Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution
Water splitting is one of the efficient ways to produce hydrogen with zero carbon dioxide emission. Thus far, Pt has been regarded as a highly reactive catalyst for the hydrogen evolution reaction (HER); however, the high cost and rarity of Pt significantly hinder its commercial use. Herein, we succ...
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MDPI AG
2020-11-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/11/1274 |
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| author | Jong-Sang Youn Sangmin Jeong Inhwan Oh Sunyoung Park Hien Duy Mai Ki-Joon Jeon |
| author_facet | Jong-Sang Youn Sangmin Jeong Inhwan Oh Sunyoung Park Hien Duy Mai Ki-Joon Jeon |
| author_sort | Jong-Sang Youn |
| collection | DOAJ |
| description | Water splitting is one of the efficient ways to produce hydrogen with zero carbon dioxide emission. Thus far, Pt has been regarded as a highly reactive catalyst for the hydrogen evolution reaction (HER); however, the high cost and rarity of Pt significantly hinder its commercial use. Herein, we successfully developed an HER catalyst composed of NiS<sub>x</sub> (x = 1 or 2) on stainless steel (NiS<sub>x</sub>/SUS) using electrodeposition and sulfurization techniques. Notably, the electrochemical active surface area(ECSA) of NiS<sub>x</sub>/SUS was improved more than two orders of magnitude, resulting in a considerable improvement in the electrochemical charge transfer and HER activity in comparison with stainless steel (SUS). The long-term HER examination by linear scan voltammetry (LSV) confirmed that NiS<sub>x</sub>/SUS was stable up to 2000 cycles. |
| first_indexed | 2024-03-10T15:06:42Z |
| format | Article |
| id | doaj.art-0aded6cd83264789a6cdaf07146a7e73 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T15:06:42Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-0aded6cd83264789a6cdaf07146a7e732023-11-20T19:37:50ZengMDPI AGCatalysts2073-43442020-11-011011127410.3390/catal10111274Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen EvolutionJong-Sang Youn0Sangmin Jeong1Inhwan Oh2Sunyoung Park3Hien Duy Mai4Ki-Joon Jeon5Department of Environmental Engineering, The Catholic University of Korea, Bucheon 14662, KoreaDepartment of Environmental Engineering, Inha University, Incheon 22212, KoreaDepartment of Environmental Engineering, Inha University, Incheon 22212, KoreaDepartment of Environmental Engineering, Inha University, Incheon 22212, KoreaDepartment of Environmental Engineering, Inha University, Incheon 22212, KoreaDepartment of Environmental Engineering, Inha University, Incheon 22212, KoreaWater splitting is one of the efficient ways to produce hydrogen with zero carbon dioxide emission. Thus far, Pt has been regarded as a highly reactive catalyst for the hydrogen evolution reaction (HER); however, the high cost and rarity of Pt significantly hinder its commercial use. Herein, we successfully developed an HER catalyst composed of NiS<sub>x</sub> (x = 1 or 2) on stainless steel (NiS<sub>x</sub>/SUS) using electrodeposition and sulfurization techniques. Notably, the electrochemical active surface area(ECSA) of NiS<sub>x</sub>/SUS was improved more than two orders of magnitude, resulting in a considerable improvement in the electrochemical charge transfer and HER activity in comparison with stainless steel (SUS). The long-term HER examination by linear scan voltammetry (LSV) confirmed that NiS<sub>x</sub>/SUS was stable up to 2000 cycles.https://www.mdpi.com/2073-4344/10/11/1274sulfurizationNiS-NiS<sub>2</sub>stainless steel 304hydrogen evolution |
| spellingShingle | Jong-Sang Youn Sangmin Jeong Inhwan Oh Sunyoung Park Hien Duy Mai Ki-Joon Jeon Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution Catalysts sulfurization NiS-NiS<sub>2</sub> stainless steel 304 hydrogen evolution |
| title | Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution |
| title_full | Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution |
| title_fullStr | Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution |
| title_full_unstemmed | Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution |
| title_short | Enhanced Electrocatalytic Activity of Stainless Steel Substrate by Nickel Sulfides for Efficient Hydrogen Evolution |
| title_sort | enhanced electrocatalytic activity of stainless steel substrate by nickel sulfides for efficient hydrogen evolution |
| topic | sulfurization NiS-NiS<sub>2</sub> stainless steel 304 hydrogen evolution |
| url | https://www.mdpi.com/2073-4344/10/11/1274 |
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