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The selective oxidation of 1,2-propanediol to lactic acid using mild conditions and gold-based nanoparticulate catalysts

Ryabenkova, Yulia, He, Qian, Miedziak, Peter John, Dummer, Nicholas, Taylor, Stuart Hamilton, Carley, Albert Frederick, Morgan, David John, Dimitratos, Nikolaos, Willock, David James, Bethell, Donald, Knight, David William, Chadwick, David, Kiely, Christopher John and Hutchings, Graham John 2013. The selective oxidation of 1,2-propanediol to lactic acid using mild conditions and gold-based nanoparticulate catalysts. Catalysis Today 203 , pp. 139-145. 10.1016/j.cattod.2012.05.037

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Abstract

The use of bio-renewable resources for the generation of materials and chemicals continues to attract significant research attention. It is well established that glycerol is an excellent starting material for the production of 1,2-propanediol by dehydration/hydrogenation and that this can subsequently be oxidised to lactic acid, which has the potential to be used as a major chemical in the production of biodegradable polymers. Previous studies using gold catalysts for the oxidation of 1,2-propanediol have used elevated temperatures and pressures. We now show that the oxidation of 1,2-propanediol to form lactic acid can be carried out selectively under mild reaction conditions with gold–platinum catalysts prepared using a sol-immobilisation method, with activated carbon as the support. Carrying out the reaction at ambient temperature with air significantly improves the reaction in terms of its environmental impact and its industrial attractiveness, as lactic acid can be obtained with high selectivity.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Gold catalysis; Gold platinum alloy nanoparticles; Lactic acid; 1,2-Propanediol oxidation
Publisher: Elsevier
ISSN: 0920-5861
Funders: Technology Strategy Board
Last Modified: 10 Jun 2019 21:30
URI: http://orca.cf.ac.uk/id/eprint/38898

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