CERIA-CARBONATE SOLID ELECTROLYTE COMPOZITE FOR INTERMEDIATE TEMPERATURE FUEL CELL

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dc.coverageSTUDIA UBB AMBIENTUM, LX, 1-2, 2015, pp. 5-13en-US
dc.creatorBALINT (SAMOILA), Adriana
dc.creatorRISTOIU, Tania
dc.creatorMESAROS, Amalia
dc.creatorNASUI, Mircea
dc.creatorMOS, Ramona
dc.creatorGABOR, Mihai
dc.creatorPETRISOR Jr., Traian
dc.creatorCIONTEA, Lelia
dc.creatorBOGDAN, Vasile
dc.date2015-12-30
dc.date.accessioned2026-01-02T08:42:21Z
dc.descriptionCeria based nanocomposites consisting of calcium doped ceria and Na2CO3 have been prepared for their use as solid state electrolyte in solid oxide fuel cells by a direct co-precipitation method followed by a thermal treatment at 700 0C. The decomposition course of the precursor, the thermal stability, the morphology, and the composite formation succession were studied by thermogravimetric analyses (TG), FT-IR spectroscopy, SEM and XRD analyses. The only identified crystalline phase is cerium oxide, in which the cerium ions are partially substituted by the calcium ions. The absence of any carbonate phase in the XRD pattern is indicative for its amorphous character. The calcium doped ceria crystallites, with an average size of about 50 nm, have a uniform distribution in the matrix. The temperature dependence of the conductivity between 300-600 0C was performed on the composite pellets, exhibiting an exponential behavior of the electrical conductivity with values intermediate between the calcium doped ceria and Na2CO3. The activation energy decreases from 1.693 eV for pure ceria to 0.79 eV for the calcium doped ceria nanocomposite.en-US
dc.formatapplication/pdf
dc.identifierhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/4276
dc.identifier.urihttp://dspace.chem.ubbcluj.ro/handle/20.500.14637/172
dc.languageeng
dc.publisherBabeş-Bolyai University / Cluj University Pressen-US
dc.relationhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/4276/4046
dc.rightsCopyright (c) 2015 Studia Universitatis Babeș-Bolyai Ambientumen-US
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0en-US
dc.sourceStudia Universitatis Babeș-Bolyai Ambientum; Volume 60, No. 1-2, December 2015; 5-13en-US
dc.source2065-9490
dc.source1843-3855
dc.subjectceria, co-precipitation, electrical conductivity, SOFCen-US
dc.titleCERIA-CARBONATE SOLID ELECTROLYTE COMPOZITE FOR INTERMEDIATE TEMPERATURE FUEL CELLen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typePeer-reviewed Articleen-US
dc.typetexten-US

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