Improved catalytic performance of Pd nanowires for ethanol oxidation by monolayer of Pt

•Pd nanowires, several micrometers in length, were prepared by a simple method.•Monolayer Pt was deposited on Pd nanowires using copper underpotential deposition.•Monolayer Pt could not only improve the activity and stability of Pd nanowires. Pd nanowires with diameter of 10–20nm and length of sever...

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Bibliographic Details
Published inChemical physics letters Vol. 585; pp. 128 - 132
Main Authors Huang, Zhongyuan, Zhou, Haihui, Chang, Yiwen, Fu, Chaopeng, Zeng, Fanyan, Kuang, Yafei
Format Journal Article
LanguageEnglish
Published Elsevier B.V 14.10.2013
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Summary:•Pd nanowires, several micrometers in length, were prepared by a simple method.•Monolayer Pt was deposited on Pd nanowires using copper underpotential deposition.•Monolayer Pt could not only improve the activity and stability of Pd nanowires. Pd nanowires with diameter of 10–20nm and length of several micrometers were prepared and monolayer of Pt was deposited on the Pd nanowires by using copper underpotential deposition and subsequent replacement of Cu by Pt. The products were characterized by using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and energy spectrum analysis. The electrocatalytic performance of PdPt nanowires was studied by cyclic voltammetry and chronoamperometry. Electrochemical results show that the monolayer of Pt can improve not only the activity of Pd nanowires but also the stability for ethanol oxidation in alkaline medium.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2013.08.096