DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chu, YH | ko |
dc.contributor.author | Shul, YG | ko |
dc.contributor.author | Choi, WC | ko |
dc.contributor.author | Woo, Seong-Ihl | ko |
dc.contributor.author | Han, HS | ko |
dc.date.accessioned | 2013-03-03T19:33:58Z | - |
dc.date.available | 2013-03-03T19:33:58Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-05 | - |
dc.identifier.citation | JOURNAL OF POWER SOURCES, v.118, no.1-2, pp.334 - 341 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/80137 | - |
dc.description.abstract | The influence of the Nafion ionomer as a proton conductor on the platinum-ruthenium (Pt-Ru) alloy electrocatalyst for the electro-oxidation of methanol was investigated using combinatorial electrochemical methods. The most active composition of the Pt-Ru alloy electrocatalysts for the electro-oxidation of methanol was Pt(54.5)Ru(45.5), and the most active composition of the Pt-Ru-Nafion electrocatalysts for the electro-oxidation of methanol was metal (Pt:Ru = 1: 1, molar ratio):Nafion = 63.6:36.4, wt.%. The electrochemical properties of the electrodes were compared using cyclic voltammetry, impedance spectroscopy and a performance test of a direct methanol fuel cell (DMFC). When the Nation was added to the Pt-Ru alloy electrocatalyst, the initial activation potential decreased about 80 mV versus RHE, and the methanol electro-oxidation activity simultaneously increased. In a CO poisoning experiment, the CO was desorbed at a lower potential (lower than 130 mV versus RHE) when the Nafion was present. These results suggest a synergistic effect of Nafion-active metal catalysts for the electro-oxidation of methanol. (C) 2003 Published by Elsevier Science B.V. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | FUEL-CELLS | - |
dc.subject | CATALYST LAYER | - |
dc.subject | ELECTROOXIDATION | - |
dc.subject | PERFORMANCE | - |
dc.subject | ALLOYS | - |
dc.subject | ANODE | - |
dc.title | Evaluation of the nafion effect on the activity of Pt-Ru electrocatalysts for the electro-oxidation of methanol | - |
dc.type | Article | - |
dc.identifier.wosid | 000183286600045 | - |
dc.identifier.scopusid | 2-s2.0-0038823772 | - |
dc.type.rims | ART | - |
dc.citation.volume | 118 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 334 | - |
dc.citation.endingpage | 341 | - |
dc.citation.publicationname | JOURNAL OF POWER SOURCES | - |
dc.contributor.localauthor | Woo, Seong-Ihl | - |
dc.contributor.nonIdAuthor | Chu, YH | - |
dc.contributor.nonIdAuthor | Shul, YG | - |
dc.contributor.nonIdAuthor | Choi, WC | - |
dc.contributor.nonIdAuthor | Han, HS | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | methanol electro-oxidation | - |
dc.subject.keywordAuthor | electrochemistry | - |
dc.subject.keywordAuthor | direct methanol fuel cell | - |
dc.subject.keywordAuthor | platinum-ruthenium | - |
dc.subject.keywordAuthor | nation ionomer | - |
dc.subject.keywordAuthor | CO poisoning | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | CATALYST LAYER | - |
dc.subject.keywordPlus | ELECTROOXIDATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ALLOYS | - |
dc.subject.keywordPlus | ANODE | - |
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