title: An amorphous CoSe film behaves as an active and stable full water-splitting electrocatalyst under strongly alkaline conditions.
abstract: It is attractive but still remains a big challenge to develop non-noble metal bifunctional electrocatalysts efficient for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) under alkaline conditions. Herein, an amorphous CoSe film electrodeposited on a Ti mesh (a-CoSe/Ti) is demonstrated to exhibit high electrocatalytic activity and stability for both reactions in 1.0 M KOH. It needs overpotentials of 292 and 121 mV to drive 10 mA cm(-2) for OER and HER, respectively. The two-electrode alkaline water electrolyzer affords a water-splitting current of 10 mA cm(-2) at a cell voltage of 1.65 V. This work offers an attractive cost-effective catalytic material toward full water splitting applications.
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, Sichuan, China. luoylcwnu@hotmail.com sunxp@cwnu.edu.cn.
authors.forename: Tingting
authors.initials: T
authors.lastname: Liu
authors.forename: Qian
authors.initials: Q
authors.lastname: Liu
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Yonglan
authors.initials: Y
authors.lastname: Luo
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun