Electrochemical kinetics as a function of transition metal dichalcogenide thickness
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00545412" target="_blank" >RIV/61388955:_____/21:00545412 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0322106" target="_blank" >http://hdl.handle.net/11104/0322106</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2021.139027" target="_blank" >10.1016/j.electacta.2021.139027</a>
Alternative languages
Result language
angličtina
Original language name
Electrochemical kinetics as a function of transition metal dichalcogenide thickness
Original language description
Two-dimensional transition metal dichalcogenides are used as electroactive materials for electrochemical and electrocatalytic applications. However, it remains unclear how transition metal dichalcogenide thickness influences the electrochemical response measured at its surface. We use scanning electrochemical cell microscopy to assess the electrochemical response of different thicknesses of bottom-contacted MoS2, MoSe2, WS2, and WSe2 towards the simple outer-sphere redox couple [Ru(NH3)(6)](3+/2+) with submicron spatial resolution. A detailed analysis, coupling mass transport and electrochemical kinetics, reveals that the electrochemical response can be described using an electron tunneling barrier, which scales with the band gap of the two-dimensional transition metal dichalcogenide. Our results suggest that interpretation of the electrochemical and electrocatalytic responses on transition metal dichalcogenide-covered electrodes should account for the through-layer electron transport kinetics. (C) 2021 Elsevier Ltd. All rights reserved.
Czech name
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Czech description
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Classification
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Electrochimica acta
ISSN
0013-4686
e-ISSN
1873-3859
Volume of the periodical
393
Issue of the periodical within the volume
OCT 2021
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
139027
UT code for WoS article
000692096000005
EID of the result in the Scopus database
2-s2.0-85112776271