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Electrochemical determination of the surface composition of Pd-Pt core-shell nanoparticles
- Jeon, Tae-Yeol;
- Yoo, Sung Jong;
- Cho, Yong-Hun;
- Park, Hee-Young;
- Sung, Yung-Eun
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7초록
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.
키워드
Carbon dioxide; Core-shell; Oxygen reduction reaction; Electrocatalyst; Fuel cell; OXYGEN-REDUCTION; ENHANCED ACTIVITY; ALLOYS; ELECTROCATALYSTS; ELECTROSORPTION; DEPOSITION; ADSORPTION; CATALYSTS; CLUSTERS; SMOOTH
- 제목
- Electrochemical determination of the surface composition of Pd-Pt core-shell nanoparticles
- 저자
- Jeon, Tae-Yeol; Yoo, Sung Jong; Cho, Yong-Hun; Park, Hee-Young; Sung, Yung-Eun
- 발행일
- 2013-03
- 유형
- Article
- 권
- 28
- 페이지
- 114 ~ 117