Structural transition induced by niobium doping in layered titanium disulfide: The impact on electrocatalytic performance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU136544" target="_blank" >RIV/00216305:26620/20:PU136544 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/20:43920426
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2352940720300020?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352940720300020?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apmt.2019.100555" target="_blank" >10.1016/j.apmt.2019.100555</a>
Alternative languages
Result language
angličtina
Original language name
Structural transition induced by niobium doping in layered titanium disulfide: The impact on electrocatalytic performance
Original language description
Transition metal dichalcogenide layered structures have become the focus of special attention for electrochemical applications in recent years. Although various engineering strategies, including size reduction and composition manipulation, have been adopted to modulate the innate electrochemical features of these layered materials, there remains a great deal of work to satisfy the specific requirements for practical applications. In this work, we set forth to provide an insight into the impact of niobium (Nb) doping on the structural features of titanium disulfide (TiS2). In addition, we examine the influence of Nb dopant on the inherent electrochemistry and charge transfer kinetics of TiS2 and its implication for the hydrogen evolution, oxygen reduction and oxygen evolution reaction (HER, ORR, and OER) processes. It has been found that introducing an appropriate amount of Nb atom (>10%) results in the formation of titanium trisulfide (TiS3) belt-like structures on the surface of TiS2 polygonal discs. Nb doping marginally changes the inherent electroactivity of TiS2 through introducing a small trace of reducible species. Furthermore, Nb-doped TiS2 materials show improved electron transfer kinetics when compared to pure TiS2, with the fastest kobs 0 of 5.58 × 10−4 cm s−1 toward [Fe(CN)6]3−/4− redox probe recorded for Ti0.95Nb0.05S2. The same trend is also found in the HER activity of these materials whereby Nb-doped TiS2 materials exhibit better performance in the electrocatalytic hydrogen evolution.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GX19-26896X" target="_blank" >GX19-26896X: 2D Nanomaterials Electrochemistry</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Materials Today
ISSN
2352-9407
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
„100555-1“-„100555-10“
UT code for WoS article
000545903500005
EID of the result in the Scopus database
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