Co-Doped CuO Nanoarray: An Efficient Oxygen Evolution Reaction Electrocatalyst with Enhanced Activity

被引：281
|
作者：
Xiong, Xiaoli [1 ]
You, Chao [1 ]
Liu, Zhiang [3 ]
Asiri, Abdullah M. [4 ,5 ]
Sun, Xuping [2 ]
机构：
[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China
[2] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China
[3] Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Peoples R China
[4] King Abdulaziz Univ, Chem Dept, Fac Sci, POB 80203, Jeddah 21589, Saudi Arabia
[5] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, POB 80203, Jeddah 21589, Saudi Arabia
来源：
ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2018年 / 6卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Co doping; CuO; Nanoarry; Oxygen evolution reaction; Electrocatalyst; LAYERED DOUBLE HYDROXIDE; WATER OXIDATION CATALYST; HYDROGEN EVOLUTION; ALKALINE-SOLUTION; STAINLESS-STEEL; COPPER; ARRAY; NANOSHEETS; ELECTRODE; SURFACE;
D O I：
10.1021/acssuschemeng.7b03752
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
It is highly desired to enhance the catalytic activity of oxygen evolution reaction (OER) electrocatalysts made of earth abundant elements. In this Letter, we report that the OER activity of a CuO nanoarray can be largely enhanced by Co doping. In 1.0 M KOH, the Co-CuO nanoarray on copper foam requires a current densities of 50 and 100 mA cm(-2) at overpotentials of only 299 and 330 mV, respectively. It also shows superior long-term durability over 15 h with a turnover frequency of 0.056 mol O-2 s(-1) at an overpotential of 300 mV.
引用
收藏
页码：2883 / 2887
页数：9
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