文献类型：期刊文献

英文题名：Phytic acid-derived Co2-xNixP2O7-C/RGO and its superior OER electrocatalytic performance

作者：Zhao, Chongjun[1];Li, Pengwei[1];Shao, Danmin[1];Zhang, Ruizhi[1];Wang, Shengqi[1];Zhu, Zhaoqiang[1];Zhao, Chunhua[1]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：44

期号：2

起止页码：844

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20184806160272);WOS:【SCI-EXPANDED(收录号:WOS:000456355600030)】；

基金：We are grateful for the support of Shanghai Alliance Plan (No. LM201881, LM201751), Natural Science Foundation of Shanghai (No. 13ZR1411900), Shanghai Leading Academic Discipline Project (B502), and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Amorphous Co2-xNixP2O7; Phytic acid; Oxygen evolution reaction (OER); Electrocatalysis

摘要：A phytic acid-derived Co2-xNixP2O7-C/RGO composite was designed and facilely synthesized, in which phytic acid acted as both a phosphoric source and carbon source. Both carbon derived from phytic acid and reduced graphene oxide (RGO) in composite, enhanced the conductivity and thus improve its electrocatalytical capability. As synthesized Co1.22Ni0.78P2O7-C/RGO composite exhibited excellent oxygen evolution reaction (OER) catalytic performances: At the current density of 10 mA cm(-2), only a low overpotential of 283 mV and a small Tafel slope of 51 mV dec(-1) were observed. Good OER catalytic performance was retained even after 10 h continuously running at a constant voltage, which is even comparable to those of first-rate noble metal catalyst RuO2. In addition, the performances of Co2-xNixP2O7-C/RGO catalysts were also strongly dependent on Ni content. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.