Ultra-thin porous silica coated silver–platinum alloy nano-particle as a new catalyst precursor

Kai Man K. Yu; David Thompsett; Shik Chi Tsang

doi:10.1039/B303989G

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Ultra-thin porous silica coated silver–platinum alloy nano-particle as a new catalyst precursor†

Kai Man K. Yu,^a David Thompsett^b and Shik Chi Tsang*^a

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* Corresponding authors

^a The Surface and Catalysis Research Centre, Department of Chemistry, University of Reading, Whiteknights, Reading, UK
E-mail: s.c.e.tsang@reading.ac.uk

^b Johnson Matthey Technology Centre, Sonning Common, Reading, UK

Abstract

Templated sol–gel encapsulation of surfactant-stabilised micelles containing metal precursor(s) with ultra-thin porous silica coating allows solvent extraction of organic based stabiliser from the composites in colloidal state hence a new method of preparing supported alloy catalysts using the inorganic silica-stabilised nano-sized, homogenously mixed, silver–platinum (Ag–Pt) colloidal particles is reported.

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Supplementary files

FTIR spectra showing the Si-O band shift due to the presence of Al-O-Si bonding (Fig. S1) and optical spectra of Silica-gel@5%Pt and Silica-gel@5%(Ag _0.67Pt _0.33)powders (Fig. S2). DOC (615K)

Article information

DOI: https://doi.org/10.1039/B303989G
Article type: Communication
Submitted: 09 Apr 2003
Accepted: 16 Apr 2003
First published: 30 May 2003

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Chem. Commun., 2003, 1522-1523

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Ultra-thin porous silica coated silver–platinum alloy nano-particle as a new catalyst precursor

K. M. K. Yu, D. Thompsett and S. C. Tsang, Chem. Commun., 2003, 1522 DOI: 10.1039/B303989G

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Chemical Communications

Ultra-thin porous silica coated silver–platinum alloy nano-particle as a new catalyst precursor†

Abstract

Supplementary files

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Ultra-thin porous silica coated silver–platinum alloy nano-particle as a new catalyst precursor

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