Minuscule Amounts of Pt Single Atoms Selectively Loaded on Minor (101) Facet of Anatase Crystallites Enables Outstanding Utilization Efficiency for Photocatalytic H2 Production
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73632852" target="_blank" >RIV/61989592:15640/25:73632852 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/25:10258708
Result on the web
<a href="https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.202423088" target="_blank" >https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.202423088</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adfm.202423088" target="_blank" >10.1002/adfm.202423088</a>
Alternative languages
Result language
angličtina
Original language name
Minuscule Amounts of Pt Single Atoms Selectively Loaded on Minor (101) Facet of Anatase Crystallites Enables Outstanding Utilization Efficiency for Photocatalytic H2 Production
Original language description
Pt single atoms (SAs) on TiO2 have been identified as effective co-catalysts in solar photocatalytic H-2 production. In this study, Pt SAs is deposited on single crystal anatase nanosheets (NSs) with minor (101) and major (001) facets and expose them to various thermal treatments in air, Ar, and Ar-H-2 environments. It is found that through Ar-H-2 annealing Pt-species can be accumulated exclusively on the minor (101) facets, i.e., they can be concentrated selectively on the facet where electron exit occurs. This optimally establishes a high photocatalytic H-2 evolution efficiency for an extremely low overall Pt SA loading of approximate to 0.005 wt.% on the anatase crystallites. For this most active SA placement, 11.7 mmol g(-1) h(-1) H-2 production is obtained with a turnover frequency (TOF) up to 253 #H-2 site(-1) s(-1). Note that the corresponding Pt SAs density of 3.1 x 10(4) atoms mu m(-2) is established by loading from only 0.2 mu m Pt solution. These findings demonstrate that placing a very low density of Pt SAs as an electron transfer co-catalyst onto the electron exit sites of a light-harvesting structure (i.e., there where it is needed) can provide a most active photocatalytic structure with an outstanding Pt utilization.
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
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Advanced Hybrid Nanostructures for Renewable Energy Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ADVANCED FUNCTIONAL MATERIALS
ISSN
1616-301X
e-ISSN
1616-3028
Volume of the periodical
35
Issue of the periodical within the volume
24
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
nestránkováno
UT code for WoS article
001411546900001
EID of the result in the Scopus database
2-s2.0-85216508537