Atomic layer deposition of ruthenium surface-coating on porous platinum catalysts for high-performance direct ethanol solid oxide fuel cells
DC Field | Value | Language |
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dc.contributor.author | Jeong, Heon Jae | - |
dc.contributor.author | Kim, Jun Woo | - |
dc.contributor.author | Jang, Dong Young | - |
dc.contributor.author | Shim, Joon Hyung | - |
dc.date.accessioned | 2021-09-04T12:15:34Z | - |
dc.date.available | 2021-09-04T12:15:34Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-09-30 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/92433 | - |
dc.description.abstract | Pt-Ru bi-metallic catalysts are synthesized by atomic layer deposition (ALD) of Ru surface-coating on sputtered Pt mesh. The catalysts are evaluated in direct ethanol solid oxide fuel cells (DESOFCs) in the temperature range of 300-500 degrees C. Island-growth of the ALD Ru coating is confirmed by transmission electron microscopy and X-ray photoelectron spectroscopy (XPS) analyses. The performance of the DESOFCs is evaluated based on the current-voltage output and electrochemical impedance spectroscopy. Genuine reduction of the polarization impedance, and enhanced power output with improved surface kinetics are achieved with the optimized ALD Ru surface-coating compared to bare Pt. The chemical composition of the Pt/ALD Ru electrode surface after fuel cell operation is analyzed via XPS. Enhanced cell performance is clearly achieved, attributed to the effective Pt/ALD Ru hi-metallic catalysis, including oxidation of C=O by Ru, and de-protonation of ethanol and cleavage of C-C bonds by Pt, as supported by surface morphology analysis which confirms formation of a large amount of carbon on bare Pt after the ethanol-fuel-cell test. (C) 2015 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | OXIDATION | - |
dc.subject | METHANOL | - |
dc.subject | ELECTRODES | - |
dc.subject | ANODES | - |
dc.subject | ELECTROLYTES | - |
dc.subject | PTRU | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | ALUMINA | - |
dc.subject | METALS | - |
dc.subject | DAFC | - |
dc.title | Atomic layer deposition of ruthenium surface-coating on porous platinum catalysts for high-performance direct ethanol solid oxide fuel cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shim, Joon Hyung | - |
dc.identifier.doi | 10.1016/j.jpowsour.2015.05.005 | - |
dc.identifier.scopusid | 2-s2.0-84929325682 | - |
dc.identifier.wosid | 000356746400027 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.291, pp.239 - 245 | - |
dc.relation.isPartOf | JOURNAL OF POWER SOURCES | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 291 | - |
dc.citation.startPage | 239 | - |
dc.citation.endPage | 245 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | METHANOL | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordPlus | ELECTROLYTES | - |
dc.subject.keywordPlus | PTRU | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | ALUMINA | - |
dc.subject.keywordPlus | METALS | - |
dc.subject.keywordPlus | DAFC | - |
dc.subject.keywordAuthor | Atomic layer deposition | - |
dc.subject.keywordAuthor | Heterogeneous catalysts | - |
dc.subject.keywordAuthor | Direct ethanol solid oxide fuel cells | - |
dc.subject.keywordAuthor | Platinum | - |
dc.subject.keywordAuthor | Ruthenium | - |
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