论文摘要
Compared with noble metal catalyst, Co3O4-based electrocatalysts have attracted considerable interesting as low-cost alternatives for oxygen evolution reaction（OER）. However, the poor electrocatalytic activity still remains a huge challenge. Herein, we demonstrate a feasible approach through oxidation of CoFe layered double hydroxide（CoFe-LDH） to synthesize Fe-doped Co3O4@C nanoparticles with size of about30–50 nm. As OER catalyst, the as-synthesized Fe-doped Co3O4@C nanoparticles exhibited superior OER performance with a small overpotential of 260 mV at the current density of 20 mA cm-2, a small Tafel slope of 70 mV dec-1 and long-term durability（there was no obviously OER current density degradation for 100 h） in alkaline solution. The present work opens a new avenue to the exploration of cost-effective and excellent electrocatalysts based on transition metal oxide materials to substitute precious metal materials for water splitting.
论文目录
文章来源
类型: 期刊论文
作者: Caiyun He,Xuzhao Han,Xianggui Kong,Meihong Jiang,Deqiang Lei,Xiaodong Lei
来源: Journal of Energy Chemistry 2019年05期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 化学,材料科学
单位: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology,Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
基金: supported by the 973 Program(no.2014CB932104),the National Natural Science Foundation of China(nos:2177060378,U1707603 and 21521005),the Program for Changjiang Scholars,Innovative Research Teams in Universities(no.IRT1205)
分类号: TB383.1;O643.36
页码: 63-70
总页数: 8
文件大小: 5363K
下载量: 18