dc.citation.endPage |
1654 |
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dc.citation.number |
1 |
- |
dc.citation.startPage |
1647 |
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dc.citation.title |
ECS Transactions |
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dc.citation.volume |
57 |
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dc.contributor.author |
Kim, Guntae |
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dc.contributor.author |
Sengodan, Sivapraka |
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dc.contributor.author |
Kim, Junyoung |
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dc.contributor.author |
Shin, Jeeyoung |
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dc.date.accessioned |
2023-12-22T04:15:49Z |
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dc.date.available |
2023-12-22T04:15:49Z |
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dc.date.created |
2014-09-16 |
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dc.date.issued |
2013-01 |
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dc.description.abstract |
Non-stoichiometric variation of oxygen content in La0.8Sr 0.2Sc0.2Mn0.8O3±δ were determined by means of coulometric titration as a function of oxygen partial pressure p(O2) and temperature. La0.8Sr0.2Sc 0.2Mn0.8O3±δ oxides shows oxygen excess and oxygen deficient composition depending on p(O2). Random defect model was constructed based on the experimental oxygen non-stoichiometry. The non-stoichiometric variation of oxygen content of La0.8Sr 0.2Sc0.2Mn0.8O3±δ can be explained by the defect equilibrium model. Thermodynamic quantities such as partial molar enthalpy and partial molar entropy were calculated using Gibbs-Hemholtz equation. Electrical conductivity measurements were performed as a function of oxygen partial pressure and temperature, which shows a typical p-type behavior. |
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dc.identifier.bibliographicCitation |
ECS Transactions, v.57, no.1, pp.1647 - 1654 |
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dc.identifier.doi |
10.1149/05701.1647ecst |
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dc.identifier.issn |
1938-5862 |
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dc.identifier.scopusid |
2-s2.0-84905027684 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/6139 |
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dc.identifier.url |
http://ecst.ecsdl.org/content/57/1/1647 |
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dc.identifier.wosid |
000338989003019 |
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dc.language |
영어 |
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dc.publisher |
The Electrochemical Society |
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dc.title |
Oxygen non-stoichiometry, defect equilibrium and electrical properties of La0.8Sr0.2Sc0.2Mn0.8O 3±δ |
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dc.type |
Article |
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dc.description.isOpenAccess |
FALSE |
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dc.description.journalRegisteredClass |
scopus |
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