Nanostructured CeO2-Al2O3 Catalytic Powders for m-Xylene and Toluene Combustion

作者：Dai Luu M; Nhiem Dao Ng; Lim Duong Th; Van Nguyen D^*

来源：Materials Transactions, 2013, 54(6): 1060-1062.

DOI：10.2320/matertrans.M2013056

• nanostructured CeO2-Al2O3
• catalyst
• m-Aylene combustion
• toluene combustion
• combustion method

The bee's nest-like nanostructured CeO2-Al2O3 powders were synthesized by combustion method using polyvinyl alcohol as a fuel and their catalytic activity were tested in the m-xylene and toluene combustion. The results showed that the catalytic reaction temperature increased monotonically from 200 to 250 degrees C and from 250 to 300 degrees C for the 90% conversion of m-xylene and toluene, respectively, with the calcination temperature in the range of 450-850 degrees C. For both combustions, the sample calcined at 450 degrees C with a bee's nest-like nanostructure and average pore size of 800 nm exhibited the highest catalytic activity. Among the samples calcined at 850 degrees C, the lowest catalytic reaction temperature for the 90% conversion of m-xylene and toluene of 250 and 300 degrees C, respectively, was found with the sample having the equimolar ratio of Ce/Al.

• 出版日期2013-6