Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction
Producing hydrogen through water electrolysis is one of the most promising green energy storage and conversion technologies for the long-term development of energy-related hydrogen technologies. MoS2 is a very promising electrocatalyst which may replace precious metal catalysts for the hydrogen evol...
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2022.1064752/full |
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| author | Zhaohui Xiao Zhaohui Xiao Shengdao Luo Wei Duan Xu Zhang Shixing Han Yipu Liu Liang Yang Shiwei Lin |
| author_facet | Zhaohui Xiao Zhaohui Xiao Shengdao Luo Wei Duan Xu Zhang Shixing Han Yipu Liu Liang Yang Shiwei Lin |
| author_sort | Zhaohui Xiao |
| collection | DOAJ |
| description | Producing hydrogen through water electrolysis is one of the most promising green energy storage and conversion technologies for the long-term development of energy-related hydrogen technologies. MoS2 is a very promising electrocatalyst which may replace precious metal catalysts for the hydrogen evolution reaction (HER). In this work, doughty-electronegative heteroatom defects (halogen atoms such as chlorine, fluorine, and nitrogen) were successfully introduced in MoS2 by using a large-scale, green, and simple ball milling strategy to alter its electronic structure. The physicochemical properties (morphology, crystallization, chemical composition, and electronic structure) of the doughty-electronegative heteroatom-induced defective MoS2 (N/Cl-MoS2) were identified using SEM, TEM, Raman, XRD, and XPS. Furthermore, compared with bulk pristine MoS2, the HER activity of N/Cl-MoS2 significantly increased from 442 mV to 280 mV at a current of 10 mA cm−2. Ball milling not only effectively reduced the size of the catalyst material, but also exposed more active sites. More importantly, the introduced doughty-electronegative heteroatom optimized the electronic structure of the catalyst. Therefore, the doughty-electronegative heteroatom induced by mechanical ball milling provides a useful reference for the large-scale production of green, efficient, and low-cost catalyst materials. |
| first_indexed | 2024-04-13T12:10:00Z |
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| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-13T12:10:00Z |
| publishDate | 2022-11-01 |
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| series | Frontiers in Chemistry |
| spelling | doaj.art-f36eaaf1fa594b4c83bbf53224172f2c2022-12-22T02:47:30ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462022-11-011010.3389/fchem.2022.10647521064752Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reactionZhaohui Xiao0Zhaohui Xiao1Shengdao Luo2Wei Duan3Xu Zhang4Shixing Han5Yipu Liu6Liang Yang7Shiwei Lin8State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, ChinaProducing hydrogen through water electrolysis is one of the most promising green energy storage and conversion technologies for the long-term development of energy-related hydrogen technologies. MoS2 is a very promising electrocatalyst which may replace precious metal catalysts for the hydrogen evolution reaction (HER). In this work, doughty-electronegative heteroatom defects (halogen atoms such as chlorine, fluorine, and nitrogen) were successfully introduced in MoS2 by using a large-scale, green, and simple ball milling strategy to alter its electronic structure. The physicochemical properties (morphology, crystallization, chemical composition, and electronic structure) of the doughty-electronegative heteroatom-induced defective MoS2 (N/Cl-MoS2) were identified using SEM, TEM, Raman, XRD, and XPS. Furthermore, compared with bulk pristine MoS2, the HER activity of N/Cl-MoS2 significantly increased from 442 mV to 280 mV at a current of 10 mA cm−2. Ball milling not only effectively reduced the size of the catalyst material, but also exposed more active sites. More importantly, the introduced doughty-electronegative heteroatom optimized the electronic structure of the catalyst. Therefore, the doughty-electronegative heteroatom induced by mechanical ball milling provides a useful reference for the large-scale production of green, efficient, and low-cost catalyst materials.https://www.frontiersin.org/articles/10.3389/fchem.2022.1064752/fulldefect-inducedmolybdenum disulfideelectronegativeelectrocatalystshydrogen evolution reaction |
| spellingShingle | Zhaohui Xiao Zhaohui Xiao Shengdao Luo Wei Duan Xu Zhang Shixing Han Yipu Liu Liang Yang Shiwei Lin Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction Frontiers in Chemistry defect-induced molybdenum disulfide electronegative electrocatalysts hydrogen evolution reaction |
| title | Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction |
| title_full | Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction |
| title_fullStr | Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction |
| title_full_unstemmed | Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction |
| title_short | Doughty-electronegative heteroatom-induced defective MoS2 for the hydrogen evolution reaction |
| title_sort | doughty electronegative heteroatom induced defective mos2 for the hydrogen evolution reaction |
| topic | defect-induced molybdenum disulfide electronegative electrocatalysts hydrogen evolution reaction |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2022.1064752/full |
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