Pt-MoSx/Graphene Nanocomposite for the Hydrogen Evolution Reaction

DOI

10.2991/icmse-15.2015.229How to use a DOI?

Keywords

Pt, Molybdenum disulfide, Graphene, Hydrothermal synthesis, Hydrogen evolution

Abstract

In this study, a catalyst was fabricated based on Pt nanoparticles on MoS2/graphene (MoS2/GN). The Pt-MoS2/GN was formed from graphite by modi ed Hummers and Offeman’s method, hydrothermal method and polyol synthesis method. The graphene oxide (GO) sheets were synthesized by modi ed Hummers and Offeman’s method. The graphene is to obtain by reduction of GO lms by sodium tetrahydridoborate. Then, the graphene deposited with Pt particles were put in ethylene glycol for a reflux at 150 °C for 6 hours.Obtained Pt-MoS2/graphenecatalysts were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), and and energy dispersive spectroscopy (EDS). Cyclic voltammetry (CV) was utilized to estimate the electrochemical performance of the Pt-MoS2/GN nanocomposites.The results show that the Pt-MoS2/GNnanocomposites modified glasscarbonelectrode (GCE) shows a high sensitivity and low detection limit for hydrogen peroxide and glucose detection. The activity of Pt-MoS2/GN nanocomposites can be enhanced after adding the 30 wt% MoS2. The Pt-MoS2/GN shows the highest current value reached -25 mA at -0.2V, which is higher than that of pure Pt/GN. The Pt-MoS2/GN nanocomposites also exhibit superior electrochemically active surface area (ECSA).The work may provide more insight into synthesizing hybrid photocatalytic materials with high activities for applications in solar energy conversion and utilization.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shu Huei Hsieh
AU  - Lilun Chang
AU  - Wenjauh Chen
PY  - 2015/12
DA  - 2015/12
TI  - Pt-MoSx/Graphene Nanocomposite for the Hydrogen Evolution Reaction
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1256
EP  - 1259
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.229
DO  - 10.2991/icmse-15.2015.229
ID  - Hsieh2015/12
ER  -