Reactive deposition of Pt single-atoms on g-C3N4: effect of Pt-precursors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73632850" target="_blank" >RIV/61989592:15640/25:73632850 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2025/nr/d5nr03212a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/nr/d5nr03212a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d5nr03212a" target="_blank" >10.1039/d5nr03212a</a>
Alternative languages
Result language
angličtina
Original language name
Reactive deposition of Pt single-atoms on g-C3N4: effect of Pt-precursors
Original language description
Anchoring Pt single atoms (SAs) as co-catalysts on g-C3N4 has emerged as a promising approach to enhance the hydrogen production performance of this photocatalytic system. Particularly, by so-called reactive deposition, a maximum hydrogen evolution reaction performance can be achieved using a minimum amount of Pt loading. In this study, we explore the effects of different platinum (Pt) precursors on the reactive deposition of SAs onto g-C3N4, aiming to optimize the performance in photocatalytic hydrogen production. By examining a variety of Pt precursor types, we highlight critical parameters influencing deposition, including precursor charge, solution pH, ionic strength, and ligand properties. Our results reveal that precursors bearing anionic charges are distinctly more effective than cationic precursors for depositing highly active Pt SAs. Crucially, we find that the surface deposition reaction strongly depends on the ligand involved, with chloride-based complexes enabling more efficient Pt attachment compared to bromide-based complexes. Notably, variations in the oxidation state of platinum (Pt4+versus Pt2+) did not significantly influence deposition outcomes. Among all precursors studied, (NH4)2[PtCl6] achieved the highest catalytic activity, with optimal Pt loading (similar to 0.026 wt%) and superior hydrogen evolution rates surpassing the widely utilized H2[PtCl6] precursor. Furthermore, adjustments to solution conditions, such as significant pH changes due to increased ionic strength, were found to negatively impact deposition and catalytic effectiveness. These insights underscore the importance of precursor selection and solution chemistry control, providing a robust basis for the development of efficient and cost-effective single-atom photocatalysts formed by adsorption-reaction treatments.
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
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale
ISSN
2040-3364
e-ISSN
2040-3372
Volume of the periodical
17
Issue of the periodical within the volume
41
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
23940-23947
UT code for WoS article
001588194300001
EID of the result in the Scopus database
2-s2.0-105018720929