MoS2 nanosheets: A designed structure with high active site density for the hydrogen evolution reaction

Zhuangzhi Wu; Baizeng Fang; Zhiping Wang; Changlong Wang; Zhihong Liu; Fangyang Liu; Wei Wang; Akram Alfantazi; Dezhi Wang; David P. Wilkinson

doi:10.1021/cs400384h

MoS₂ nanosheets: A designed structure with high active site density for the hydrogen evolution reaction

Zhuangzhi Wu, Baizeng Fang, Zhiping Wang, Changlong Wang, Zhihong Liu, Fangyang Liu, Wei Wang, Akram Alfantazi, Dezhi Wang, David P. Wilkinson

Chemical and Petroleum Engineering

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

359 Scopus citations

Abstract

Two-dimensional MoS₂ nanosheets (NSs) with high active site density were designed for the hydrogen evolution reaction (HER) through a microdomain reaction method. The effect of the annealing temperature on the microstructure and the HER performance of MoS₂ NSs was examined, and a plausible relation between the stack structures of the MoS₂ catalysts and their HER performance was also explored. The MoS₂ NS electrocatalyst obtained at 550 C reveals the best HER performance with a relatively small Tafel slope of 68 mV/dec. Both the exposed surface area and active site density are very important for providing a large amount of active sites. The present work has been proved to be an efficient route to achieve a high active site density and a relatively large surface area, which might have potential use in photoelectrocatalytic water splitting.

Original language	British English
Pages (from-to)	2101-2107
Number of pages	7
Journal	ACS Catalysis
Volume	3
Issue number	9
DOIs	https://doi.org/10.1021/cs400384h
State	Published - 6 Sep 2013

Keywords

active site density
electrocatalyst
hydrogen evolution reaction
molybdenum disulfide
nanosheets

UN SDGs

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

Access to Document

10.1021/cs400384h

Cite this

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title = "MoS2 nanosheets: A designed structure with high active site density for the hydrogen evolution reaction",

abstract = "Two-dimensional MoS2 nanosheets (NSs) with high active site density were designed for the hydrogen evolution reaction (HER) through a microdomain reaction method. The effect of the annealing temperature on the microstructure and the HER performance of MoS2 NSs was examined, and a plausible relation between the stack structures of the MoS2 catalysts and their HER performance was also explored. The MoS2 NS electrocatalyst obtained at 550 C reveals the best HER performance with a relatively small Tafel slope of 68 mV/dec. Both the exposed surface area and active site density are very important for providing a large amount of active sites. The present work has been proved to be an efficient route to achieve a high active site density and a relatively large surface area, which might have potential use in photoelectrocatalytic water splitting.",

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author = "Zhuangzhi Wu and Baizeng Fang and Zhiping Wang and Changlong Wang and Zhihong Liu and Fangyang Liu and Wei Wang and Akram Alfantazi and Dezhi Wang and Wilkinson, {David P.}",

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T2 - A designed structure with high active site density for the hydrogen evolution reaction

AU - Wu, Zhuangzhi

AU - Fang, Baizeng

AU - Wang, Zhiping

AU - Wang, Changlong

AU - Liu, Zhihong

AU - Liu, Fangyang

AU - Wang, Wei

AU - Alfantazi, Akram

AU - Wang, Dezhi

AU - Wilkinson, David P.

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AB - Two-dimensional MoS2 nanosheets (NSs) with high active site density were designed for the hydrogen evolution reaction (HER) through a microdomain reaction method. The effect of the annealing temperature on the microstructure and the HER performance of MoS2 NSs was examined, and a plausible relation between the stack structures of the MoS2 catalysts and their HER performance was also explored. The MoS2 NS electrocatalyst obtained at 550 C reveals the best HER performance with a relatively small Tafel slope of 68 mV/dec. Both the exposed surface area and active site density are very important for providing a large amount of active sites. The present work has been proved to be an efficient route to achieve a high active site density and a relatively large surface area, which might have potential use in photoelectrocatalytic water splitting.

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