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Electrochemical determination of the surface composition of Pd-Pt core-shell nanoparticles

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Title
Electrochemical determination of the surface composition of Pd-Pt core-shell nanoparticles
Author(s)
Tae-Yeol Jeon; Yoo, Sung Jong; Cho, Yong-Hun; Park, Hee-Young; Yung Eun Sung
Publication Date
2013-03
Journal
ELECTROCHEMISTRY COMMUNICATIONS, v.28, no., pp.114 - 117
Publisher
ELSEVIER SCIENCE INC
Abstract
Different amounts of Pt atoms were deposited onto the surface of Pd nanoparticles supported on carbon black by hydroquinone reduction method in anhydrous ethanol. Here, we surveyed electrochemical probing of surface compositions of Pd-Pt surface alloys. They were calculated from hydrogen desorption, carbon monoxide adlayer oxidation, and reduced carbon dioxide oxidation charges. The surface composition of Pt drastically increased up to Pt[0.3]/Pd/C (23.1 at.% of Pt) and then approached that of pure Pt with the moderate rate of increase. (C) 2012 Elsevier B.V. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/1377
ISSN
1388-2481
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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