期刊
COMPOSITES COMMUNICATIONS
卷 26, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.100792
关键词
Electrocatalysis; MoP; Graphene; Hydrogen evolution reaction
资金
- National Natural Science Foundation of China [21975129]
- Natural Science Foundation of Jiangsu Province [BK20190759]
- Natural Science Foundation of Jiangsu Higher Education Institutions of China [19KJB430003]
- Science Fund for Distinguished Young Scholars [JC2019002]
- Nanjing Forestry University
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
This study presents a novel hybrid nanostructure electrocatalyst, which significantly enhances the activity and stability of hydrogen evolution reaction through regulating composition and interfacial interactions. The optimal hybrid electrocatalyst exhibits outstanding performance in alkaline electrolyte, contributing to the exploration of a new family of non-precious metal-based electrocatalysts.
Rationally designing highly efficient, stable and earth-abundant electrocatalysts plays a leading role for hydrogen evolution reaction (HER) from water splitting but is still challenging. The development of well-defined transition metal-based nanostructures for enhancing the HER activity and stability has sparked great interests in electrocatalysis. Herein, we report the in-situ synthesis of novel hybrid nanoarchitectures of Ni-doped MoP/reduced graphene oxide (NM/rGO) for high-performance electrocatalysis toward HER. Under the dual regulation on the composition and the interfacial interactions, the well-organized 0D/2D nanohybrids exhibited better electrocatalytic activity and enhanced stability for HER than those of Ni-doped MoP nanoparticles. The optimal hybrid electrocatalyst (NM/rGO-2:1) showed an overpotential of 122 mV at current density of 10 mA cm(-2) and its corresponding Tafel slope was 71.4 mV dec(-1) in alkaline electrolyte. The synergy of well-dispersed Ni-MoP nanoparticles with smaller sizes and highly conductive rGO nanosheets resulted in rich active catalytic sites that remarkably boosted electrocatalytic HER performance. This work may broaden the possibility of exploiting a new family of non-precious metal-based electrocatalysts toward HER.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据