Madbak E, Osborn DJ, Small T, Ishwara T, Schmidt TW, Domen K, Metha GF. Utilising triplet-triplet annihilation upconversion for overall photocatalytic water splitting.
Chem Commun (Camb) 2024;
61:157-160. [PMID:
39625009 DOI:
10.1039/d4cc03961k]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2024]
Abstract
An organic triplet-triplet annihilation upconversion system consting of Ir(coumarin-6)2(acac) and TIPS-naphthalene is used to drive overall water-splitting using the UV-active photocatalyst Rh/Cr2O3/CoOOH/Al:SrTiO3. Light from 455 and 470 nm LEDs was upconverted to 355-410 nm at 6.1% efficiency. Hydrogen production doubled at 455 nm and tripled at 470 nm, compared to controls.
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