首页|Plasmonic Au activates anchored Pt-Si bond in Au-Pt-SiC promoting photocatalytic hydrogen production
Plasmonic Au activates anchored Pt-Si bond in Au-Pt-SiC promoting photocatalytic hydrogen production
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NSTL
Elsevier
The localized surface plasmon resonance effect (LSPR) with kinetic energies and interfacial transfer dynamics can highly improve the separation of photo-generated carriers. We demonstrate here that a plasmonic catalyst Au-Pt-SiC has been prepared by a facile reduction-photo-deposition technique. The Pt-Si bond is formed on the SiC surface to construct an excellent channel for accelerating photo-electrons transfer from SiC to Pt. The LSPR of Au with electrons-deficiency property further activates the anchored Pt-Si bond, and motivates an oriented high-efficient photo-electrons transport channel among the Au, Pt and SiC. This channel accelerates the excited electrons in SiC to transfer to cocatalysts and thus improves the photo-generated charge carriers separation. The LSPR of Au also harvests light energy efficiently to broaden the light absorption range. Consequently, the rate of photocatalytic water reduction for H-2 is enhanced to 2248.5 mu L h(-1) g(-1) in Au-Pt-SiC, 2.1 times higher than that of the individual Pt loading. (C) 2022 Elsevier B.V. All rights reserved.
NSTL
Elsevier
