Catalytic VOCs elimination over copper and cerium oxide modified mesoporous SBA-15 silica

Authors: Tanya Tsoncheva, Gloria Issa, Teresa Blasco, Momtchil Dimitrov, Margarita Popova, Selene Hernández, Daniela Kovacheva, Genoveva Atanasova, José M. López Nieto

Abstract:
Copper and cerium oxide bi-component materials with different Cu/Ce ratio were prepared using ordered SBA-15 silica as a support and compared with their bulk analogs. The samples were characterized by nitrogen physisorption, XRD, UV-Vis, FTIR, XPS, Raman spectroscopy and TPR with hydrogen. Cyclohexanol conversion was used as a catalytic test to obtain more information for the surface properties of the supported materials. The catalytic properties of the samples were studied in VOCs oxidation using toluene and ethyl acetate as probe molecules. A strong effect of mesoporous silica support and samples composition on the formation of catalytic sites was established.

Keywords:
VOCs oxidation
Copper and cerium oxide catalysts
SBA-15 support
Catalytic sites

Published in: Applied catalysis A: General  (Volume 453, Pages 1-402, 26 February 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Catalytic VOCs elimination over copper and cerium oxide modified mesoporous SBA-15 silica

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