MoS2 nanoparticles coupled to SnS2 nanosheets: The structural and electronic modulation for synergetic electrocatalytic hydrogen evolution

Lin Hu, Xiu Feng Song, Sheng Li Zhang, Hai Bo Zeng, Xue Ji Zhang, Robert Marks, Dan Shan

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS2 nanoparticles (MoS2 NPs) coupled to SnS2 ultrathin nanosheets (SnS2 NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS2 NPs/SnS2 NS. Surprisingly, the MoS2 NPs/SnS2 NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm−2), small Tafel slope (∼42.1 mV decade−1) and excellent electrocatalytical stability.

Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalJournal of Catalysis
Volume366
DOIs
StatePublished - 1 Oct 2018

Keywords

  • Electronic modulation
  • Hydrogen evolution reaction (HER)
  • Molybdenum disulfide nanoparticles
  • Tin disulfide nanosheet

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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