Cobalt nickel boride as an active electrocatalyst for water splitting

标题

作者

作者:Xu, N (Xu, Ning)^[1 ]; Cao, GX (Cao, Guoxuan)^[1 ]; Chen, ZJ (Chen, Zhengjun)^[1 ]; Kang, Q (Kang, Qing)^[1 ]; Dai, HB (Dai, Hongbin)^[1 ]; Wang, P (Wang, Ping)^[1 ]

期刊信息

JOURNAL OF MATERIALS CHEMISTRY A

卷:5

期:24

页:12379-12384

DOI:10.1039/c7ta02644g

出版年:JUN 28 2017

文献类型:Article

查看期刊影响力

8.867	8.824
2016	5 年

JCR® 类别	类别中的排序	JCR 分区
CHEMISTRY, PHYSICAL	15/146	Q1
ENERGY & FUELS	4/92	Q1
MATERIALS SCIENCE, MULTIDISCIPLINARY	19/275	Q1

摘要

Electrochemically splitting water to produce clean hydrogen fuel requires high-performance electrocatalysts. Here, we report that ternary transition metal boride Co-Ni-B is an active candidate catalyst for water splitting. The Co-Ni-B nanoparticles were deposited on Ni foam (NF) by a facile electroless plating method. After being properly calcined under an Ar atmosphere, the Co-Ni-B@NF catalyst exhibits a low overpotential along with high stability in alkaline solutions for the oxygen evolution reaction, which is among the best reported levels for non-precious metal catalysts. Furthermore, the properly annealed Co-Ni-B@NF catalyst also shows good activity towards the hydrogen evolution reaction. The potential of Co-Ni-B@NF as a bifunctional catalyst for the overall water splitting was demonstrated, with 10 mA cm(-2) achieved at 1.72 V. The favorable combination of high catalytic activity, facile preparation and low cost makes Co-Ni-B@NF a very promising bifunctional catalyst for electrochemical water splitting.