Nanocomposite of MoS 2 on ordered mesoporous carbon nanospheres: A highly active catalyst for electrochemical hydrogen evolution

Xiaojun Bian; Jie Zhu; Lei Liao; Micheál D. Scanlon; Peiyu Ge; Chang Ji; Hubert H. Girault; Baohong Liu

doi:10.1016/j.elecom.2012.06.009

Nanocomposite of MoS ₂ on ordered mesoporous carbon nanospheres: A highly active catalyst for electrochemical hydrogen evolution

Xiaojun Bian
, Jie Zhu
, Lei Liao
, Micheál D. Scanlon
, Peiyu Ge
, Chang Ji
, Hubert H. Girault
, Baohong Liu

Research output: Contribution to journal › Article › peer-review

Abstract

An efficient electrocatalyst for hydrogen evolution has been developed based upon in situ reduction of MoS ₂ on ordered mesoporous carbon nanospheres (MoS ₂/MCNs). The properties of MoS ₂/MCNs were characterised by scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Polarisation curves and electrochemical impedance measurements were obtained for MoS ₂/MCNs modified glassy carbon electrodes. The MoS ₂/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 MoS ₂ catalytic edge sites is presented.

Original language	English
Pages (from-to)	128-132
Number of pages	5
Journal	Electrochemistry Communications
Volume	22
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.06.009
Publication status	Published - Aug 2012
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Electrocatalyst
Hydrogen evolution reaction
Mesoporous carbon nanospheres
Molybdenum disulfide

Access to Document

10.1016/j.elecom.2012.06.009

Cite this

@article{486a6a9cf0494f93817614f215a1a41a,

title = "Nanocomposite of MoS 2 on ordered mesoporous carbon nanospheres: A highly active catalyst for electrochemical hydrogen evolution",

abstract = "An efficient electrocatalyst for hydrogen evolution has been developed based upon in situ reduction of MoS 2 on ordered mesoporous carbon nanospheres (MoS 2/MCNs). The properties of MoS 2/MCNs were characterised by scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Polarisation curves and electrochemical impedance measurements were obtained for MoS 2/MCNs modified glassy carbon electrodes. The MoS 2/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 MoS 2 catalytic edge sites is presented.",

keywords = "Electrocatalyst, Hydrogen evolution reaction, Mesoporous carbon nanospheres, Molybdenum disulfide",

author = "Xiaojun Bian and Jie Zhu and Lei Liao and Scanlon, \{Miche{\'a}l D.\} and Peiyu Ge and Chang Ji and Girault, \{Hubert H.\} and Baohong Liu",

year = "2012",

month = aug,

doi = "10.1016/j.elecom.2012.06.009",

language = "English",

volume = "22",

pages = "128--132",

journal = "Electrochemistry Communications",

issn = "1388-2481",

number = "1",

}

TY - JOUR

T1 - Nanocomposite of MoS 2 on ordered mesoporous carbon nanospheres

T2 - A highly active catalyst for electrochemical hydrogen evolution

AU - Bian, Xiaojun

AU - Zhu, Jie

AU - Liao, Lei

AU - Scanlon, Micheál D.

AU - Ge, Peiyu

AU - Ji, Chang

AU - Girault, Hubert H.

AU - Liu, Baohong

PY - 2012/8

Y1 - 2012/8

N2 - An efficient electrocatalyst for hydrogen evolution has been developed based upon in situ reduction of MoS 2 on ordered mesoporous carbon nanospheres (MoS 2/MCNs). The properties of MoS 2/MCNs were characterised by scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Polarisation curves and electrochemical impedance measurements were obtained for MoS 2/MCNs modified glassy carbon electrodes. The MoS 2/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 MoS 2 catalytic edge sites is presented.

AB - An efficient electrocatalyst for hydrogen evolution has been developed based upon in situ reduction of MoS 2 on ordered mesoporous carbon nanospheres (MoS 2/MCNs). The properties of MoS 2/MCNs were characterised by scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Polarisation curves and electrochemical impedance measurements were obtained for MoS 2/MCNs modified glassy carbon electrodes. The MoS 2/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 MoS 2 catalytic edge sites is presented.

KW - Electrocatalyst

KW - Hydrogen evolution reaction

KW - Mesoporous carbon nanospheres

KW - Molybdenum disulfide

UR - https://www.scopus.com/pages/publications/84864244389

U2 - 10.1016/j.elecom.2012.06.009

DO - 10.1016/j.elecom.2012.06.009

M3 - Article

AN - SCOPUS:84864244389

SN - 1388-2481

VL - 22

SP - 128

EP - 132

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 1

ER -