| Autor: |
Chu, Yuanyuan, Zhang, Xiaoxiao, Deng, Bohan, Wang, Kuixiao, Tan, Xiaoyao |
| Předmět: |
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| Zdroj: |
Nanotechnology; 9/18/2022, Vol. 33 Issue 40, p1-8, 8p |
| Abstrakt: |
S-doped Fe/Ni oxide and Fe/Ni hydride oxide catalysts exhibit good oxygen evolution reaction (OER) performance. Nevertheless, the over-doping of S and the agglomeration of active sites still hinder the improvement of the performance of these catalysts. The S/O ratio regulation can optimize the electronic structure effectively so as to improve the OER performance of the catalysts, but few studies have focused on this study. Here, we find a facile room-temperature method to synthesize the unique 3D ultra-thin FeNiOS nanosheets with an adjustable S/O ratio for OER. The FeNiOS-NS catalysts exhibit excellent OER performance with an overpotential of 235 mV at 10 mA cmâ'2 and a small Tafel slope of 64.2 mV decâ'1 in 0.1 M KOH, which originated from the sufficient exposure of the active Feâ€"Ni component and the optimized electronic structure due to the tunable S/O ratio. This study demonstrates a novel strategy to optimize the OER performance of Ni-based catalysts. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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