CuCo2O4 microflowers catalyst with oxygen evolution activity comparable to that of noble metal

被引：69

作者：

Du, Xiaoqiang ^{[1
]}

Zhang, Xiaoshuang ^{[1
]}

Xu, Zhoufeng ^{[1
]}

Yang, Zhi ^{[1
]}

Gong, Yaqiong ^{[1
]}

机构：

[1] North Univ China, Sch Chem Engn & Technol, Taiyuan 030051, Shanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 10期

关键词：

CuCo2O4; microflowers; Nickel foam; Electrocatalytic; Water oxidation; Durability; ELECTROCATALYTIC WATER OXIDATION; EFFICIENT ELECTROCATALYSTS; HYDROGEN EVOLUTION; FILM; MICROSPHERES; COCATALYSTS; CHALLENGES; ARRAYS; IONS; NI;

D O I：

10.1016/j.ijhydene.2018.01.142

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It is of high significance to design efficient, low-cost and durable electrocatalysts for the reaction (OER) in alkaline solution. In this communication, we report the development of CuCo2O4 microflowers directly on nickel foam (CuCo2O4/NF) as an efficient and durable electrocatalyst for OER. Such CuCo2O4/NF demands overpotential of only 296 mV to drive a geometrical catalytic current density of 20 mA cm(-2), 73 mV and 145 mV less than that for Co3O4/NF and NF, respectively, which are better than that of RuO2/NF. Furthermore, CuCo2O4/NF presents an excellent long-term electrochemical durability maintaining the activity at overpotential of 240 mV for 10 h. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：5012 / 5018

页数：7

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