Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction
Abstract Developing an economical, durable, and efficient electrode that performs well at high current densities and is capable of satisfying large‐scale electrochemical hydrogen production is highly demanded. A self‐supported electrocatalytic “Pt‐like” WC porous electrode with open finger‐like hole...
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| Format: | Article |
| Language: | English |
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Wiley
2022-05-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202106029 |
| _version_ | 1818551527643545600 |
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| author | Feihong Wang Yutong Wu Binbin Dong Kai Lv Yangyang Shi Nianwang Ke Luyuan Hao Liangjun Yin Yu Bai Xin Xu Yuxi Xian Simeon Agathopoulos |
| author_facet | Feihong Wang Yutong Wu Binbin Dong Kai Lv Yangyang Shi Nianwang Ke Luyuan Hao Liangjun Yin Yu Bai Xin Xu Yuxi Xian Simeon Agathopoulos |
| author_sort | Feihong Wang |
| collection | DOAJ |
| description | Abstract Developing an economical, durable, and efficient electrode that performs well at high current densities and is capable of satisfying large‐scale electrochemical hydrogen production is highly demanded. A self‐supported electrocatalytic “Pt‐like” WC porous electrode with open finger‐like holes is produced through industrial processes, and a tightly bonded nitrogen‐doped WC/W (WC‐N/W) heterostructure is formed in situ on the WC grains. The obtained WC‐N/W electrode manifests excellent durability and stability under multi‐step current density in the range of 30–1000 mA cm−2 for more than 220 h in both acidic and alkaline media. Although WC is three orders of magnitude cheaper than Pt, the produced electrode demonstrates comparable hydrogen evolution reaction performance to the Pt electrode at high current density. Density functional theory calculations attribute its superior performance to the electrode structure and the modulated electronic structure at the WC‐N/W interface. |
| first_indexed | 2024-12-12T09:01:05Z |
| format | Article |
| id | doaj.art-ad2bc6bb71354eeca19333751debca34 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-12T09:01:05Z |
| publishDate | 2022-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-ad2bc6bb71354eeca19333751debca342022-12-22T00:29:50ZengWileyAdvanced Science2198-38442022-05-01915n/an/a10.1002/advs.202106029Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution ReactionFeihong Wang0Yutong Wu1Binbin Dong2Kai Lv3Yangyang Shi4Nianwang Ke5Luyuan Hao6Liangjun Yin7Yu Bai8Xin Xu9Yuxi Xian10Simeon Agathopoulos11CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaSchool of Materials Science and Engineering Henan Key Laboratory of Special Protective Materials Luoyang Institute of Science and Technology Luoyang Henan 471023 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaSchool of Energy Science and Engineering University of Electronic Science and Technology of China 2006 Xiyuan Road Chengdu PR ChinaSchool of Engineering Science University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaCAS Key Laboratory of Mechanical Behaviors and Design of Materials Department of Modern Mechanics University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaDepartment of Materials Science and Engineering University of Ioannina Ioannina GR‐451 10 GreeceAbstract Developing an economical, durable, and efficient electrode that performs well at high current densities and is capable of satisfying large‐scale electrochemical hydrogen production is highly demanded. A self‐supported electrocatalytic “Pt‐like” WC porous electrode with open finger‐like holes is produced through industrial processes, and a tightly bonded nitrogen‐doped WC/W (WC‐N/W) heterostructure is formed in situ on the WC grains. The obtained WC‐N/W electrode manifests excellent durability and stability under multi‐step current density in the range of 30–1000 mA cm−2 for more than 220 h in both acidic and alkaline media. Although WC is three orders of magnitude cheaper than Pt, the produced electrode demonstrates comparable hydrogen evolution reaction performance to the Pt electrode at high current density. Density functional theory calculations attribute its superior performance to the electrode structure and the modulated electronic structure at the WC‐N/W interface.https://doi.org/10.1002/advs.202106029electrocatalysthydrogen evolution reactionnitrogen‐doped WC/W heterostructureporous ceramic membraneself‐supported electrode |
| spellingShingle | Feihong Wang Yutong Wu Binbin Dong Kai Lv Yangyang Shi Nianwang Ke Luyuan Hao Liangjun Yin Yu Bai Xin Xu Yuxi Xian Simeon Agathopoulos Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction Advanced Science electrocatalyst hydrogen evolution reaction nitrogen‐doped WC/W heterostructure porous ceramic membrane self‐supported electrode |
| title | Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction |
| title_full | Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction |
| title_fullStr | Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction |
| title_full_unstemmed | Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction |
| title_short | Robust Porous WC‐Based Self‐Supported Ceramic Electrodes for High Current Density Hydrogen Evolution Reaction |
| title_sort | robust porous wc based self supported ceramic electrodes for high current density hydrogen evolution reaction |
| topic | electrocatalyst hydrogen evolution reaction nitrogen‐doped WC/W heterostructure porous ceramic membrane self‐supported electrode |
| url | https://doi.org/10.1002/advs.202106029 |
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