Stable and Highly Active Single Atom Configurations for Photocatalytic H2 Generation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F24%3A73625346" target="_blank" >RIV/61989592:15640/24:73625346 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/adma.202400626" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/adma.202400626</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adma.202400626" target="_blank" >10.1002/adma.202400626</a>
Alternative languages
Result language
angličtina
Original language name
Stable and Highly Active Single Atom Configurations for Photocatalytic H2 Generation
Original language description
The employment of single atoms (SAs), especially Pt SAs, as co-catalysts in photocatalytic H-2 generation has gained significant attention due to their exceptional efficiency. However, a major challenge in their application is the light-induced agglomeration of these SAs into less active nanosized particles under photocatalytic conditions. This study addresses the stability and reactivity of Pt SAs on TiO2 surfaces by investigating various post-deposition annealing treatments in air, Ar, and Ar-H-2 environments at different temperatures. It is described that annealing in an Ar-H-2 atmosphere optimally stabilizes SA configurations, forming stable 2D rafts of assembled SAs approximate to 0.5-1 nm in diameter. These rafts not only resist light-induced agglomeration but also exhibit significantly enhanced H-2 production efficiency. The findings reveal a promising approach to maintaining the high reactivity of Pt SAs while overcoming the critical challenge of their stability under photocatalytic conditions.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ADVANCED MATERIALS
ISSN
0935-9648
e-ISSN
1521-4095
Volume of the periodical
36
Issue of the periodical within the volume
25
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
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UT code for WoS article
001196749200001
EID of the result in the Scopus database
2-s2.0-85189459563