当前位置: X-MOL 学术Appl. Surf. Sci. › 论文详情
Facile Preparation of Self-Assembled Ni/Co Phosphates Composite Spheres with Highly Efficient HER Electrocatalytic Performances
Applied Surface Science ( IF 6.182 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.apsusc.2020.145383
Yuelong Xu; Ran Wang; Yuxuan Zheng; Lihui Zhang; Tifeng Jiao; Qiuming Peng; Zhenfa Liu

Because of their high catalytic activity and abundant resources, nonprecious transition metal phosphides are favorable substitutes for noble metals as hydrogen evolution reaction (HER) electrocatalysts. In this work, self-assembled Ni/Co phosphide composite N-doped carbon spheres were successfully prepared via a hydrothermal process, which had abundant exposed active sites for the HER. The as-obtained samples exhibited excellent electrocatalytic activity for the HER with an overpotential of only 160 mV (vs. RHE) at a current density of 10 mA cm-2 in a 0.5 M H2SO4 solution and a comparatively low Tafel slope (57 mV dec−1). Additionally, the Ni2P/CoP spheres also show good stability after 120 h and 5000 cycles of a cyclic voltammetry test. Their highly efficient catalytic activity for the HER is attributed to the specific spherical structure, which provides exposed Ni2P and CoP for favorable adsorption and desorption of hydrogen. Therefore, nonprecious transition metal phosphide spheres may provide a promising strategy to improve the catalytic activity of HER electrocatalysts.

更新日期:2020-01-13

 

全部期刊列表>>
物理学研究前沿热点精选期刊推荐
chemistry
《自然》编辑与您分享如何成为优质审稿人-信息流
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
自然职场线上招聘会
科研绘图
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
阿拉丁试剂right
张晓晨
田蕾蕾
李闯创
刘天飞
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
天合科研
x-mol收录
X-MOL
苏州大学
廖矿标
深圳湾
试剂库存
down
wechat
bug