Particle and Aerosol Research Vol. 8, No. 2, June 2012 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Synthesis of Pt/alloy Nanoparticles by Electrical Wire Explosion in Liquid Media and its Characteristics
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Abstracts
The electrical wire explosion process in liquid media is promising for nano-sized metal and/or alloy particles. The hybrid Pt/Fe-Cr-Al and Pt/Ni-Cr-Fe nanoparticles for exhaust emission control system are synthesized by electrical wire explosion process in liquid media. The alloy powders have spherical shape and nanometer size. According to the wire component, while Pt/Fe-Cr-Al nanoparticles are shown the well dispersed Pt on the Fe-Cr-Al core particle, Pt/Ni-Cr-Fe nanoparticles are shown the partially separated Pt on the Ni-Cr-Fe core particle. Morphologies and component of two kinds of hybrid nano catalyst particles were characterized by transmission electron microscope and energy dispersive X-ray spectroscopy analysis.
Keywords£ºPt/alloy nanoparticle, electrical wire explosion (EWE), Fe-Cr-Al, Ni-Cr-Fe, catalyst.
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