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Synthesis of Carbon-Supported Pt-Ru Catalysts using a Flame Spray Pyrolysis Method for Fuel Electrode of Low Temperature Fuel Cell  

Lee, Hyun-Min (School of Mechanical Engineering, Pusan Clean Coal Center, RIMT, Pusan National University)
Lee, Dong-Geun (School of Mechanical Engineering, Pusan Clean Coal Center, RIMT, Pusan National University)
Publication Information
Particle and aerosol research / v.8, no.2, 2012 , pp. 69-74 More about this Journal
Abstract
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 nm to ~2.0 nm. 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
Flame aerosol method; PtRu/C catalyst; Single step method; CO stripping;
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