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  • Title: Silica nanoparticles for template synthesis of supported Pt and Pt-Ru electrocatalysts.
    Author: Li A, Zhao JX, Pierce DT.
    Journal: J Colloid Interface Sci; 2010 Nov 15; 351(2):365-73. PubMed ID: 20728899.
    Abstract:
    A simple method was developed for the template synthesis of silica-supported Pt and bimetallic Pt-Ru nanocatalysts. The synthesis used amine-functionalized silica nanoparticles as both template and support for the formation of metal nanoclusters with a precise composition, narrow size distribution, uniform shape and close spatial association. The nanocatalysts were compared with a commercial Pt-C catalyst used in fuel cell applications. Electrochemical measurements of methanol oxidation demonstrated higher catalytic activity for silica-supported Pt nanocatalysts and a reduced CO poisoning effect from co-templating of Pt and Ru.
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