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Journal article
On a Two-Dimensional MoS2/Mo(2)CT(x)Hydrogen Evolution Catalyst Obtained by the Topotactic Sulfurization of Mo(2)CT(x)MXene
Journal of the Electrochemical Society, v 167(12)
09 Jan 2020
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Herein we topotactically reacted sulphur, S, with Mo(2)CT(x)MXene powders to synthesize Mo(2)CT(x)sheets covered by MoS(2)nanosheets and tested the resulting material as a hydrogen evolution reaction, HER, electrocatalyst. As a result, a high electrochemical active surface area catalyst was obtained. It allows driving a current density of 10 mA cm(-2)at a low overpotential of only 150 mV. Stabilization of the water activated complex as well as interfacial charge transfer accompanied by changes in the adsorption energy hydrogen are most likely responsible for the high electrochemical activity. Moreover, no efficiency loss was observed under working conditions during 30 h in a 1 mol l(-1)KOH electrolyte, confirming the remarkable electrochemical stability of this composite catalyst.
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Details
- Title
- On a Two-Dimensional MoS2/Mo(2)CT(x)Hydrogen Evolution Catalyst Obtained by the Topotactic Sulfurization of Mo(2)CT(x)MXene
- Creators
- Mohamed Benchakar - University of PoitiersVarun Natu - Drexel UniversityTarek Ali Elmelegy - Drexel UniversityMaxim Sokol - Drexel UniversityJoshua Snyder - Drexel UniversityClement Comminges - University of PoitiersClaudia Morais - University of PoitiersStephane Celerier - University of PoitiersAurelien Habrioux - University of PoitiersMichel W. Barsoum - Drexel University
- Publication Details
- Journal of the Electrochemical Society, v 167(12)
- Publisher
- Electrochemical Soc Inc
- Number of pages
- 7
- Grant note
- Foundation of the University of Poitiers ANR-18-CE08-014-MXENECAT / Agence National de la Recherche; French National Research Agency (ANR) DMR-1740795 / National Science Foundation; National Science Foundation (NSF) European Union (ERDF); European Commission l'Ecole Doctorale Theodore Monod, Drexel University French research ministry; Ministry of Research, France Region Nouvelle Aquitaine; Region Nouvelle-Aquitaine
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Chemical and Biological Engineering
- Web of Science ID
- WOS:000561904300001
- Scopus ID
- 2-s2.0-85090116212
- Other Identifier
- 991019168884304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Electrochemistry
- Materials Science, Coatings & Films