Nanocomposite of MoS2 on ordered mesoporous carbon nanospheres: A highly active catalyst for electrochemical hydrogen evolution

被引：137

作者：

Bian, Xiaojun ^{[1
,2
]}

Zhu, Jie ^{[1
,2
]}

Liao, Lei ^{[1
,2
]}

Scanlon, Micheal D. ^{[3
]}

Ge, Peiyu ^{[3
]}

Ji, Chang ^{[4
]}

Girault, Hubert H. ^{[3
]}

Liu, Baohong ^{[1
,2
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[2] Fudan Univ, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

[3] Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, CH-1015 Lausanne, Switzerland

[4] Texas State Univ, Dept Chem & Biochem, San Marcos, TX 78666 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2012年 / 22卷

关键词：

Electrocatalyst; Hydrogen evolution reaction; Mesoporous carbon nanospheres; Molybdenum disulfide; LAYER;

D O I：

10.1016/j.elecom.2012.06.009

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An efficient electrocatalyst for hydrogen evolution has been developed based upon in situ reduction of MoS2 on ordered mesoporous carbon nanospheres (MoS2/MCNs). The properties of MoS2/MCNs were characterised by scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Polarisation curves and electrochemical impedance measurements were obtained for MoS2/MCNs modified glassy carbon electrodes. The MoS2/MCNs exhibit high catalytic activity for hydrogen evolution with a low over-potential and a very high current density. A theory outlining the origins of the Tafel slope for a Volmer-Heyrovsky (rate determining step) mechanism of hydrogen evolution at MoS2 catalytic edge sites is presented. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：128 / 132

页数：5

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