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College of Engineering(공과대학)Dept. of Chemical and Biomolecular Engineering(생명화학공학과)CBE-Journal Papers(저널논문)

Effect of heat treatment on PtRu/C catalyst for methanol electro-oxidation

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dc.contributor.authorJeon, Min-Kuko
dc.contributor.authorLee, Ki-Rakko
dc.contributor.authorJeon, Hee-Jungko
dc.contributor.authorWoo, Seong-Ihlko
dc.date.accessioned2010-05-25T02:52:19Z-
dc.date.available2010-05-25T02:52:19Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2009-09-
dc.identifier.citationJOURNAL OF APPLIED ELECTROCHEMISTRY, v.39, no.9, pp.1503 - 1508-
dc.identifier.issn0021-891X-
dc.identifier.urihttp://hdl.handle.net/10203/18528-
dc.description.abstractThe effect of heat treatment on a commercial PtRu/C catalyst was investigated with a focus on the relationship between electrochemical and surface properties. The heat treated PtRu/C catalysts were prepared by reducing the commercial PtRu/C catalyst at 300, 500, and 600 A degrees C under hydrogen flow. The maximum mass activity for the methanol electro-oxidation reaction (MOR) was observed in the catalyst heat treated at 500 A degrees C, while specific activity for the MOR increased with increasing heat treatment temperature. Cyclic voltammetry (CV) results revealed that the heat treatment caused Pt rich surface formation. The increase in surface Pt was confirmed by X-ray photoelectron spectroscopy; the surface (Pt:Ru) ratio of the fresh catalyst (81:19) changed to (87:13) in the 600 A degrees C heat treated catalyst. Quantitative analysis of the Ru oxidation state showed that the ratio of metallic Ru increased with an increase in heat treatment temperature. On the other hand, RuO(x)H(y) completely reduced at 500 A degrees C and the ratio of RuO(2) slightly decreased with increasing heat treatment temperature.-
dc.description.sponsorshipThis research was partially funded by the Center for Ultramicrochemical Process Systems (CUPS) sponsored by KOSEF (2008). The authors also thank Research Park/LG Chem, Ltd. and Ministry of Commerce, Industry and Energy for funding this research in the framework of the Korean government/industry joint project for the development of 50 W direct methanol fuel cell systems.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherSPRINGER-
dc.subjectFUEL-CELL ANODE-
dc.subjectPT-RU ALLOYS-
dc.subjectOXIDATION CATALYSTS-
dc.subjectFORMIC-ACID-
dc.subjectELECTROCATALYSTS-
dc.subjectPERFORMANCE-
dc.subjectCO-
dc.subjectPLATINUM-
dc.subjectNANOPARTICLES-
dc.subjectTEMPERATURE-
dc.titleEffect of heat treatment on PtRu/C catalyst for methanol electro-oxidation-
dc.typeArticle-
dc.identifier.wosid000269012900011-
dc.identifier.scopusid2-s2.0-68949178234-
dc.type.rimsART-
dc.citation.volume39-
dc.citation.issue9-
dc.citation.beginningpage1503-
dc.citation.endingpage1508-
dc.citation.publicationnameJOURNAL OF APPLIED ELECTROCHEMISTRY-
dc.identifier.doi10.1007/s10800-009-9833-2-
dc.contributor.localauthorWoo, Seong-Ihl-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorPtRu/C-
dc.subject.keywordAuthorMethanol electro-oxidation-
dc.subject.keywordAuthorElectrocatalyst-
dc.subject.keywordAuthorCO stripping-
dc.subject.keywordAuthorX-ray photoelectron spectroscopy-
dc.subject.keywordPlusFUEL-CELL ANODE-
dc.subject.keywordPlusPT-RU ALLOYS-
dc.subject.keywordPlusOXIDATION CATALYSTS-
dc.subject.keywordPlusFORMIC-ACID-
dc.subject.keywordPlusELECTROCATALYSTS-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusCO-
dc.subject.keywordPlusPLATINUM-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusTEMPERATURE-
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