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 language | English |
|---|---|
| Pages (from-to) | 16440-16449 |
| Number of pages | 10 |
| Journal | ACS Sustainable Chemistry and Engineering |
| Volume | 7 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 2019 Oct 7 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Environmental Chemistry
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
Cite this
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2H and 2H/1T-Transition Metal Dichalcogenide Films Prepared via Powderless Gas Deposition for the Hydrogen Evolution Reaction. / Browne, Michelle P.; Novotný, Filip; Manzanares Palenzuela, C. Lorena; Šturala, Jiří; Sofer, Zdenek; Pumera, Martin.
In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 19, 07.10.2019, p. 16440-16449.Research output: Contribution to journal › Article
TY - JOUR
T1 - 2H and 2H/1T-Transition Metal Dichalcogenide Films Prepared via Powderless Gas Deposition for the Hydrogen Evolution Reaction
AU - Browne, Michelle P.
AU - Novotný, Filip
AU - Manzanares Palenzuela, C. Lorena
AU - Šturala, Jiří
AU - Sofer, Zdenek
AU - Pumera, Martin
PY - 2019/10/7
Y1 - 2019/10/7
N2 - 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.
AB - 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.
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U2 - 10.1021/acssuschemeng.9b03637
DO - 10.1021/acssuschemeng.9b03637
M3 - Article
AN - SCOPUS:85073256389
VL - 7
SP - 16440
EP - 16449
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
SN - 2168-0485
IS - 19
ER -