文献类型：期刊文献

英文题名：Nitrogen and molybdenum co-doped CoP nanohoneycombs on 3D nitrogen-doped porous graphene as enhanced electrocatalyst for oxygen evolution reaction

作者：Li, Kuang[1];Ding, Hualong[1];Zhou, Jiao-Jiao[1];Wang, Weiwei[1];Zhang, Peilin[1];Wang, Linping[1];Wu, Jing[1];Lei, Yuchen[1];Zhou, Chencheng[1];Liu, Jinzhe[1];Chen, Luyang[1]

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

年份：2021

卷号：46

期号：72

起止页码：35585

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20213610875330);WOS:【SCI-EXPANDED(收录号:WOS:000706478100005)】；

基金：This work was supported by the National Natural Science Foundation of China (51502092) , the Fundamental Research Funds for the Central Universities (JKD01211601, 222201718002) , the Thousand Talents Program Young Project in China, and the Program for Eastern Scholar at Shanghai Institutions of Higher Learning (TP2015028) .

语种：英文

外文关键词：Nitrogen doped graphene; Multi-element doping; Transition metal phosphides; Oxygen evolution reaction

摘要：The four-electron transfer process involved in anodic oxygen evolution reaction (OER) of electrocatalytic water splitting causes the sluggish kinetics and significantly limiting the efficiency of energy conversion. It's urgent to explore low-cost, efficient and stable electrocatalysts for OER. In the work, we design the nitrogen and molybdenum co-doped CoP with nanohoneycombs structure on three-dimensional (3D) nitrogen-doped porous graphene (N/Mo-CoP@NPG) as an efficient OER electrocatalyst. The N/Mo-CoP@NPG delivers the current density of 10 mA cm-2 at a low overpotential value of 201 mV in 1.0 M KOH, meanwhile the electrocatalytic activity shows no obvious degradation after 50 h. The NPG substrate provides plentiful ligaments for growth of N/Mo-CoP nanohoneycombs and 3D network for rapid electronic transfer. Additionally, doping N and Mo atoms into CoP synergistically modifies the micromorphology and electronic structure, benefiting the electrocatalytic ability. This work offers a promising strategy to improve the electrocatalytic activity of transition metal phosphides. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.