2H and 2H/1T-Transition Metal Dichalcogenide Films Prepared via Powderless Gas Deposition for the Hydrogen Evolution Reaction

Michelle P. Browne, Filip Novotný, C. Lorena Manzanares Palenzuela, Jiří Šturala, Zdenek Sofer, Martin Pumera

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The cathodic process in electrochemical water electrolyzers, the hydrogen evolution reaction (HER), is an extremely important reaction as it produces clean H2 gas that can be utilized in a fuel cell to create electricity as an energy source for the increasing energy consumption of today's World. Transition metal dichalcogenide (TMD) materials have emerged as a competitor to Pt catalysts for the HER; however, the HER catalytic activity of TMD materials depends on various parameters including their fabrication route. Herein, we present a one-step powderless deposition growth process of 2H-MoS2 and 2H-WS2 materials on their native metals which serve directly as electrodes. The 2H phase TMDs were subsequently partially converted to the 1T-phase by a tert-butyllithium immersion treatment. The 2H and 2H/1T phase TMD foils were utilized for electrochemical hydrogen evolution, and we show that these TMD foils outperform or rival other MoS2 and WS2 materials in the literature fabricated by powder-based deposition/growth techniques. These findings highlight the importance of developing new scalable fabrication routes for HER catalysts in the race toward clean energy production.

Original languageEnglish
Pages (from-to)16440-16449
Number of pages10
JournalACS Sustainable Chemistry and Engineering
Volume7
Issue number19
DOIs
Publication statusPublished - 2019 Oct 7

Bibliographical note

Funding Information:
M.P.B. would like to acknowledge the European Structural and Investment Funds, OP RDE-funded project “ChemJets” (No. CZ.02.2.69/0.0/0.0/16_027/0008351). Z.S. was supported by the Neuron Foundation for science support. M.P. acknowledges the financial support of the Grant Agency of the Czech Republic (EXPRO: 19-26896X).

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

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