A cobalt-manganese layered oxide/graphene composite as an outstanding oxygen evolution reaction electrocatalyst

被引：13
|
作者：
Kobayashi H. [1 ]
Sugawara Y. [2 ]
Yamaguchi T. [2 ]
Honma I. [1 ]
机构：
[1] Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Miyagi, Sendai
[2] Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-17, 4259 Nagatsuta-cho, Midori-ku, Kanagawa, Yokohama
来源：
Chemical Communications | 2021年 / 57卷 / 72期
基金：
日本科学技术振兴机构; 日本学术振兴会;
关键词：
Transition metal oxides - Oxygen - Transition metals - Cobalt compounds - Graphene;
D O I：
10.1039/d1cc03152j
中图分类号：
学科分类号：
摘要：
To enhance the oxygen evolution reaction mass activity of cobalt-manganese layered oxide (CMO), we develop a one-pot synthetic process to anchor CMO onto graphene sheets (CMO/G). Its mass activity is 66-fold higher than that of physically mixed bare CMO with graphene and even better than those of previously reported graphene-supported first-row transition metal oxide-based electrocatalysts. The remarkable mass activity is attributed to the excellent intrinsic activity of CMO, small and well-dispersed CMO nanosheets on graphene sheets and hydrophilized graphene due to the synthetic process. Furthermore, CMO/G exhibits excellent stability. © The Royal Society of Chemistry 2021.
引用
收藏
页码：9052 / 9055
页数：3
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