Ultrapure Molybdenum Disulfide Shows Enhanced Catalysis for Hydrogen Evolution over Impurities-Doped Counterpart

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913392" target="_blank" >RIV/60461373:22310/17:43913392 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1002/cctc.201601561/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/cctc.201601561/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cctc.201601561" target="_blank" >10.1002/cctc.201601561</a>

Result language

angličtina

Original language name

Ultrapure Molybdenum Disulfide Shows Enhanced Catalysis for Hydrogen Evolution over Impurities-Doped Counterpart

Original language description

The development of electrocatalysts to meet the requirements of renewable energy applications has seen much attention placed on transition-metal dichalcogenide (TMD) materials owing to their promising properties. In particular, the strategy of atomic doping has garnered some success in tuning the electronic properties and harnessing the vast potential that TMDs can offer in the catalysis of the hydrogen evolution reaction (HER). Moreover, with computational studies reporting the promising effects of transition-metal doping, such a strategy has been adopted with much enthusiasm. Herein, we consider one of the most prevalent TMDs, that is, MoS2, and the possible presence of impurities arising from its preparation method and starting materials that may act as dopants to affect its electronic and catalytic properties. An ultrapure MoS2 material was synthesized and compared with a relatively impure MoS2 sample obtained commercially. Ultrapure MoS2 was found to outperform its impurities-doped counterpart in HER catalysis. These findings not only provide valuable insight into the influence of parts-per-million concentrations of impurities on the catalytic activity of TMD materials but also highlight the importance of the intentional and proper design of atomic doping to realize its true effects. At the same time, the need for a more in-depth understanding and evaluation of the benefits of the atomic-doping strategy in the experimental setting as a means to harness the potential of TMDs as catalysts for hydrogen evolution is also revealed.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

<a href="/en/project/GA16-05167S" target="_blank" >GA16-05167S: Ion beam modifications of graphene based structures</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Name of the periodical

ChemCatChem

ISSN

1867-3880

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

7

Country of publishing house

DE - GERMANY

Number of pages

4

Pages from-to

1168-1171

UT code for WoS article

000398859500004

EID of the result in the Scopus database

2-s2.0-85013871952