Characterization of a LSCF/GDC Cathode Composite in Solid Oxide Fuel Cells Using Impedance Spectroscopy
DC Field | Value | Language |
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dc.contributor.author | 황진하 | - |
dc.contributor.author | Byung-Kook Lee | - |
dc.date.accessioned | 2022-02-17T04:42:42Z | - |
dc.date.available | 2022-02-17T04:42:42Z | - |
dc.date.created | 2022-02-17 | - |
dc.date.issued | 2005 | - |
dc.identifier.issn | 1229-7801 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/25363 | - |
dc.description.abstract | A composite cathode of LSCF(La0.6Sr0.4Co0.2Fe0.8O3) and GDC(Gd2O3-Doped CeO2: Cd0.9Ge0.1O1.95) was characterized in terms of an electrode response, using a point contact in an yttria-stabilized zirconia (YSZ) electrolyte incorporated into AC two-point impedance spectroscopy. The point-contacted configuration amplifies the responses occurring near the YSZ/cathode interface through the aligned point contact on the planar LSCF/GDC electrode. The point contact interface increases the bulk resistance allowing the estimation of the point contact geometry and resolving the electrode-related responses. The resultant impedance spectra are analyzed through an equivalent circuit model constructed by resistors and constant phase elements. The bulk responses can be resolved from the electrode-related portions in terms of spreading resistance. The electrode-related polarizations are measured in terms of temperature and oxygen partial pressure. The modified impedance spectroscopy is discussed in terms of methodology and analytical aspects, toward resolving the electrode-polarization issues of solid oxide fuel cells. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | 한국세라믹학회 | - |
dc.title | Characterization of a LSCF/GDC Cathode Composite in Solid Oxide Fuel Cells Using Impedance Spectroscopy | - |
dc.title.alternative | Characterization of a LSCF/GDC Cathode Composite in Solid Oxide Fuel Cells Using Impedance Spectroscopy | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 황진하 | - |
dc.identifier.bibliographicCitation | 한국세라믹학회지, v.42, no.12, pp.793 - 799 | - |
dc.relation.isPartOf | 한국세라믹학회지 | - |
dc.citation.title | 한국세라믹학회지 | - |
dc.citation.volume | 42 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 793 | - |
dc.citation.endPage | 799 | - |
dc.type.rims | ART | - |
dc.identifier.kciid | ART001096621 | - |
dc.description.journalClass | 2 | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Electrolyte | - |
dc.subject.keywordAuthor | Point Contact | - |
dc.subject.keywordAuthor | SOFC | - |
dc.subject.keywordAuthor | Impedance Spectroscopy | - |
dc.subject.keywordAuthor | Spreading ResistanceI. IntroductionThe concept of a hydrogen economy has ignited the advent of the electrochemical fuel cells which convert the chemical energy of fuels directly to electricit | - |
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