ZHANG Chun¹, WANG Xiao-hong^1,2, ZENG Zhi-gang¹, HU Zhi-yu^1*
(1. Institute of Nano/Micro Energy, Shanghai University, Shanghai 200444, China; 2. Key Laboratory of Advanced Display and System Applications, EMC , Shanghai University, Shang hai 200072, China)

Abstract: Different kinds of Pt catalysts were prepared to study their room-temperature combustion of methanol. The effect of support species, support properties and platinum loading on the performance of the catalysts were studied. The results showed that all these catalysts can catalyze the methanol combusting at room temperature. As the catalyst support, alumina is superior to silicon and alumina film is better than alumina paritcle. When the species and properties of the support are all same, the catalysts prepared by chemical dispersion method is better than that prepared by magnetron sputtering method. Besides, increasing the platinum loading may not reasonably increase the catalytic activity. In our experiments, the methanol conversion of unit mass of platinum increased by 26 times when platinum loading decreased two orders of magnitude.
Key words: room temperature; catalytic combustion; film; support
E-mail: zhiyuhu@shu.edu.cn
Journal of Molecular Catalysis, Vol. 25, Issue 3, 2011, 220~225