One-step co-electrodeposition of Pt-Ru electrocatalysts on carbon paper for direct methanol fuel

Ahn, Sang Hyun; Choi, Insoo; Kwon, Oh Joong; Kim, Jae Jeong

doi:10.1016/j.cej.2011.11.079

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One-step co-electrodeposition of Pt-Ru electrocatalysts on carbon paper for direct methanol fuel

Ahn, Sang Hyun;
Choi, Insoo;
Kwon, Oh Joong;
Kim, Jae Jeong

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WEB OF SCIENCE

44

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55

초록

Preparation of Pt-Ru electrocatalyst was successfully performed on carbon paper by one-step co-electrodeposition method. Particle size and density were controlled by deposition potential and time. Coverage of the catalysts deposited on the carbon paper was significantly related to the composition of the electrolyte. Catalyst particles were characterized by field emission scanning electron microscopy (FESEM), and the crystal structure was analyzed by X-ray diffraction (XRD). Bulk and surface compositions of the electrocatalysts were obtained by inductively coupled plasma mass spectroscopy (ICPMS) and X-ray photoelectron spectroscopy (XPS), respectively. The Pt-Ru electrocatalyst with a surface molar ratio of 51.7 Pt and 48.3 Ru showed the highest catalytic activity for methanol oxidation and the strongest tolerance against carbon monoxide poisoning. (C) 2011 Elsevier B.V. All rights reserved.

키워드

Platinum-ruthenium alloy catalyst; Co-electrodeposition; Direct methanol fuel cell; Methanol oxidation; Carbon monoxide tolerance; X-RAY-ABSORPTION; ANODE CATALYST; ELECTROOXIDATION; CELL; NANOTUBES; DMFC; NANOPARTICLES; PERFORMANCE; OXIDATION; SURFACE

제목: One-step co-electrodeposition of Pt-Ru electrocatalysts on carbon paper for direct methanol fuel

저자: Ahn, Sang Hyun; Choi, Insoo; Kwon, Oh Joong; Kim, Jae Jeong

DOI: 10.1016/j.cej.2011.11.079

발행일: 2012-02-01

유형: Article

저널명: Chemical Engineering Journal

권: 181

페이지: 276 ~ 280