Layered Transition-Metal Ditellurides in Electrocatalytic Applications-Contrasting Properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913380" target="_blank" >RIV/60461373:22310/17:43913380 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/17:73584556
Result on the web
<a href="http://pubs.acs.org/doi/abs/10.1021/acscatal.7b02080" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/acscatal.7b02080</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acscatal.7b02080" target="_blank" >10.1021/acscatal.7b02080</a>

Result language
angličtina
Original language name
Layered Transition-Metal Ditellurides in Electrocatalytic Applications-Contrasting Properties
Original language description
The layered compounds and especially transition-metal dichalcogenides are at the forefront of current research on electrocatalytic materials. Despite the fact that electrocatalytical properties of molybdenum and tungsten disulfides are well-known, their tellurium analogues are significantly less explored. Here we show an effective method for MoTe2 and WTe2 chemical exfoliation based on alkali metal intercalation and subsequent reaction with water. The as-synthesized and exfoliated tellurides were characterized in detail and investigated for potential application in electrocatalysis. The inherent electrochemical activity related to both cation and anion was observed. This is dominantly related to the oxidation tendency of tellurium. The MoTe2 and WTe2 show significantly contrasting properties toward the hydrogen evolution reaction, where MoTe2 shows highly increased HER activity with little dependence on electrochemical treatment, whereas WTe2 shows slightly worse improvement and strong dependence on the electrochemical treatment. In particular, the exfoliated MoTe2 exhibits improved electrocatalytic activity for hydrogen evolution reaction and possesses a huge application potential.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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