纳微快报（英文）2021，Vol.13Issue(5)：77-89,13.
N-Doped Graphene-Decorated NiCo Alloy Coupled with Mesoporous NiCoMoO Nano-sheet Heterojunction for Enhanced Water Electrolysis Activity at High Current Density
N?Doped Graphene?Decorated NiCo Alloy Coupled with Mesoporous NiCoMoO Nano?sheet Heterojunction for Enhanced Water Electrolysis Activity at High Current Density
摘要
Abstract
Developing highly effective and stable non-noble metal-based bifunctional catalyst working at high current density is an urgent issue for water electrolysis (WE). Herein, we prepare the N-doped graphene-decorated NiCo alloy coupled with mesoporous NiCoMoO nano-sheet grown on 3D nickel foam (NiCo@C-NiCoMoO/NF) for water splitting. NiCo@C-NiCoMoO/NF exhibits outstanding activity with low overpotentials for hydrogen and oxygen evolution reaction (HER: 39/266 mV; OER: 260/390 mV) at ± 10 and ± 1000 mA cm?2. More importantly, in 6.0 M KOH solution at 60 °C for WE, it only requires 1.90 V to reach 1000 mA cm?2 and shows excellent stabil-ity for 43 h, exhibiting the potential for actual application. The good performance can be assigned to N-doped graphene-decorated NiCo alloy and mesoporous NiCoMoO nano-sheet, which not only increase the intrinsic activity and expose abundant catalytic activity sites, butalso enhance its chemical and mechanical stability. This work thus could provide a promising material for industrial hydrogen production.关键词
N-doped graphene-decorated NiCo alloy/Catalyst/Mesoporous nano-sheet/Water electrolysis/High current densityKey words
N-doped graphene-decorated NiCo alloy/Catalyst/Mesoporous nano-sheet/Water electrolysis/High current density引用本文复制引用
Guangfu Qian,Jinli Chen,Tianqi Yu,Lin Luo,Shibin Yin..N-Doped Graphene-Decorated NiCo Alloy Coupled with Mesoporous NiCoMoO Nano-sheet Heterojunction for Enhanced Water Electrolysis Activity at High Current Density[J].纳微快报（英文）,2021,13(5):77-89,13.基金项目
This work is supported by the National Natu-ral Science Foundation of China(21872040),the Hundred Talents Program of Guangxi Universities,and the Excellent Scholars and Innovation Team of Guangxi Universities. （21872040）
