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Abstract
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In this study, we report the synthesis of Co@Pt nanoparticles via a fast and simple method
and the fabrication of an anodic electrocatalyst, Co@Pt supported on carbon-ceramic
substrate, for fuel cell applications. The present synthesis method is very facile and
economical which may be suitable for large-scale production of Co@Pt nanoparticles with
high activity. The surface morphology, structure and composition of the as-prepared core
eshell nanoparticles were characterized by scanning electron microscopy, high resolution
transmission electron microscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy.
Then, the electrooxidation of ethylene glycol (EG) and glycerol (Gly) was investigated
on the Co@Pt nanoparticles supported on carbon-ceramic electrode (Co@Pt/CCE) in
0.5 M H2SO4 solution. Electrocatalytic characteristics were methodically investigated by
electrochemical techniques such as cyclic voltammetry and chronoamperometry. The
Co@Pt/CCE electrocatalyst demonstrates improved specific activity toward EG and Gly
electrooxidation compared to the Pt-alone nanoparticles supported on carbon-ceramic
electrode (Pt/CCE) and also shows much high structural stability and tolerance to carbonaceous
species poisoning. Therefore, the Co@Pt/CCE can be extended as a promising
electrocatalyst for the polyol alcohols electrooxidation reactions in fuel cells.
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