Cobalt/iron bimetal-organic frameworks as efficient electrocatalysts for the oxygen evolution reaction

被引：46
|
作者：
Xie, Shili [1 ]
Li, Fei [1 ]
Xu, Suxian [1 ]
Li, Jiayuan [1 ]
Zeng, Wei [2 ]
机构：
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
[2] Dalian Wondersun Biochem Technol Co LTD, Dalian 116600, Liaoning, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2019年 / 40卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Bimetal-organic frameworks; Oxygen evolution reaction; Electrocatalysts; Synergetic effect; Ultrasonic method; BIFUNCTIONAL ELECTROCATALYST; CATALYST; PERFORMANCE; SCAFFOLDS; OXIDATION;
D O I：
10.1016/S1872-2067(19)63384-X
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The development of high efficiency and stable electrocatalysts for oxygen evolution is critical for energy storage and conversion systems. Herein, a series of Co/Fe bimetal-organic frameworks (MOFs) were fabricated using a facile ultrasonic method at room temperature, as electrocatalysts for the oxygen evolution reaction (OER) in alkaline solution. The Co2Fe-MOF exhibited an overpotential of 280 mV at a current density of 10 mA cm(-2), a low Tafel slope of 44.7 mV dec(-1), and long-term stability over 12000 s in 1 mol L-1 KOH. This impressive performance was attributed to the high charge transfer rate, large specific surface area, and synergistic effects of the cobalt and iron centers. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1205 / 1211
页数：7
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