Nano Archive

Preparation and characterization of silane stabilized, highly uniform, nanobimetallic Pt-Pd particles in solid and liquid matrices

D'Souza, Lawrence and Sampath, S. (2000) Preparation and characterization of silane stabilized, highly uniform, nanobimetallic Pt-Pd particles in solid and liquid matrices. Langmuir, 16 (22). pp. 8510-8517.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/la000496y

Abstract

Highly uniform, stable nanobimetallic dispersions are prepared in a single step in the form of sols, gels, and monoliths, using organically modified silicates as the matrix and the stabilizer. The Pt−Pd bimetallic dispersions are characterized by UV−vis, TEM, SEM, and XRD measurements. The evolution of silicate was followed by IR spectroscopy. XPS and CO adsorption studies reveal that the structure of the particles consists of a palladium core and a platinum shell. Electrocatalysis of ascorbic acid oxidation has been demonstrated using thin films of silicate containing the nanobimetal particles on a glassy carbon electrode.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanostructured materials
Material Science > Nanochemistry
Material Science > Soft materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4155
Deposited By:JNCASR
Deposited On:03 Apr 2009 05:29
Last Modified:03 Apr 2009 05:29

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