Co-core-Pt-shell nanoparticles as cathode catalyst for PEM fuel cells

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Journal Article
Journal of Solid State Electrochemistry, 2012, 16 (3), pp. 1105 - 1110
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Nanoscale Co-core-Pt-shell particles were successfully synthesized based on a successive reduction strategy. The as-prepared core-shell nanoparticles were characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy, transmission electron microscope, and electrochemical methods. It was found that the catalytic reactivity of Co-core-Pt-shell/C catalysts toward oxygen reduction was enhanced. It is believed that the prepared Co-core-Pt-shell/C nanoparticles could be promising for cathode catalysis in proton exchange membrane fuel cells with much reduced Pt content, but significantly increased catalytic activity.
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