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

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• 作者：Tanya Tsoncheva^a ; ^{tsoncheva@orgchm.bas.bg} ; Gloria Issa^a ; Teresa Blasco^b ; Momtchil Dimitrov^a ; Margarita Popova^a ; Selene Herná ; ndez^b ; Daniela Kovacheva^c ; Genoveva Atanasova^c ; José ; M. Ló ; pez Nieto^b
• 关键词：VOCs oxidation ; Copper and cerium oxide catalysts ; SBA-15 support ; Catalytic sites
• 刊名：Applied Catalysis A: General
• 出版年：2013
• 出版时间：26 February, 2013
• 年：2013
• 卷：453
• 期：Complete
• 页码：1-12
• 全文大小：1047 K

文摘

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.