Electrochemical estimation of GBCO(GdBaCo2O5+delta)/GDC(Gd2O3-doped CeO2) cathode composites designed for intermediate-temperature solid oxide electrochemical cells
DC Field | Value | Language |
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dc.contributor.author | Ko, Myeong-Hee | - |
dc.contributor.author | Yoo, Young-Sung | - |
dc.contributor.author | Hwang, Jin-Ha | - |
dc.date.available | 2020-07-10T07:21:38Z | - |
dc.date.created | 2020-07-06 | - |
dc.date.issued | 2015-04 | - |
dc.identifier.issn | 0272-8842 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/10064 | - |
dc.description.abstract | Double (or layered) perovskite GdBaCo2O5+delta (GBCO) was synthesized via a glycin nitrate process. This mixed ionic-electronic GBCO was composited to ionic GDC conductors as a cathode system for intermediate-temperature solid oxide fuel cells. The electrochemical features of these GBCO/GDC cathodes were investigated via frequency-dependent impedance spectroscopy with a geometric restriction at the cathode/electrolyte interface. Compared to the pure GBCO system, the GBCO/GDC composites exhibited a gradual increase in their electrochemical polarization. The optimized composition was determined to be 75 wt%:25 wt% GBCO:GDC. The larger GBCO fraction is believed to exhibit high mixed ionic-electronic conduction due to the oxygen vacancies in its crystal structure, found in the [Gd-O] layers. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | FUEL | - |
dc.subject | POLARIZATION | - |
dc.subject | CONDUCTIVITY | - |
dc.subject | GDBACO2O5+X | - |
dc.subject | SOFCS | - |
dc.title | Electrochemical estimation of GBCO(GdBaCo2O5+delta)/GDC(Gd2O3-doped CeO2) cathode composites designed for intermediate-temperature solid oxide electrochemical cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hwang, Jin-Ha | - |
dc.identifier.doi | 10.1016/j.ceramint.2014.12.005 | - |
dc.identifier.scopusid | 2-s2.0-84922922163 | - |
dc.identifier.wosid | 000350180600045 | - |
dc.identifier.bibliographicCitation | CERAMICS INTERNATIONAL, v.41, no.3, pp.4616 - 4620 | - |
dc.relation.isPartOf | CERAMICS INTERNATIONAL | - |
dc.citation.title | CERAMICS INTERNATIONAL | - |
dc.citation.volume | 41 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 4616 | - |
dc.citation.endPage | 4620 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | FUEL | - |
dc.subject.keywordPlus | POLARIZATION | - |
dc.subject.keywordPlus | CONDUCTIVITY | - |
dc.subject.keywordPlus | GDBACO2O5+X | - |
dc.subject.keywordPlus | SOFCS | - |
dc.subject.keywordAuthor | Double perovskite | - |
dc.subject.keywordAuthor | GdBaCo2O5+delta | - |
dc.subject.keywordAuthor | Impedance spectroscopy | - |
dc.subject.keywordAuthor | Electrochemical polarization | - |
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