Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 4, Pages 925-928Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.02.030
Keywords
PdNi nanoparticles; Pd nanoparticles; Alkaline fuel cell; Methanol oxidation; Direct methanol fuel cell
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Pd and PdNi nanoparticles supported on Vulcan XC-72 carbon were prepared by a chemical reduction with formic acid process. The catalysts were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), cyclic voltammetry, and chronoamperometry. The results showed that the Pd and PdNi nanoparticles, which were uniformly dispersed on carbon, were 2-10 nm in diameters. The PdNi/C catalyst has higher electrocatalytic activity for methanol oxidation in alkaline media than a comparative Pd/C catalyst and shows great potential as less expensive electrocatalyst for methanol electrooxidation in alkaline media in direct methanol fuel cells. (C) 2009 Elsevier B.V. All rights reserved.
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