Peer-Reviewed Journal Details
Mandatory Fields
Bian, Xiaojun; Zhu, Jie; Liao, Lei; Scanlon, Micheál D.; Ge, Peiyu; Ji, Chang; Girault, Hubert H. and Liu, Baohong
Electrochemistry Communications
Nanocomposite of MoS2 on ordered mesoporous carbon nanospheres: A highly active catalyst for electrochemical hydrogen evolution
Optional Fields
Hydrogen evolution reaction Mesoporous carbon nanospheres Molybdenum disulfide
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 overpotential 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. doi=10.1016/j.elecom.2012.06.009
Grant Details