Valence and oxide impurities in MoS2 and WS2 dramatically change their electrocatalytic activity towards proton reduction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43901913" target="_blank" >RIV/60461373:22310/16:43901913 - isvavai.cz</a>
Result on the web
<a href="http://pubs.rsc.org/-/content/articlehtml/2016/nr/c6nr03086f" target="_blank" >http://pubs.rsc.org/-/content/articlehtml/2016/nr/c6nr03086f</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6nr03086f" target="_blank" >10.1039/c6nr03086f</a>
Alternative languages
Result language
angličtina
Original language name
Valence and oxide impurities in MoS2 and WS2 dramatically change their electrocatalytic activity towards proton reduction
Original language description
Layered molybdenum disulfide (MoS2) and tungsten disulfide (WS2) have received renewed interest in recent years as they are catalytic towards the hydrogen evolution reaction (HER) and they are touted as future replacements of platinum in electrolyzers. There is a significant discrepancy in the found onset potentials of MoS2 and WS2 towards the hydrogen evolution reaction. Here we show that the presence of valence sulfide impurities, such as MoS3 and WS3, and their oxide counterparts, such as MoO2, MoO3 and WO2, WO3 can contribute to the catalytic activity towards hydronium reduction to hydrogen of MoS2 and WS2. Therefore, it is highly possible that the differences in the reported onset potentials and thus catalytic activities of the MoS2 and WS2 are due to the presence of catalytic impurities.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA16-05167S" target="_blank" >GA16-05167S: Ion beam modifications of graphene based structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale
ISSN
2040-3364
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
37
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
16752-16760
UT code for WoS article
000387857700021
EID of the result in the Scopus database
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