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

Title
Electrochemical determination of the surface composition of Pd-Pt core-shell nanoparticles
Authors
전태열유성종조용훈박희영성영은
Keywords
연료전지; 촉매; 코워-쉘; Carbon dioxide; Core-shell; Oxygen reduction reaction; Electrocatalyst; Fuel cell
Issue Date
2013-03
Publisher
Electrochemistry communications
Citation
VOL 28, 114-117
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.
URI
http://pubs.kist.re.kr/handle/201004/44533
ISSN
13882481
Appears in Collections:
KIST Publication > Article
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