Facile electrosynthesis of Fe (Ni/Co) hydroxyphosphate as a bifunctional electrocatalyst for efficient water splitting

被引:27
作者
Bahar, P. T. [1 ]
Lokhande, A. C. [1 ]
Jo, Eunae [1 ]
Pawar, B. S. [2 ]
Gang, M. G. [1 ]
Pawar, S. M. [2 ]
Kim, J. H. [1 ]
机构
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, Optoelect Convergence Res Ctr, Gwangju 500757, South Korea
[2] Dongguk Univ, Div Phys & Semicond Sci, Seoul 100715, South Korea
基金
新加坡国家研究基金会;
关键词
Bifunctional electrocatalyst; Electrodeposition; Hydroxyphosphate; TOF; REACTION OER ELECTROCATALYST; METAL-ORGANIC FRAMEWORK; OXYGEN EVOLUTION; ENERGY-CONVERSION; NICKEL FOAM; FILMS; IRON; HYDROXIDE; CATALYSTS; COBALT;
D O I
10.1016/j.jiec.2018.09.041
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Porous iron-nickel hydroxyphosphate and iron-cobalt hydroxyphosphate electrodes are prepared by one-step electrodeposition method. The as-prepared iron-nickel hydroxyphosphate and iron-cobalt hydroxyphosphate electrodes show excellent performance for water splitting with high catalytic activity towards the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), with a lower overpotential of 220 and 235 mV for the OER and 145 and 160 mV for the HER, respectively. Moreover, two-electrode electrolyzer using iron-nickel hydroxyphosphate as both the anode and cathode requires a cell voltage of 1.65 V while iron-cobalt hydroxyphosphate requires cell voltage of 1.67 V to gain current density of 10 mA cm(-2). (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:116 / 123
页数:8
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