SiO2 (core)-TiO2 (shell) Structure as Catalyst Support for Oxidation of CO at Low Temperatures


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In this study, TiO2 was successfully coated on Stober silica beads followed by depositing Au nanoparticles on this core-shell structure. The size of the Au nanoparticles was well controlled in the range of 2 – 7 nm. This composite exhibited high thermal stability. When used as a model catalyst for oxidation of CO at low temperatures, the Au/TiO2/SiO2 showed a much higher catalytic activity than the Au/SiO2 and Au/TiO2(P25) catalysts.



Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang




Z. Y. Zong et al., "SiO2 (core)-TiO2 (shell) Structure as Catalyst Support for Oxidation of CO at Low Temperatures", Key Engineering Materials, Vols. 334-335, pp. 1025-1028, 2007

Online since:

March 2007




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