Cd/Pt precursor solution for solar H2 production and in situ photochemical synthesis of Pt single-atom decorated CdS aanoparticles..

Sharma, Pankaj ORCID: https://orcid.org/0000-0003-2319-260X, Sharma, Monika, Dearg, Malcolm, Wilding, Martin, Slater, Thomas J. A. ORCID: https://orcid.org/0000-0003-0372-1551 and Catlow, C. Richard A. ORCID: https://orcid.org/0000-0002-1341-1541 2023. Cd/Pt precursor solution for solar H2 production and in situ photochemical synthesis of Pt single-atom decorated CdS aanoparticles.. Angewandte Chemie , pp. 1-11. 10.1002/ange.202301239

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Abstract

Despite extensive efforts to develop high-performance H2 evolution catalysts, this remains a major challenge. Here, we demonstrate the use of Cd/Pt precursor solutions for significant photocatalytic H2 production (154.7 mmol g−1 h−1), removing the need for a pre-synthesized photocatalyst. In addition, we also report simultaneous in situ synthesis of Pt single-atoms anchored CdS nanoparticles (PtSA-CdSIS) during photoirradiation. The highly dispersed in situ incorporation of extensive Pt single atoms on CdSIS enables the enhancement of active sites and suppresses charge recombination, which results in exceptionally high solar-to-hydrogen conversion efficiency of ≈1 % and an apparent quantum yield of over 91 % (365 nm) for H2 production. Our work not only provides a promising strategy for maximising H2 production efficiency but also provides a green process for H2 production and the synthesis of highly photoactive PtSA-CdSIS nanoparticles.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry
Publisher:	Wiley
ISSN:	0044-8249
Date of First Compliant Deposit:	4 April 2023
Date of Acceptance:	14 February 2023
Last Modified:	06 Jul 2023 20:01
URI:	https://orca.cardiff.ac.uk/id/eprint/158311

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