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Inorganic-inorganic nanocomposite: Surface and conductive properties

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dc.contributor.author Sredic, S en
dc.contributor.author Davidovic, M en
dc.contributor.author Spasjevic-de-Bire, A en
dc.contributor.author Mioc, UB en
dc.contributor.author Todorovic, M en
dc.contributor.author Segan, D en
dc.contributor.author Jovanovic, D en
dc.contributor.author Polizos, G en
dc.contributor.author Pissis, P en
dc.date.accessioned 2014-03-01T01:28:41Z
dc.date.available 2014-03-01T01:28:41Z
dc.date.issued 2008 en
dc.identifier.issn 0022-3697 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/18918
dc.subject dielectric properties en
dc.subject.classification Chemistry, Multidisciplinary en
dc.subject.classification Physics, Condensed Matter en
dc.subject.other DIELECTRIC-RELAXATION SPECTROSCOPY en
dc.subject.other 12-TUNGSTOPHOSPHORIC ACID en
dc.subject.other ELECTRICAL-CONDUCTIVITY en
dc.subject.other TEMPERATURE en
dc.subject.other HEXAHYDRATE en
dc.subject.other HYDROGELS en
dc.subject.other NMR en
dc.title Inorganic-inorganic nanocomposite: Surface and conductive properties en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.jpcs.2007.12.023 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.jpcs.2007.12.023 en
heal.language English en
heal.publicationDate 2008 en
heal.abstract Our previous experiences with incorporation of polyoxometalates (POMs) ill different substrates have been very successful, because new nanocomposites with better conductive, catalytical and biochemical characteristics have been obtained. The results of intercalation of different mass% of ammonium decavanadate (ADV) in Al-pillared interlayered clays (Al-PILCs) are presented. The Al-PILCs were prepared using natural raw material, bentonite, containing a high percentage of montmorillonite (MM). Synthesis of ADV has been described in a previous paper. The structure of ADV hexahydrate was determined at low temperature, 100 K. A kappa refinement was performed to estimate the atomic charges. A sol-gel procedure was applied to obtain Al-PILCs composite intercalated with ADV hexahydrate (from 2 to 5 mass% of ADV). Structure and morphological properties of the new material, a nanocomposite of Al-PILCs-ADV, were investigated by X-ray powder diffraction (XRPD) and atomic force microscopy (AFM). To understand better how ADV is incorporated in the MM substrate, specific surface areas, pore structures and pore distributions were determined. Electrical and dielectric properties of the new materials were investigated by thermally stimulated depolarization currents (TSDCs) and broadband dielectric relaxation spectroscopy (DRS). The electrical conductivity of the nanocomposite was found to increase, in relation to MM, by intercalating with a small amount of ADV. (C) 2008 Published by Elsevier Ltd. en
heal.publisher PERGAMON-ELSEVIER SCIENCE LTD en
heal.journalName JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS en
dc.identifier.doi 10.1016/j.jpcs.2007.12.023 en
dc.identifier.isi ISI:000258977500003 en
dc.identifier.volume 69 en
dc.identifier.issue 8 en
dc.identifier.spage 1883 en
dc.identifier.epage 1890 en


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