Particle and Aerosol Research Vol. 8, No. 2, June 2012 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Synthesis of Carbon-Supported Pt-Ru Catalysts using a Flame Spray Pyrolysis Method for Fuel Electrode of Low Temperature Fuel Cell
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Abstracts
This study describes how successfully a conventional flame aerosol synthesis was used to continuously synthesize Pt-Ru catalysts supported by carbon agglomerates. Nearly spherical catalysts produced in the flame were mainly composed of metallic Pt and Ru with the molar ratio of 1:1 and those sizes were controllable from ~1.5 §¬ to ~2.0 §¬. Nevertheless, only Pt peaks were found from X-ray diffraction experiments, suggesting that amorphous-like Ru was well mixed in the crystalline Pt lattices. It was found from Cyclo-voltamograms and CO stripping experiments that the electrochemical properties of the catalysts are at least comparable to that of a conventional commercial sample.
Keywords£ºFlame aerosol method; PtRu/C catalyst; Single step method; CO stripping
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