Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction
Hydrogen evolution reaction (HER) has a dominant function in energy conversion and storage because it supplies a most effective way for converting electricity into sustainable high-purity hydrogen. Layered double hydroxides (LDHs) have shown promising performance in the process of electrochemical wa...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/7/1227 |
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| author | Jun-Jun Zhang Meng-Yang Li Xiang Li Wei-Wei Bao Chang-Qing Jin Xiao-Hua Feng Ge Liu Chun-Ming Yang Nan-Nan Zhang |
| author_facet | Jun-Jun Zhang Meng-Yang Li Xiang Li Wei-Wei Bao Chang-Qing Jin Xiao-Hua Feng Ge Liu Chun-Ming Yang Nan-Nan Zhang |
| author_sort | Jun-Jun Zhang |
| collection | DOAJ |
| description | Hydrogen evolution reaction (HER) has a dominant function in energy conversion and storage because it supplies a most effective way for converting electricity into sustainable high-purity hydrogen. Layered double hydroxides (LDHs) have shown promising performance in the process of electrochemical water oxidation (a half-reaction for water splitting). Nevertheless, HER properties have not been well released due to the structural characteristics of related materials. Herein, a simple and scalable tactics is developed to synthesize chromium-doped CoFe LDH (CoFeCr LDH). Thanks to oxygen vacancy, optimized electronic structure and interconnected array hierarchical structure, our developed ternary CoFeCr-based layered double hydroxide catalysts can provide 10 mA cm<sup>−2</sup> current density at −0.201 V vs. RHE with superior long-term stability in alkaline electrolyte. We anticipate that the simple but feasible polymetallic electronic modulation strategy can strengthen the electrocatalytic property of the layered double hydroxides established in the present study, based on a carbon neutral and hydrogen economy. |
| first_indexed | 2024-03-09T11:33:40Z |
| format | Article |
| id | doaj.art-8d94bd58e90b4bca8bd4547a30f4a3e5 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:33:40Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-8d94bd58e90b4bca8bd4547a30f4a3e52023-11-30T23:46:19ZengMDPI AGNanomaterials2079-49912022-04-01127122710.3390/nano12071227Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution ReactionJun-Jun Zhang0Meng-Yang Li1Xiang Li2Wei-Wei Bao3Chang-Qing Jin4Xiao-Hua Feng5Ge Liu6Chun-Ming Yang7Nan-Nan Zhang8Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaShaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaShaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaNational & Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, School of Material Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, ChinaShaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaShaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaShaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, ChinaShaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry & Chemical Engineering, Yan’an University, Yan’an 716000, ChinaInstrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, ChinaHydrogen evolution reaction (HER) has a dominant function in energy conversion and storage because it supplies a most effective way for converting electricity into sustainable high-purity hydrogen. Layered double hydroxides (LDHs) have shown promising performance in the process of electrochemical water oxidation (a half-reaction for water splitting). Nevertheless, HER properties have not been well released due to the structural characteristics of related materials. Herein, a simple and scalable tactics is developed to synthesize chromium-doped CoFe LDH (CoFeCr LDH). Thanks to oxygen vacancy, optimized electronic structure and interconnected array hierarchical structure, our developed ternary CoFeCr-based layered double hydroxide catalysts can provide 10 mA cm<sup>−2</sup> current density at −0.201 V vs. RHE with superior long-term stability in alkaline electrolyte. We anticipate that the simple but feasible polymetallic electronic modulation strategy can strengthen the electrocatalytic property of the layered double hydroxides established in the present study, based on a carbon neutral and hydrogen economy.https://www.mdpi.com/2079-4991/12/7/1227chromium-modifiedhydrogen evolution reactionfree-standinglayered double hydroxideselectron transfer |
| spellingShingle | Jun-Jun Zhang Meng-Yang Li Xiang Li Wei-Wei Bao Chang-Qing Jin Xiao-Hua Feng Ge Liu Chun-Ming Yang Nan-Nan Zhang Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction Nanomaterials chromium-modified hydrogen evolution reaction free-standing layered double hydroxides electron transfer |
| title | Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction |
| title_full | Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction |
| title_fullStr | Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction |
| title_full_unstemmed | Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction |
| title_short | Chromium-Modified Ultrathin CoFe LDH as High-Efficiency Electrode for Hydrogen Evolution Reaction |
| title_sort | chromium modified ultrathin cofe ldh as high efficiency electrode for hydrogen evolution reaction |
| topic | chromium-modified hydrogen evolution reaction free-standing layered double hydroxides electron transfer |
| url | https://www.mdpi.com/2079-4991/12/7/1227 |
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