Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution
Abstract Constructing single‐atom catalysts (SACs) and optimizing the electronic structure between metal atoms and support interactions is deemed one of the most effective strategies for boosting the catalytic kinetics of the hydrogen evolution reaction (HER). Herein, a sulfur vacancy defect trappin...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409855 |
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| author | Min Xi Hua Zhang Lingfeng Yang Youyu Long Yifan Zhao Anran Chen Qiaozhi Xiao Tingting Liu Xuechun Xiao Guangzhi Hu |
| author_facet | Min Xi Hua Zhang Lingfeng Yang Youyu Long Yifan Zhao Anran Chen Qiaozhi Xiao Tingting Liu Xuechun Xiao Guangzhi Hu |
| author_sort | Min Xi |
| collection | DOAJ |
| description | Abstract Constructing single‐atom catalysts (SACs) and optimizing the electronic structure between metal atoms and support interactions is deemed one of the most effective strategies for boosting the catalytic kinetics of the hydrogen evolution reaction (HER). Herein, a sulfur vacancy defect trapping strategy is developed to anchor tungsten single atoms onto ultrathin V3S4 nanosheets with a high loading of 25.1 wt.%. The obtained W‐V3S4 catalyst exhibits a low overpotential of 54 mV at 10 mA cm−2 and excellent long‐term stability in alkaline electrolytes. Density functional theory calculations reveal that the in situ anchoring of W single atoms triggers the delocalization and redistribution of electron density, which effectively accelerates water dissociation and facilitates hydrogen adsorption/desorption, thus enhancing HER activity. This work provides valuable insights into understanding highly active single‐atom catalysts for large‐scale hydrogen production. |
| format | Article |
| id | doaj-art-dbb3b5baaca24ee6937b61fc0ced61f4 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-dbb3b5baaca24ee6937b61fc0ced61f42025-01-09T11:44:46ZengWileyAdvanced Science2198-38442025-01-01121n/an/a10.1002/advs.202409855Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen EvolutionMin Xi0Hua Zhang1Lingfeng Yang2Youyu Long3Yifan Zhao4Anran Chen5Qiaozhi Xiao6Tingting Liu7Xuechun Xiao8Guangzhi Hu9Yunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaInstitute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental Science Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices School of Materials and Energy Yunnan University Kunming 650091 ChinaAbstract Constructing single‐atom catalysts (SACs) and optimizing the electronic structure between metal atoms and support interactions is deemed one of the most effective strategies for boosting the catalytic kinetics of the hydrogen evolution reaction (HER). Herein, a sulfur vacancy defect trapping strategy is developed to anchor tungsten single atoms onto ultrathin V3S4 nanosheets with a high loading of 25.1 wt.%. The obtained W‐V3S4 catalyst exhibits a low overpotential of 54 mV at 10 mA cm−2 and excellent long‐term stability in alkaline electrolytes. Density functional theory calculations reveal that the in situ anchoring of W single atoms triggers the delocalization and redistribution of electron density, which effectively accelerates water dissociation and facilitates hydrogen adsorption/desorption, thus enhancing HER activity. This work provides valuable insights into understanding highly active single‐atom catalysts for large‐scale hydrogen production.https://doi.org/10.1002/advs.202409855electronic structurehydrogen evolution reactionsingle‐atom catalystsulfur vacancytransition metal sulfide |
| spellingShingle | Min Xi Hua Zhang Lingfeng Yang Youyu Long Yifan Zhao Anran Chen Qiaozhi Xiao Tingting Liu Xuechun Xiao Guangzhi Hu Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution Advanced Science electronic structure hydrogen evolution reaction single‐atom catalyst sulfur vacancy transition metal sulfide |
| title | Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution |
| title_full | Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution |
| title_fullStr | Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution |
| title_full_unstemmed | Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution |
| title_short | Electronic Structure Engineering of Single‐Atom Tungsten on Vacancy‐enriched V3S4 Nanosheets for Efficient Hydrogen Evolution |
| title_sort | electronic structure engineering of single atom tungsten on vacancy enriched v3s4 nanosheets for efficient hydrogen evolution |
| topic | electronic structure hydrogen evolution reaction single‐atom catalyst sulfur vacancy transition metal sulfide |
| url | https://doi.org/10.1002/advs.202409855 |
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