Inorganic-inorganic nanocomposite: Surface and conductive properties

Sredic, S; Davidovic, M; Spasjevic-de-Bire, A; Mioc, UB; Todorovic, M; Segan, D; Jovanovic, D; Polizos, G; Pissis, P

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