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dc.contributor.authorKarakassides, M. A.en
dc.contributor.authorGournis, D.en
dc.contributor.authorPetridis, D.en
dc.date.accessioned2015-11-24T17:32:00Z-
dc.date.available2015-11-24T17:32:00Z-
dc.identifier.issn0009-8558-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13651-
dc.rightsDefault Licence-
dc.subjectreduced-charge montmorilloniteen
dc.subjectsynthetic fluorine micasen
dc.subjectli-montmorillonitesen
dc.subjectir-spectraen
dc.subjectmigrationen
dc.subjectclaysen
dc.subjectsmectiteen
dc.subjectlithiumen
dc.subjecthalidesen
dc.subjectlayersen
dc.titleAn infrared reflectance study of Si-O vibrations in thermally treated alkali-saturated montmorillonitesen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1180/claymin.1999.034.3.04-
heal.identifier.secondary<Go to ISI>://000082563000004-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.publicationDate1999-
heal.abstractInfrared reflectance spectra of Li-, Na-, K-, Rb- and Cs-saturated samples of montmorillonite Zenith-N (Milos, Greece) have been measured in the 400-1300 cm(-1) region in an attempt to elucidate the behaviour and migration properties of alkali cations after heating the montmorillonites at 300 degrees C for 24 h. Deconvolution of the complex Si-O stretching band reveals that the component band that arises from the asymmetric stretching vibrations of the silicon-apical oxygen units exhibits the biggest change upon heating the montmorillonites. The normalized absorption area of this band has been correlated with the decrease in the layer charge due to the cation migration. Analysis of the IR data for each alkali-saturated montmorillonite has shown that only Li+ migrates near, or to, vacant octahedral sites.en
heal.publisherMineralogical Societyen
heal.journalNameClay Mineralsen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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