Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction
Metal sulfide electrocatalyst is developed as a cost-effective and promising candidate for hydrogen evolution reaction (HER). In this work, we report a novel Mo-doped Cu<sub>2</sub>S self-supported electrocatalyst grown in situ on three-dimensional copper foam via a facile sulfurization...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/18/5961 |
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| author | Yajie Xie Jianfeng Huang Rui Xu Danyang He Mengfan Niu Xiaoyi Li Guoting Xu Liyun Cao Liangliang Feng |
| author_facet | Yajie Xie Jianfeng Huang Rui Xu Danyang He Mengfan Niu Xiaoyi Li Guoting Xu Liyun Cao Liangliang Feng |
| author_sort | Yajie Xie |
| collection | DOAJ |
| description | Metal sulfide electrocatalyst is developed as a cost-effective and promising candidate for hydrogen evolution reaction (HER). In this work, we report a novel Mo-doped Cu<sub>2</sub>S self-supported electrocatalyst grown in situ on three-dimensional copper foam via a facile sulfurization treatment method. Interestingly, Mo-Cu<sub>2</sub>S nanosheet structure increases the electrochemically active area, and the large fleecy multilayer flower structure assembled by small nanosheet facilitates the flow of electrolyte in and out. More broadly, the introduction of Mo can adjust the electronic structure, significantly increase the volmer step rate, and accelerate the reaction kinetics. As compared to the pure Cu<sub>2</sub>S self-supported electrocatalyst, the Mo-Cu<sub>2</sub>S/CF show much better alkaline HER performance with lower overpotential (18 mV at 10 mA cm<sup>−2</sup>, 322 mV at 100 mA cm<sup>−2</sup>) and long-term durability. Our work constructs a novel copper based in-situ metal sulfide electrocatalysts and provides a new idea to adjust the morphology and electronic structure by doping for promoting HER performance. |
| first_indexed | 2024-03-09T23:01:02Z |
| format | Article |
| id | doaj.art-633a90b8c9d84f2b8e770f6bbec5271d |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T23:01:02Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-633a90b8c9d84f2b8e770f6bbec5271d2023-11-23T18:01:55ZengMDPI AGMolecules1420-30492022-09-012718596110.3390/molecules27185961Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution ReactionYajie Xie0Jianfeng Huang1Rui Xu2Danyang He3Mengfan Niu4Xiaoyi Li5Guoting Xu6Liyun Cao7Liangliang Feng8Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, ChinaKey Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, ChinaKey Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, ChinaMetal sulfide electrocatalyst is developed as a cost-effective and promising candidate for hydrogen evolution reaction (HER). In this work, we report a novel Mo-doped Cu<sub>2</sub>S self-supported electrocatalyst grown in situ on three-dimensional copper foam via a facile sulfurization treatment method. Interestingly, Mo-Cu<sub>2</sub>S nanosheet structure increases the electrochemically active area, and the large fleecy multilayer flower structure assembled by small nanosheet facilitates the flow of electrolyte in and out. More broadly, the introduction of Mo can adjust the electronic structure, significantly increase the volmer step rate, and accelerate the reaction kinetics. As compared to the pure Cu<sub>2</sub>S self-supported electrocatalyst, the Mo-Cu<sub>2</sub>S/CF show much better alkaline HER performance with lower overpotential (18 mV at 10 mA cm<sup>−2</sup>, 322 mV at 100 mA cm<sup>−2</sup>) and long-term durability. Our work constructs a novel copper based in-situ metal sulfide electrocatalysts and provides a new idea to adjust the morphology and electronic structure by doping for promoting HER performance.https://www.mdpi.com/1420-3049/27/18/5961Mo dopingCu<sub>2</sub>Selectrocatalysthydrogen evolution |
| spellingShingle | Yajie Xie Jianfeng Huang Rui Xu Danyang He Mengfan Niu Xiaoyi Li Guoting Xu Liyun Cao Liangliang Feng Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction Molecules Mo doping Cu<sub>2</sub>S electrocatalyst hydrogen evolution |
| title | Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction |
| title_full | Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction |
| title_fullStr | Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction |
| title_full_unstemmed | Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction |
| title_short | Mo-Doped Cu<sub>2</sub>S Multilayer Nanosheets Grown In Situ on Copper Foam for Efficient Hydrogen Evolution Reaction |
| title_sort | mo doped cu sub 2 sub s multilayer nanosheets grown in situ on copper foam for efficient hydrogen evolution reaction |
| topic | Mo doping Cu<sub>2</sub>S electrocatalyst hydrogen evolution |
| url | https://www.mdpi.com/1420-3049/27/18/5961 |
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