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Base-free oxidation of glycerol using titania-supported trimetallic Au-Pd-Pt nanoparticles

Kondrat, Simon A., Miedziak, Peter John, Douthwaite, Mark, Brett, Gemma Louise, Davies, Thomas, Morgan, David John ORCID:, Edwards, Jennifer Kelly ORCID:, Knight, David William, Kiely, Christopher John ORCID:, Taylor, Stuart H. ORCID: and Hutchings, Graham John ORCID: 2014. Base-free oxidation of glycerol using titania-supported trimetallic Au-Pd-Pt nanoparticles. Chemsuschem 7 (5) , pp. 1326-1334. 10.1002/cssc.201300834

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Base-free selective oxidation of glycerol has been investigated using trimetallic Au–Pd–Pt nanoparticles supported on titania and their corresponding bimetallic catalysts. Catalysts were prepared by the sol-immobilization method and characterized by means of TEM, UV/Vis spectroscopy, diffuse reflectance infrared fourier transform spectroscopy, X-ray photoelectron spectroscopy, and microwave plasma–atomic emission spectroscopy. It was found that of the bimetallic catalysts, Pd–Pt/TiO2 was the most active with high selectivity to C3 products. The addition of Au to this catalyst to form the trimetallic Au–Pd–Pt/TiO2, resulted in an increase in activity relative to Pd–Pt/TiO2. The turnover frequency increased from 210 h−1 with the Pd–Pt/TiO2 catalyst to378 h−1 for the trimetallic Au–Pd–Pt/TiO2 catalyst with retention of selectivity towards C3 products.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: base-free catalysis;glycerol oxidation;gold;heterogeneous catalysis;trimetallic catalysts
Publisher: Wiley
ISSN: 1864-5631
Last Modified: 17 Aug 2023 01:12

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