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dc.creatorKesić, Željka
dc.creatorLukić, Ivana
dc.creatorZdujić, Miodrag
dc.creatorJovanović, Dušan
dc.creatorLiu, Hui
dc.creatorSkala, Dejan
dc.date.accessioned2017-06-10T15:45:07Z
dc.date.issued2012
dc.identifier.isbn9788691562700
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/505
dc.description.abstractRoom temperature ball milling of CaO and ZnO powder mixture (using molar ratio of CaO:ZnO of 1:2) with the addition of stoichiometrically required amount of water to form calcium zinc hydroxide hydrate (CaZn2(OH)6•2H2O) and subsequent calcination at 700 oC was conducted. In order to improve basicity of mixed oxides, calcium zinc hydroxide hydrate was modified by the addition of promoters. The addition of promoter in initial powder mixture such as K2CO3 and KOH (with molar ratio of promoter to CaO of 1:10) was shown to effect the mechanochemical reaction. The prepared catalysts were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), base strength using Hammett indicator method and scanning electron microscopy (SEM and SEM-EDS). The results showed that, during mechanochemical treatment, CaO, ZnO and H2O reacted rapidly to form CaZn2(OH)6•2H2O, and this was the same when promoters were used. Only difference was in basicity of the catalysts, and opposite of the expected, results showed that the addition of promoters did not cause an increase of basicity. On the other hand, addition of KOH to initial powder mixture caused increase of carbonates formation during mechanochemical treatment.en
dc.format(2012) 28-28
dc.formatapplication/pdf
dc.languageen
dc.publisherBelgrade : Serbian Ceramic Society
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsopenAccess
dc.sourceThe First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstractsen
dc.subjectball milling
dc.subjectCaO
dc.subjectZnO
dc.subjectK2O
dc.subjectmechanochemistry
dc.titleCharacterization of Mechanochemically Synthesized CaO·ZnO/K2O Mixed Oxidesen
dc.typeconferenceObject
dc.rights.licenseBY-NC-ND
dcterms.abstractЛиу, Хуи; Кесић, Жељка; Лукић, Ивана; Здујић, Миодраг; Јовановић, Душан; Скала, Дејан;
dc.citation.spage28
dc.citation.epage28
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/21493/502.pdf


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