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Plasmonic oxidation of glycerol using AuPd/TiO2 catalysts

Abis, Laura, Dimitratos, Nikolaos ORCID:, Meenakshisundaram, Sankar ORCID:, Freakley, Simon J. and Hutchings, Graham J. ORCID: 2019. Plasmonic oxidation of glycerol using AuPd/TiO2 catalysts. Catalysis Science and Technology 9 (20) , pp. 5686-5691. 10.1039/C9CY01409H

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AuPd nanoparticles supported on P25 TiO2 (AuPd/TiO2) were prepared by a facile sol-immobilisation method and investigated for surface plasmon-assisted glycerol oxidation under base-free conditions. The AuPd/TiO2 samples were characterized by UV-vis spectroscopy and transmission electron microscopy. The sol-immobilisation method readily permitted the Au : Pd molar ratio to be changed over a wide range whilst keeping the mean particle size of the AuPd nanoparticles at 3 nm. Visible light irradiation during the reaction has a beneficial effect on the conversion of glycerol with the most marked effect being observed with gold-rich catalysts and the increase of conversion on light irradiation increases linearly with the gold content of the nanoparticles. The reaction selectivity is also affected by the plasmon-assisted oxidation and glycolic acid, not observed during the dark reactions, was observed for all illuminated reactions due to the enhanced activity of these catalysts.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Royal Society of Chemistry
ISSN: 2044-4753
Date of First Compliant Deposit: 14 October 2019
Date of Acceptance: 13 September 2019
Last Modified: 09 Nov 2023 18:36

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