期刊
NANOSCALE
卷 10, 期 15, 页码 7291-7297出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nr01811a
关键词
-
类别
资金
- Fundamental Research Funds for the Central Universities [A201502, 201223]
- Postdoctoral Scientific Research Fund of Heilongjiang Province [LBH-Q14062, LBH-Z14076]
- International Science & Technology Cooperation Program of China [2012DFR50020]
- National Natural Science Foundation of China [51472064, 21471039, 51372056, 21671047, 51672057]
- China Postdoctoral Science Foundation [2014M560253]
- Program for New Century Excellent Talents in University [NCET-13-0174]
- Natural Science Foundation of Heilongjiang Province [B2015001]
Electrocatalytic hydrogen evolution has attracted a great deal of attention due to the urgent need for clean energy. Herein, we demonstrate the synthesis of ternary pyrite-type cobalt phosphosulphide (CoPS) nanoparticles supported on a nitrogen-doped carbon matrix, CoPS/N-C, through carbonization and subsequent phosphosulfurization of Co-based zeolitic imidazolate frameworks (ZIF-67), as promising hydrogen evolution reaction (HER) electrocatalysts in both acidic and alkaline solutions. The polyhedral structure of ZIF-67 can be well maintained in the as-prepared CoPS/N-C nanocomposites. In particular, CoPS/N-C provides a geometric catalytic current density of -10 mA cm(-2) at overpotentials of -80 and -148 mV vs. a reversible hydrogen electrode (RHE) and a Tafel slope of 68 and 78 mV dec(-1) in 0.5 M H2SO4 and 1 M KOH, respectively, which is superior to most of the transition metal phosphosulfide materials. This MOF-derived synthesis of a transition metal phosphosulfide supported heteroatom-doped carbon matrix provides a promising opportunity for the development of highly efficient electrocatalysts for renewable energy devices.
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