Coprecipitation Synthesis and Characterization of La0.8Sr0.2Ga0.8-xMg0.2CoxO2.8 for Intermediate Temperature Solid Oxide Fuel Cell Electrolytes
DC Field | Value | Language |
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dc.contributor.author | Lee, Jin Goo | - |
dc.contributor.author | Yoon, Hyon Hee | - |
dc.date.available | 2020-02-29T06:48:11Z | - |
dc.date.created | 2020-02-05 | - |
dc.date.issued | 2012-01 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/16667 | - |
dc.description.abstract | La0.8Sr0.2Ga0.8-xMg0.2CoxO2.8 (LSGMC) electrolyte powders containing different amount of Co (0 <= x <= 0.15) were prepared by ammonium carbonate coprecipitation method. The precursors, the calcined powders, and the sintered pellets were characterized by thermogravimetry/differential thermal analysis, X-ray diffractometry, scanning electron microscopy, and an impedance analyzer. The thermal decomposition of the LSGMC precursors was completed at around 900 degrees C with the total weight loss of approximately 35%. The LSGMC samples sintered at 1350 degrees C consisted of the pure perovskite structure. The ionic conductivity was significantly improved by Co doping for the Ga-site of the La0.8Sr0.2Ga0.8Mg0.2O2.8 (LSGM) electrolytes. The ionic conductivity of LSGMC (x = 0.1) exhibited the highest values of 1.6 x 10(-1) S cm(-1) at 700 degrees C with an activation energy for the oxide-ion conduction of 0.29 eV. The results of this study indicated that the Co-doped LSGM electrolytes had excellent properties for use as an electrolyte in an IT-SOFC and the ammonium carbonate coprecipitation process could be employed as the efficient method for the preparation of the Co-doped LSGM electrolytes. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.subject | CO-DOPED LSGM | - |
dc.subject | CARBONATE COPRECIPITATION | - |
dc.subject | CONDUCTIVITY | - |
dc.subject | LAGAO3 | - |
dc.subject | SR | - |
dc.subject | POWDERS | - |
dc.subject | FE | - |
dc.title | Coprecipitation Synthesis and Characterization of La0.8Sr0.2Ga0.8-xMg0.2CoxO2.8 for Intermediate Temperature Solid Oxide Fuel Cell Electrolytes | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000301990500113 | - |
dc.identifier.doi | 10.1166/jnn.2012.5406 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.1, pp.769 - 774 | - |
dc.identifier.scopusid | 2-s2.0-84861140445 | - |
dc.citation.endPage | 774 | - |
dc.citation.startPage | 769 | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 12 | - |
dc.citation.number | 1 | - |
dc.contributor.affiliatedAuthor | Lee, Jin Goo | - |
dc.contributor.affiliatedAuthor | Yoon, Hyon Hee | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | Solid Oxide Fuel Cell | - |
dc.subject.keywordAuthor | Carbonate Coprecipitation | - |
dc.subject.keywordAuthor | Electrolyte | - |
dc.subject.keywordAuthor | Doped-LaGaO3 | - |
dc.subject.keywordAuthor | Ionic Conductivity | - |
dc.subject.keywordPlus | CO-DOPED LSGM | - |
dc.subject.keywordPlus | CARBONATE COPRECIPITATION | - |
dc.subject.keywordPlus | CONDUCTIVITY | - |
dc.subject.keywordPlus | LAGAO3 | - |
dc.subject.keywordPlus | SR | - |
dc.subject.keywordPlus | POWDERS | - |
dc.subject.keywordPlus | FE | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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