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

页码：9052 / 9055

页数：3

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