Electrocatalytic Activity of Carbon Nanotube-Supported Pt-Cr-Co Tri-Metallic Nanoparticles for Methanol and Ethanol Oxidations

Abstract

In this work, platinum (Pt), Pt-Cr, Pt-Co, and Pt-Cr-Co nanoparticles were synthesized on single-walled carbon nanotubes, and their effects on electrocatalytic activity for methanol and ethanol oxidations were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. In comparison to Pt, Pt-Cr, and Pt-Co, Pt-Cr-Co nanoparticles demonstrate better catalytic characteristics for methanol and ethanol oxidations, such as forward peak current density, resistance to carbon monoxide poisoning, peak potential for oxidation, and charge transfer resistance. This study indicates that Pt-trimetallic nanoparticles could be desirable catalyst candidates for both direct methanol and ethanol fuel cells.

Department(s)

Physics, Astronomy, and Materials Science

Document Type

Article

DOI

https://doi.org/10.1007/s10904-011-9526-2

Publication Date

2011

Journal Title

Journal of Inorganic and Organometallic Polymers and Materials

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