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

Zong, Zi Yi; Yin, Xi Jiang; Lew, Li Fang; Tan, Soo Yee

doi:10.4028/www.scientific.net/KEM.334-335.1025

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Home Key Engineering Materials Advances in Composite Materials and StructuresSiO2 (core)-TiO2 (shell) Structure as Catalyst...

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

Abstract:

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.

Info:

Periodical:

Key Engineering Materials (Volumes 334-335)

Main Theme:

Advances in Composite Materials and Structures

Edited by:

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

Pages:

1025-1028

DOI:

10.4028/www.scientific.net/KEM.334-335.1025

Citation:

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

Authors:

Zi Yi Zong, Xi Jiang Yin, Li Fang Lew, Soo Yee Tan

Keywords:

CO Oxidation, Nanosized Au Partcles, SiO₂(core)-TiO₂(shell) Structure

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