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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | B1379 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | B1373 | - |
dc.citation.title | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.citation.volume | 158 | - |
dc.contributor.author | Sengodan, Sivaprakash | - |
dc.contributor.author | Kim, Jihoon | - |
dc.contributor.author | Shin, Jeeyoung | - |
dc.contributor.author | Kim, Guntae | - |
dc.date.accessioned | 2023-12-22T05:41:45Z | - |
dc.date.available | 2023-12-22T05:41:45Z | - |
dc.date.created | 2013-06-04 | - |
dc.date.issued | 2011-11 | - |
dc.description.abstract | La0.8Sr0.2ScxMn1-xO3-delta-yttria stabilized zirconia composite anodes were synthesized by infiltration and investigated as alternative anodes for intermediate solid oxide fuel cells. Non-stoichiometric variation of oxygen content and electrical conductivity in La0.8Sr0.2ScxMn1-xO3-delta-yttria stabilized zirconia composite was studied by high temperature coulometric titration at 923-1023 K. La0.8Sr0.2ScxMn1-xO3-delta shows an oxygen deficient composition depending on the oxygen partial pressure, temperature, and Sc content. A defect chemistry model is presented by taking into consideration the interaction of randomly distributed defects, Sr-La('), V-O(center dot center dot), O-O(X), Mn-Mn(X), Mn-Mn(center dot) and Sc-Mn(X). The proposed defect model fits well with experimental non-stoichiometric data. The interaction among the defects for vacancy formation is strongly influenced by the amount of dopant, Sc content, and temperature. The thermodynamic properties, oxidation enthalpy Delta H and entropy Delta S, were obtained from the oxygen isotherms. The electrical conductivities measured by the 4-probe method as a function of oxygen partial pressure and temperature were high enough for composite anode application. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.158, no.11, pp.B1373 - B1379 | - |
dc.identifier.doi | 10.1149/2.043111jes | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.scopusid | 2-s2.0-80054018885 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/2659 | - |
dc.identifier.url | http://doi.org/10.1149/2.043111jes | - |
dc.identifier.wosid | 000295626000021 | - |
dc.language | 영어 | - |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.title | Thermodynamic Properties, Defect Analysis, and Electrical Conductivity of the La0.8Sr0.2ScxMn1-xO3-delta Infiltrated into YSZ Scaffolds | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry; Materials Science, Coatings & Films | - |
dc.relation.journalResearchArea | Electrochemistry; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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