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Chemical Recycling of Poly(ethylene terephthalate) (PET) by Hydrolysis and Glycolysis

Teddy, J, Falqui, A, Corrias, A, Carta, Daniela, Lecante, P, Gerber, I and Serp, P (2011) Chemical Recycling of Poly(ethylene terephthalate) (PET) by Hydrolysis and Glycolysis Journal of Catalysis, 278 (1). pp. 59-70.

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The influence of PtRu bimetallic particle size and composition on cinnamaldehyde selective hydrogenation has been investigated for the first time using well-defined catalysts based on carbon nanotubes support. Very high selectivity towards cinnamyl alcohol together with high activity have been obtained provided a high temperature treatment of the catalyst is performed. HRTEM, WAXS and EXAFS analyses permit us to conclude that the remarkable influence of this high temperature treatment on both activity and selectivity arises from different phenomena. First, a particle size and a structural effect have been evidence that permits to increase the selectivity. WAXS and EXAFS point the formation of alloyed PtRu nanoparticles. Second, the heat treatment allows the removal of oxygenated groups from CNT surface. This may increase the cinnamaldehyde adsorption capacity and decrease the activation barrier for diffusion of substrate and product on the CNT surface, thus contributing to an increase in the activity.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
Teddy, J
Falqui, A
Corrias, A
Lecante, P
Gerber, I
Serp, P
Date : 2011
DOI : 10.1016/j.jcat.2010.11.016
Uncontrolled Keywords : Carbon nanotubes; Bimetallic catalysts; Selective hydrogenation; Platinum–ruthenium
Depositing User : Users 8002 not found.
Date Deposited : 31 Aug 2017 14:37
Last Modified : 06 Jul 2019 05:24

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