In-situ Selenization of Co-based Metal-Organic Frameworks as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

被引：96

作者：

Lin, Jie ^{[1
]}

He, Jiarui ^{[1
]}

Qi, Fei ^{[1
]}

Zheng, Binjie ^{[1
]}

Wang, Xinqiang ^{[1
]}

Yu, Bo ^{[1
]}

Zhou, Keren ^{[1
]}

Zhang, Wanli ^{[1
]}

Li, Yanrong ^{[1
]}

Chen, Yuanfu ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2017年 / 247卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

metal-organic frameworks; hydrogen evolution reaction; cobalt diselenide; LITHIUM SULFUR BATTERIES; CARBON-FIBER PAPER; STABLE ELECTROCATALYST; WATER OXIDATION; ELECTROCHEMICAL IMPEDANCE; OXYGEN EVOLUTION; ION BATTERIES; NANOSHEETS; NANOWIRES; ELECTRODE;

D O I：

10.1016/j.electacta.2017.06.179

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Metal-organic frameworks (MOFs) derived cobalt diselenide (MOF-CoSe2) constructed with CoSe2 nanoparticles anchored into nitrogen-doped (N-doped) graphitic carbon has been synthesized through in-situ selenization of Co-based MOFs. The obtained MOF-CoSe2 exhibits excellent hydrogen evolution reaction (HER) performance: it shows a small Tafel slope of 42 mV dec(-1), a low onset potential of 150 mV; it delivers a high current density and excellent long-term stability. Such enhancement can be attributed to the unique N-doped MOFs derived architecture with high conductivity, which can not only provide abundant active reaction sites, but also ensure robust contact between the CoSe2 nanoparticles and N-doped carbon matrix, leading to outstanding electrocatalytic activity for HER. This study provides a route to prepared non-noble-metal catalyst with high efficiency and excellent electrocatalytic activity for HER. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：258 / 264

页数：7

共 48 条

[1] Tuning MOF CO2 Adsorption Properties via Cation Exchange [J].