文献类型：期刊文献

英文题名：One-step preparation of Fe-doped Ni3S2/rGO@NF electrode and its superior OER performances

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

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

年份：2019

卷号：44

期号：5

起止页码：2664

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20190106342622);WOS:【SCI-EXPANDED(收录号:WOS:000457659800021)】；

基金：This study was financially supported by the National Natural Science Foundation of China (51502092), The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (TP2015028), Shanghai Alliance Plan (NO. LM201881, LM201751), Shanghai Natural Science Foundation (No. 13ZR1411900), Shanghai Key Laboratory Project (08DZ2230500) and Shanghai Leading Academic Discipline Project (B502).

语种：英文

外文关键词：Ni3S2; Reduced graphene oxide (rGO); OER; Hydrothermal; Fe-doping

摘要：In order to improve the OER performance, Ni3S2-based catalysts were directly grown on Ni substrate by simultaneously doping of Fe and compositing with reduced graphene oxide (rGO). Synthesis and loading of Ni3S2/rGO were completed during a one-step hydrothermal process, in which Ni foam acted as support and Ni source of Ni3S2, as well as the subsequent current collector. It is found that either GO or Fe salt tuned Ni3S2 nanosheets into thinner and smaller interconnected nanosheets anchored on rGO, which enhanced the charge transfer resistance and improved the active sites. Hence, as-synthesized Fe-doped Ni3S2/rGO composite at 120 degrees C (Fe-2-Ni3S2/rGO@NF-120) exhibited an enhancement on OER performances: An overpotential of 247 mV at 20 mA cm(-2), and a small Tafel slope of 63 mV dec(-1), as well as an excellent stability of: 20 h maintaining at 20 mA cm(-2) or 50 mA cm(-2). (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.