Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution
The commercial production of H2 from water splitting requires highly efficient, low-cost, and stable earth-abundant electrocatalysts to speed up the kinetics of hydrogen evolution reaction (HER). In this study, we proposed a concise and effective strategy for fabricating NiS electrocatalysts on Ni...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520308522 |
| _version_ | 1818944791085318144 |
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| author | Yihui Wu Jiqiong Lian Yuxin Wang Jingjing Sun Zhen He Zhenjian Gu |
| author_facet | Yihui Wu Jiqiong Lian Yuxin Wang Jingjing Sun Zhen He Zhenjian Gu |
| author_sort | Yihui Wu |
| collection | DOAJ |
| description | The commercial production of H2 from water splitting requires highly efficient, low-cost, and stable earth-abundant electrocatalysts to speed up the kinetics of hydrogen evolution reaction (HER). In this study, we proposed a concise and effective strategy for fabricating NiS electrocatalysts on Ni foam (NF) substrate to serve as HER electrocatalysts during potentiostatic electrodeposition. The NiS electrocatalyst shows a cauliflower-like surface morphology when the electrodeposition voltage is adjusted. The proposed electrocatalyst exhibits excellent HER performance with a low overpotential of 58 mV at 10 mA·cm−2 and a small Tafel slope of 81.6 mV·dec−1 in 1.0 M KOH solution. Such a high performance can be attributed to the amorphous phase structures, high conductivity, composition optimization, and the close combination between the electrocatalyst and NF. This study provides a facile, fast, and feasible avenue for developing highly efficient and affordable electrochemical catalysts for HER. |
| first_indexed | 2024-12-20T07:48:50Z |
| format | Article |
| id | doaj.art-a94ab68de4984ac789861158fa9a57b7 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-20T07:48:50Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-a94ab68de4984ac789861158fa9a57b72022-12-21T19:47:53ZengElsevierMaterials & Design0264-12752021-01-01198109316Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolutionYihui Wu0Jiqiong Lian1Yuxin Wang2Jingjing Sun3Zhen He4Zhenjian Gu5School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China; Fujian Key Laboratory of Functional Materials and Applications (Xiamen University of Technology), Xiamen 361024, China; Corresponding author at: School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China.School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; Corresponding author.School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China; Fujian Key Laboratory of Functional Materials and Applications (Xiamen University of Technology), Xiamen 361024, ChinaSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaWuxi Institution of Supervision and Inspection on Product Quality, Wuxi 214028, ChinaThe commercial production of H2 from water splitting requires highly efficient, low-cost, and stable earth-abundant electrocatalysts to speed up the kinetics of hydrogen evolution reaction (HER). In this study, we proposed a concise and effective strategy for fabricating NiS electrocatalysts on Ni foam (NF) substrate to serve as HER electrocatalysts during potentiostatic electrodeposition. The NiS electrocatalyst shows a cauliflower-like surface morphology when the electrodeposition voltage is adjusted. The proposed electrocatalyst exhibits excellent HER performance with a low overpotential of 58 mV at 10 mA·cm−2 and a small Tafel slope of 81.6 mV·dec−1 in 1.0 M KOH solution. Such a high performance can be attributed to the amorphous phase structures, high conductivity, composition optimization, and the close combination between the electrocatalyst and NF. This study provides a facile, fast, and feasible avenue for developing highly efficient and affordable electrochemical catalysts for HER.http://www.sciencedirect.com/science/article/pii/S0264127520308522Potentiostatic electrodepositionNi–S electrocatalystHydrogen evolution reactionAlkaline media |
| spellingShingle | Yihui Wu Jiqiong Lian Yuxin Wang Jingjing Sun Zhen He Zhenjian Gu Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution Materials & Design Potentiostatic electrodeposition Ni–S electrocatalyst Hydrogen evolution reaction Alkaline media |
| title | Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution |
| title_full | Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution |
| title_fullStr | Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution |
| title_full_unstemmed | Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution |
| title_short | Potentiostatic electrodeposition of self-supported NiS electrocatalyst supported on Ni foam for efficient hydrogen evolution |
| title_sort | potentiostatic electrodeposition of self supported nis electrocatalyst supported on ni foam for efficient hydrogen evolution |
| topic | Potentiostatic electrodeposition Ni–S electrocatalyst Hydrogen evolution reaction Alkaline media |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520308522 |
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