Ju Xuexuan, He Xun, Sun Yuntong, Cai Zhengwei, Sun Shengjun, Yao Yongchao, Li Zixiao, Li Jun, Wang Yan, Ren Yuchun, Ying Binwu, Luo Yongsong, Zheng Dongdong, Liu Qian, Xie Lisi, Li Tingshuai, Sun Xuping, Tang Bo
School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China.
iScience. 2023 Dec 15;27(1):108736. doi: 10.1016/j.isci.2023.108736. eCollection 2024 Jan 19.
Herein, a hierarchical NiTe@NiFe-LDH core-shell array on Ni foam (NiTe@NiFe-LDH/NF) demonstrates its effectiveness for oxygen evolution reaction (OER) in alkaline seawater electrolyte. This NiTe@NiFe-LDH/NF array showcases remarkably low overpotentials of 277 mV and 359 mV for achieving current densities of 100 and 500 mA cm, respectively. Also, it shows a low Tafel slope of 68.66 mV dec. Notably, the electrocatalyst maintains robust stability over continuous electrolysis for at least 50 h at 100 mA cm. The remarkable performance and hierarchical structure advantages of NiTe@NiFe-LDH/NF offer innovative insights for designing efficient seawater oxidation electrocatalysts.
在此，泡沫镍上的分级NiTe@NiFe-LDH核壳阵列（NiTe@NiFe-LDH/NF）在碱性海水电解质中展现出其对析氧反应（OER）的有效性。这种NiTe@NiFe-LDH/NF阵列在实现100和500 mA cm的电流密度时，分别展现出低至277 mV和359 mV的过电位。此外，它还具有68.66 mV dec的低塔菲尔斜率。值得注意的是，该电催化剂在100 mA cm下连续电解至少50小时仍保持强大的稳定性。NiTe@NiFe-LDH/NF卓越的性能和分级结构优势为设计高效的海水氧化电催化剂提供了创新思路。
