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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Paper Title:

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.

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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, X. J. Yin, L. F. Lew, S. Y. Tan, "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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