui25137Taiwan
| | - Yangsoo Kim
- Korea Basic Science InstituteJeonju CenterJeonju‐siJeollabuk‐do54896Republic of Korea
| | - Do Hwan Kim
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR)Hydrogen and Fuel Cell Research CenterJeonbuk National UniversityJeonjuJeollabuk‐do54896Republic of Korea
- Division of Science Education and Institute of Fusion ScienceJeonbuk National UniversityJeonjuJeollabuk‐do54896Republic of Korea
| | - Jeng‐Lung Chen
- National Synchrotron Radiation Research CenterHsinchu30076Taiwan
| | - Chung‐Li Dong
- Research Center for X‐ray ScienceDepartment of PhysicsTamkang UniversityTamsui25137Taiwan
| | - Dong Jin Yoo
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR)Hydrogen and Fuel Cell Research CenterJeonbuk National UniversityJeonjuJeollabuk‐do54896Republic of Korea
- Department of Life ScienceJeonbuk National UniversityJeonju‐siJeollabuk‐do54896Republic of Korea
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49
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Huang CJ, Xu HM, Shuai TY, Zhan QN, Zhang ZJ, Li GR. Modulation Strategies for the Preparation of High-Performance Catalysts for Urea Oxidation Reaction and Their Applications. Small 2023; 19:e2301130. [PMID: 37434036 DOI: 10.1002/smll.202301130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 07/02/2023] [Indexed: 07/13/2023]
Abstract
Compared with the traditional electrolysis of water to produce hydrogen, urea-assisted electrolysis of water to produce hydrogen has significant advantages and has received extensive attention from researchers. Unfortunately, urea oxidation reaction (UOR) involves a complex six-electron transfer process leading to high overpotential, which forces researchers to develop high-performance UOR catalysts to drive the development of urea-assisted water splitting. Based on the UOR mechanism and extensive literature research, this review summarizes the strategies for preparing highly efficient UOR catalysts. First, the UOR mechanism is introduced and the characteristics of excellent UOR catalysts are pointed out. Aiming at this, the following modulation strategies are proposed to improve the catalytic performance based on summarizing various literature: 1) Accelerating the active phase formation to reduce initial potential; 2) Creating double active sites to trigger a new UOR mechanism; 3) Accelerating urea adsorption and promoting C─N bond cleavage to ensure the effective conduct of UOR; 4) Promoting the desorption of CO2 to improve stability and prevent catalyst poisoning; 5) Promoting electron transfer to overcome the inherent slow dynamics of UOR; 6) Increasing active sites or active surface area. Then, the application of UOR in electrochemical devices is summarized. Finally, the current deficiencies and future directions are discussed.
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Affiliation(s)
- Chen-Jin Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Hui-Min Xu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Ting-Yu Shuai
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Qi-Ni Zhan
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhi-Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Gao-Ren Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
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50
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Kuang J, Li Z, Li W, Chen C, La M, Hao Y. Achieving High Activity and Long-Term Stability towards Oxygen Evolution in Acid by Phase Coupling between CeO 2-Ir. Materials (Basel) 2023; 16:7000. [PMID: 37959597 PMCID: PMC10650327 DOI: 10.3390/ma16217000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
The development of efficient and stable catalysts with high mass activity is crucial for acidic oxygen evolution reaction (OER). In this study, CeO2-Ir heterojunctions supported on carbon nanotubes (CeO2-Ir/CNTs) are synthesized using a solvothermal method based on the heterostructure strategy. CeO2-Ir/CNTs demonstrate remarkable effectiveness as catalysts for acidic OER, achieving 10.0 mA cm-2 at a low overpotential of only 262.9 mV and maintaining stability over 60.0 h. Notably, despite using an Ir dosage 15.3 times lower than that of c-IrO2, CeO2-Ir/CNTs exhibit a very high mass activity (2542.3 A gIr-1@1.53 V), which is 58.8 times higher than that of c-IrO2. When applied to acidic water electrolyzes, CeO2-Ir/CNTs display a prosperous potential for application as anodic catalysts. X-ray photoelectron spectrometer (XPS) analysis reveals that the chemical environment of Ir nanoparticles (NP) can be effectively modulated through coupling with CeO2. This modulation is believed to be the key factor contributing to the excellent OER catalytic activity and stability observed in CeO2-Ir/CNTs.
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Affiliation(s)
- Jianren Kuang
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (J.K.); (Z.L.)
| | - Zhi Li
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (J.K.); (Z.L.)
| | - Weiqiang Li
- College of Electric and Information Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Changdong Chen
- College of Chemistry and Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Ming La
- College of Chemistry and Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Yajuan Hao
- College of Electric and Information Engineering, Pingdingshan University, Pingdingshan 467000, China;
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