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dc.creatorKljajević, Ljiljana M.
dc.creatorMelichova, Zuzana
dc.creatorStojmenović, Marija
dc.creatorTodorović, Bratislav Ž
dc.creatorPavlović, Vladimir B.
dc.creatorČitaković, Nada
dc.creatorNenadović, Snežana S.
dc.date.accessioned2020-01-12T19:05:19Z
dc.date.available2020-01-12T19:05:19Z
dc.date.issued2019
dc.identifier.issn1857-5625
dc.identifier.urihttps://mjcce.org.mk/index.php/MJCCE/article/view/1678
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/7042
dc.description.abstractGeopolymers (GP) were successfully synthesized from metabentonite (MB), metadiatomite (MD) and metakaolinite (MK). Characterization of their phase structure and microstructure was performed by XRD, FTIR, SEM/EDX methods. A SEM micrograph of GPMD shows a homogeneous surface with some longitudinal cavities in the gel, and it is significantly different from the micrographs of the other two geopolymer samples, GPMB and GPMK. A considerable amount of unreacted particles, as well as the presence of pores in the geopolymer matrix of GPMK and GPMD, indicate an incomplete reaction in the system. Aluminosilicate inorganic polymers, geopolymers, are quasi solid electrolytes which possess a high electrical conductivity at room temperature in relation to materials of similar chemical composition. The highest conductivity was found for the sample obtained from GPMK, amounting to 2.14 × 10–2 Ω–1cm–1at 700 ºC. The corresponding activation energies of conductivity for this sample amounted to 0.33 eV in the temperature range of 500–700 ºC. The geopolymer synthesized from metakaolin has good ionic conductivity values, which recommends it for use as an alternative material for an SOFC (Solid Oxide Fuel Cell).en
dc.languageen
dc.publisherSkopje : Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS//
dc.relationSlovak Grant Agency VEGA No. 1/0538/15
dc.relationProject "Restoration and construction of infrastructure for ecological and environ-mental research at Matej Bel University in Banská Bystrica", ITMS 26210120024
dc.rightsopenAccess
dc.sourceMacedonian Journal of Chemistry and Chemical Engineering
dc.subjectelectrical conductivity
dc.subjectgeopolymer
dc.subjectmetabentonite
dc.subjectmetadiatomite
dc.subjectmetakaolin
dc.titleStructural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite)en
dc.typearticleen
dc.rights.licenseBY-NC
dcterms.abstractЧитаковић, Нада; Тодоровић, Братислав Ж; Стојменовић, Марија; Кљајевић, Љиљана М.; Мелицхова, Зузана; Павловић, Владимир Б.; Ненадовић, Снежана С.;
dc.citation.spage283
dc.citation.epage292
dc.citation.volume38
dc.citation.issue2
dc.identifier.wos000508000900012
dc.identifier.doi10.20450/mjcce.2019.1678
dc.identifier.scopus2-s2.0-85079366520
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/27920/1678-5881-1-PB.pdf


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