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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918142" target="_blank" >RIV/60461373:22310/19:43918142 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/19:PU134076

Výsledek na webu

<a href="https://pubs.acs.org/doi/pdf/10.1021/acssuschemeng.9b03637" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acssuschemeng.9b03637</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acssuschemeng.9b03637" target="_blank" >10.1021/acssuschemeng.9b03637</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

The cathodic process in electrochemical water electrolyzers, the hydrogen evolution reaction (HER), is an extremely important reaction as it produces clean H-2 gas that can be utilized in a fuel cell to create electricity as an energy source for the increasing energy consumption of today&apos;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.

Název v anglickém jazyce

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

Popis výsledku anglicky

The cathodic process in electrochemical water electrolyzers, the hydrogen evolution reaction (HER), is an extremely important reaction as it produces clean H-2 gas that can be utilized in a fuel cell to create electricity as an energy source for the increasing energy consumption of today&apos;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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GX19-26896X" target="_blank" >GX19-26896X: Elektrochemie 2D Nanomateriálů</a><br>

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Sustainable Chemistry &amp; Engineering

ISSN

2168-0485

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

16440-16449

Kód UT WoS článku

000489986400066

EID výsledku v databázi Scopus

2-s2.0-85073256389