Cited by 760Electrocatalysts for Energy ConversionHydrogen Storage and Materials2D Materials and Applications

Tuning the MoS 2 Edge-Site Activity for Hydrogen Evolution via Support Interactions

Tsai, Charlie, Abild-Pedersen, Frank, Nørskov, Jens K.·2014·Nano Letters

Abstract

The hydrogen evolution reaction (HER) on supported MoS2 catalysts is investigated using periodic density functional theory, employing the new BEEF-vdW functional that explicitly takes long-range van der Waals (vdW) forces into account. We find that the support interactions involving vdW forces leads to significant changes in the hydrogen binding energy, resulting in several orders of magnitude difference in HER activity. It is generally seen for the Mo-edge that strong adhesion of the catalyst onto the support leads to weakening in the hydrogen binding. This presents a way to optimally tune the hydrogen binding on MoS2 and explains the lower than expected exchange current densities of supported MoS2 in electrochemical H2 evolution studies.

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Crossref · 10.1021/nl404444k

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Authors
Tsai, C., Abild-Pedersen, F., & Nørskov, J. K.
Affiliations
  • SLAC National Accelerator Laboratory (US)
  • SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
Corresponding author
Nørskov, Jens K.
Venue
Nano Letters
Published
2014-02-10
Volume
14
Issue
3
Pages
1381-1387
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2328448780
Cited by
760
References
50
Citations by year
2026: 35 · 2025: 30 · 2024: 39 · 2023: 50 · 2022: 85 · 2021: 73 · 2020: 86 · 2019: 83 · 2018: 77 · 2017: 79 · 2016: 61 · 2015: 39 · 2014: 23
FWCI
22.22
Type
journal article
Language
en
Open access
closed
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • U.S. Department of Energy
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
Keywords
MoS2, hydrogen evolution reaction, edge sites, support interaction, van der Waals interactions, hydrogen binding energy, exchange current density, electrocatalysis

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