DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Min-Ku | ko |
dc.contributor.author | Daimon, Hideo | ko |
dc.contributor.author | Lee, Ki-Rak | ko |
dc.contributor.author | Nakahara, Akemi | ko |
dc.contributor.author | Woo, Seong-Ihl | ko |
dc.date.accessioned | 2010-05-13T05:41:38Z | - |
dc.date.available | 2010-05-13T05:41:38Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-11 | - |
dc.identifier.citation | ELECTROCHEMISTRY COMMUNICATIONS, v.9, no.11, pp.2692 - 2695 | - |
dc.identifier.issn | 1388-2481 | - |
dc.identifier.uri | http://hdl.handle.net/10203/18276 | - |
dc.description.abstract | Platinum supported on WC (Pt/WC) catalyst (20 wt.% Pt) was synthesized as a new methanol electro-oxidation catalyst. Particle size of 7.5 nm was obtained from X-ray diffraction results and a uniform distribution of particles was observed by transmission electron microscopy. In cyclic voltammetry (CV) measurement, the reduction peak potential of NO increased from 0.72 V in commercial Pt/C to 0.76 V in Pt/WC. By combining the CV and CO stripping results, spill-over of H+ from Pt to WC was observed. Electrochemically active surface area calculated from the desorption area of H+ were 11.2 and 5.74 m(2)/g catalyst for Pt/WC and Pt/C, while those obtained from the desorption area of CO were 4.42 and 6.40 m(2)/g catalyst, respectively. CO electro-oxidation peak potential greatly decreased from 0.80 V in Pt/C to 0.68 V in Pt/WC. The reaction of WC with water to produce WC-OH could lower to CO electro-oxidation peak potential. Specific activity for methanol electro-oxidation increased from 144 mA/m(2) in Pt/C to 188 mA/m(2) in Pt/WC. (C) 2007 Elsevier B.V. All rights reserved. | - |
dc.description.sponsorship | This research was funded by the Center for Ultramicrochemical Process Systems (CUPS) sponsored by KOSEF (2007). | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.subject | TUNGSTEN CARBIDE | - |
dc.subject | CARBON SUPPORT | - |
dc.subject | FUEL-CELLS | - |
dc.subject | OXIDATION | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | ELECTRODE | - |
dc.title | CO tolerant Pt/WC methanol electro-oxidation catalyst | - |
dc.type | Article | - |
dc.identifier.wosid | 000251784700011 | - |
dc.identifier.scopusid | 2-s2.0-35448991730 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 2692 | - |
dc.citation.endingpage | 2695 | - |
dc.citation.publicationname | ELECTROCHEMISTRY COMMUNICATIONS | - |
dc.identifier.doi | 10.1016/j.elecom.2007.09.001 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Woo, Seong-Ihl | - |
dc.contributor.nonIdAuthor | Jeon, Min-Ku | - |
dc.contributor.nonIdAuthor | Daimon, Hideo | - |
dc.contributor.nonIdAuthor | Nakahara, Akemi | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | methanol electro-oxidation | - |
dc.subject.keywordAuthor | CO stripping | - |
dc.subject.keywordAuthor | direct methanol fuel cell | - |
dc.subject.keywordAuthor | electrocatalyst | - |
dc.subject.keywordPlus | TUNGSTEN CARBIDE | - |
dc.subject.keywordPlus | CARBON SUPPORT | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | ELECTRODE | - |
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