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: https://orcid.org/0000-0002-6571-5731, Edwards, Jennifer Kelly ORCID: https://orcid.org/0000-0003-4089-2827, Knight, David William, Kiely, Christopher John ORCID: https://orcid.org/0000-0001-5412-0970, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874 and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 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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Abstract

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) Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	base-free catalysis;glycerol oxidation;gold;heterogeneous catalysis;trimetallic catalysts
Publisher:	Wiley
ISSN:	1864-5631
Last Modified:	14 Nov 2024 08:55
URI:	https://orca.cardiff.ac.uk/id/eprint/66178

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