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

Research output: Contribution to journalArticlepeer-review

344 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 languageBritish English
Pages (from-to)2101-2107
Number of pages7
JournalACS Catalysis
Volume3
Issue number9
DOIs
StatePublished - 6 Sep 2013

Keywords

  • active site density
  • electrocatalyst
  • hydrogen evolution reaction
  • molybdenum disulfide
  • nanosheets

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