Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers
The exploration of high-performance, low-cost, and dual-function electrodes is crucial for anion exchange membrane water electrolysis (AEMWE) to meet the relentless demand for green H<sub>2</sub> production. In this study, a heteroatom-doped carbon-cage-supported CoSe<sub>2</sub...
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MDPI AG
2025-05-01
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| author | Zhongmin Wan Zhongkai Huang Changjie Ou Lihua Wang Xiangzhong Kong Zizhang Zhan Tian Tian Haolin Tang Shu Xie Yongguang Luo |
| author_facet | Zhongmin Wan Zhongkai Huang Changjie Ou Lihua Wang Xiangzhong Kong Zizhang Zhan Tian Tian Haolin Tang Shu Xie Yongguang Luo |
| author_sort | Zhongmin Wan |
| collection | DOAJ |
| description | The exploration of high-performance, low-cost, and dual-function electrodes is crucial for anion exchange membrane water electrolysis (AEMWE) to meet the relentless demand for green H<sub>2</sub> production. In this study, a heteroatom-doped carbon-cage-supported CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC catalyst with a formicarium structure has been fabricated using a scalable one-step selenization strategy. The component-refined bifunctional catalyst exhibited minimal overpotential values of 116 mV and 283 mV at 10 mA cm<sup>−2</sup> in 1 M KOH for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), respectively. Specifically, rationally designed heterostructures and flexible carbonaceous sponges facilitate interfacial reaction equalization, modulate local electronic distributions, and establish efficient electron transport pathways, thereby enhancing catalytic activity and durability. Furthermore, the assembled AEMWE based on the CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC bifunctional catalysts can achieve a current density of 106 mA cm<sup>−2</sup> at 1.9 V and maintain a favorable durability after running for 100 h (a retention of 95%). This work highlights a new insight into the development of advanced bifunctional catalysts with enhanced activity and durability for AEMWE. |
| format | Article |
| id | doaj-art-52cc091bf9a941f289a503adcb9df1f0 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-52cc091bf9a941f289a503adcb9df1f02025-08-20T03:14:35ZengMDPI AGMolecules1420-30492025-05-013010208710.3390/molecules30102087Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane ElectrolyzersZhongmin Wan0Zhongkai Huang1Changjie Ou2Lihua Wang3Xiangzhong Kong4Zizhang Zhan5Tian Tian6Haolin Tang7Shu Xie8Yongguang Luo9College of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaCollege of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaCollege of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaCollege of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaCollege of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaCollege of Mechanical Engineering, School of Energy and Electrical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaC•HySA Technology (Hunan) Company Limited, Zhuzhou 412007, ChinaC•HySA Technology (Hunan) Company Limited, Zhuzhou 412007, ChinaThe exploration of high-performance, low-cost, and dual-function electrodes is crucial for anion exchange membrane water electrolysis (AEMWE) to meet the relentless demand for green H<sub>2</sub> production. In this study, a heteroatom-doped carbon-cage-supported CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC catalyst with a formicarium structure has been fabricated using a scalable one-step selenization strategy. The component-refined bifunctional catalyst exhibited minimal overpotential values of 116 mV and 283 mV at 10 mA cm<sup>−2</sup> in 1 M KOH for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), respectively. Specifically, rationally designed heterostructures and flexible carbonaceous sponges facilitate interfacial reaction equalization, modulate local electronic distributions, and establish efficient electron transport pathways, thereby enhancing catalytic activity and durability. Furthermore, the assembled AEMWE based on the CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC bifunctional catalysts can achieve a current density of 106 mA cm<sup>−2</sup> at 1.9 V and maintain a favorable durability after running for 100 h (a retention of 95%). This work highlights a new insight into the development of advanced bifunctional catalysts with enhanced activity and durability for AEMWE.https://www.mdpi.com/1420-3049/30/10/2087CoSe<sub>2</sub>@MoSe<sub>2</sub>@NCformicariumheteroatom dopingcatalytic activityanion exchange membrane water electrolysis |
| spellingShingle | Zhongmin Wan Zhongkai Huang Changjie Ou Lihua Wang Xiangzhong Kong Zizhang Zhan Tian Tian Haolin Tang Shu Xie Yongguang Luo Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers Molecules CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC formicarium heteroatom doping catalytic activity anion exchange membrane water electrolysis |
| title | Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers |
| title_full | Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers |
| title_fullStr | Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers |
| title_full_unstemmed | Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers |
| title_short | Formicarium-Inspired Hierarchical Conductive Architecture for CoSe<sub>2</sub>@MoSe<sub>2</sub> Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers |
| title_sort | formicarium inspired hierarchical conductive architecture for cose sub 2 sub mose sub 2 sub catalysts towards advanced anion exchange membrane electrolyzers |
| topic | CoSe<sub>2</sub>@MoSe<sub>2</sub>@NC formicarium heteroatom doping catalytic activity anion exchange membrane water electrolysis |
| url | https://www.mdpi.com/1420-3049/30/10/2087 |
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