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dc.creatorVojisavljević, Katarina
dc.creatorChevreux, Pierrick
dc.creatorJouin, Jenny
dc.creatorMalic, Barbara
dc.date.accessioned2022-04-05T14:48:05Z
dc.date.available2022-04-05T14:48:05Z
dc.date.issued2014
dc.identifier.issn1318-0207
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/747
dc.description.abstractIn this study, we report on the acid-catalysed synthesis of La9.33Si6O26 from lanthanum nitrate or acetate and silicon ethoxide (TEOS) in the ethanol solvent, upon the transition from liquid to amorphous and crystalline phases. The similarity of the Fourier transform infrared spectra of the lanthanum-salt solutions and lanthanum-silicon sols indicates that the lanthanum environment is not changed in the reaction of the La-salt with TEOS. In the nitric-acid catalysed synthesis, the hydrolysis reaction was almost instantaneous, as a consequence of a higher amount of water in this system, which contributed to a high level of chemical heterogeneity in the product. The acetic acid-based synthesis ensured a good mixing of the reagents at the nanometre level, which gave rise to the formation of the pure La9.33Si6O26 powder upon heating at 900 degrees C, and single phase ceramics with 94 % relative density after sintering at 1400 degrees C for 3 h in air, which is 200 degrees C lower temperature then usually reported for the apatite material.en
dc.publisherSlovensko Kemijsko Drustvo, Ljubljana
dc.relationSlovenian research agencySlovenian Research Agency - Slovenia [P2-0105]
dc.relationfoundation of the University of Limoges
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceActa Chimica Slovenica
dc.subjectX-ray diffractionen
dc.subjectsol-gel processen
dc.subjectLa9.33Si6O26 apatiteen
dc.subjectfuel cellsen
dc.subjectFTIRen
dc.titleCharacterization of the Alkoxide-based Sol-gel Derived La9.33Si6O26 Powder and Ceramicen
dc.typearticle
dc.rights.licenseBY
dc.citation.epage541
dc.citation.issue3
dc.citation.other61(3): 530-541
dc.citation.rankM23
dc.citation.spage530
dc.citation.volume61
dc.identifier.pmid25286208
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_rimsi_747
dc.identifier.wos000345283300015
dc.type.versionpublishedVersion


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