Silica supported copper and cerium oxide catalysts for ethyl acetate oxidation

Tanya Tsoncheva; Gloria Issa; Teresa Blasco; Patricia Concepcion; Momtchil Dimitrov; Selene Hernández; Daniela Kovacheva; Genoveva Atanasova; José M López Nieto

doi:10.1016/j.jcis.2013.05.005

Silica supported copper and cerium oxide catalysts for ethyl acetate oxidation

J Colloid Interface Sci. 2013 Aug 15:404:155-60. doi: 10.1016/j.jcis.2013.05.005. Epub 2013 May 14.

Authors

Tanya Tsoncheva¹, Gloria Issa, Teresa Blasco, Patricia Concepcion, Momtchil Dimitrov, Selene Hernández, Daniela Kovacheva, Genoveva Atanasova, José M López Nieto

Affiliation

¹ Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria. tsoncheva@orgchm.bas.bg

PMID: 23743049
DOI: 10.1016/j.jcis.2013.05.005

Abstract

The formation of active sites in the silica supported copper and cerium oxide bi-component catalysts for total oxidation of ethyl acetate was studied by Nitrogen physisorption, XRD, XPS, UV-Vis, Raman, FTIR of adsorbed CO spectroscopies and TPR. It was found that the interaction between the copper oxide nanoparticles and the supported on the silica ceria ones is realized with the formation of interface layer of penetrated into ceria lattice copper ions in different oxidative state. This type of interaction improves the dispersion of copper oxide particles and provides higher accessibility of the reactants to the copper active sites even at low copper amount.