| 第一作者： | Ju, JJ (Ju, Jingjing); Lu, JJ (Lu, Jiajia); Shi, XY (Shi, Xiaoyue); Zhu, HW (Zhu, Hongwei); Liang, HP (Liang, Han-Pu); |
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| 联系作者： | Ju, JJ (Ju, Jingjing); Lu, JJ (Lu, Jiajia); Shi, XY (Shi, Xiaoyue); Zhu, HW (Zhu, Hongwei); Liang, HP (Liang, Han-Pu); |
| 发表年度： | 2021 |
| 期： | 14 |
| 卷： | 45 |
| 页： | 6424-6431 |
| 摘要： | Exploring efficient electrocatalysts with low production costs for the oxygen evolution reaction (OER) is significant for sustainable and scalable production of hydrogen through water electrolysis, while it still remains a challenge. Herein, mesoporous Fe-doped Co-Ni oxide (CoNiFeOx) nanosheets grown on nickel foam are synthesized by a facile two-step strategy (a combination of hydrothermal and post-annealing). Benefiting from the mesoporous nanosheet structure, endowing the catalysts with a high specific surface area (222.6 m(2) g(-1)) and more active sites, and the optimized electronic structure due to the incorporation of Fe, the as-synthesized mesoporous CoNiFeOx nanosheets as a binder-free electrode exhibits remarkable OER activity with an overpotential of only 221 mV at a current density of 10 mA cm(-2) and a small Tafel slope of 43.8 mV dec(-1) in 1 M KOH solution. Besides, it displays excellent stability for over 250 h and no obvious activity decline is measured after the long-term stability test. Our strategy will provide a potential route to develop low-cost and high-performance electrocatalysts for the OER. |
| 刊物名称： | NEW JOURNAL OF CHEMISTRY |
| 影响因子： | 3.069 |
| 全文链接： | https://pubs.rsc.org/en/content/articlelanding/2021/NJ/D1NJ00092F |
