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Type: Journal article
Title: (0D/3D) MoS₂ on porous graphene as catalysts for enhanced electrochemical hydrogen evolution
Other Titles: (0D/3D) MoS(2) on porous graphene as catalysts for enhanced electrochemical hydrogen evolution
Author: Liu, Y.
Zhu, Y.
Fan, X.
Wang, S.
Li, Y.
Zhang, F.
Zhang, G.
Peng, W.
Citation: Carbon, 2017; 121:163-169
Publisher: Elsevier
Issue Date: 2017
ISSN: 0008-6223
Statement of
Yizhe Liu, Yuanzhi Zhu, Xiaobin Fan, Shaobin Wang, Yang Li, Fengbao Zhang, Guoliang Zhang, Wenchao Peng
Abstract: A new composite material consisting of 0D MoS2 nanodots and 3D MoS2 nano-flowers grown on porous reduced graphene oxide (P-rGO) was synthesized via a two-step process. The P-rGO with a surface area of 759 m2 g−1 was obtained by CO2 activation of reduced graphene oxide (rGO) at 800 °C. MoS2 was then grown on the P-rGO under hydrothermal conditions. Compared to the nonactivated rGO, P-rGO has functional pores for deposition of MoS2 nanodots and less charge transfer resistance, which can provide more active sites for hydrogen generation, thus leading to the improved activity of (0D/3D) MoS2/P-rGO in hydrogen evolution reaction (HER). The overpotential of (0D/3D) MoS2/P-rGO was only ∼150 mV vs. RHE, and the corresponding Tafel slope was ∼56 mV Dec−1, which is comparable to most of the present MoS2/Graphene HER catalysts. The (0D/3D) MoS2/P-rGO exhibits as an efficient noble metal free HER catalyst, and has great potential for the electrochemical hydrogen production.
Description: Available online 29 May 2017
Rights: © 2017 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.carbon.2017.05.092
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Appears in Collections:Aurora harvest 3
Chemical Engineering publications

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