Paper Title:
Synthesis of Au Nanoparticles@Mesoporous Silica Templated by Neutral Block Copolymers: Application in CO Oxidation
  Abstract

A citrate-stabilizing Au nanoparticles aqueous solution was prepared at near 0 oC by reducing tetracholoaurate(III) ions with sodium borohydride. Combining with Pluronic block copolymers, the citrate-stabilizing Au nanoparticles was nearly completely embedded in the mesoporous silica channels via fast silicification with silicate solution at near neutral pH. After calcination for removing organic templates, Au nanoparticles@mesoporous silicas of high surface area and pore volume were obtained. With different block copolymer, the pore size of the mesoporous silica can be tuned. The Au nanoparticles@SBA-15 mesoporous silica exhibits high catalytic activity to CO oxidation reaction.

  Info
Periodical
Materials Science Forum (Volumes 505-507)
Edited by
Wunyuh Jywe, Chieh-Li Chen, Kuang-Chao Fan, R.F. Fung, S.G. Hanson,Wen-Hsiang Hsieh, Chaug-Liang Hsu, You-Min Huang, Yunn-Lin Hwang, Gerd Jäger, Y.R. Jeng, Wenlung Li, Yunn-Shiuan Liao, Chien-Chang Lin, Zong-Ching Lin, Cheng-Kuo Sung and Ching-Huan Tzeng
Pages
655-660
DOI
10.4028/www.scientific.net/MSF.505-507.655
Citation
Y. Q. Yeh, C. W. Yen, H.-P. Lin, Y. C. Lin, T. C. Chang, "Synthesis of Au Nanoparticles@Mesoporous Silica Templated by Neutral Block Copolymers: Application in CO Oxidation", Materials Science Forum, Vols. 505-507, pp. 655-660, 2006
Online since
January 2006
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$32.00
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