Obtaining of Ni0.65Zn0.35Fe2O4 /SiO2 nanocomposites by thermal decomposition of complex compounds embedded in silica matrix

Obtaining of Ni0.65Zn0.35Fe2O4 /SiO2 nanocomposites by thermal decomposition of complex compounds embedded in silica matrix

This article presents the results of our investigation on the obtaining of Ni0.65Zn0.35Fe2O4 ferrite nanoparticles embedded in a SiO2 matrix using a modified sol-gel synthesis method, starting from tetraethylorthosilicate (TEOS), metal (Fe,Ni,Zn) nitrates and ethylene glycol (EG). This method consis...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2007-04, Vol.88 (1), p.193-200
Hauptverfasser: STOIA, Marcela, CAIZER, C, STEFANESCU, M, BARVINSCHI, P, JULEAN, I
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Sprache:eng
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Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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container_end_page 200
container_issue 1
container_start_page 193
container_title Journal of thermal analysis and calorimetry
container_volume 88
creator STOIA, Marcela
CAIZER, C
STEFANESCU, M
BARVINSCHI, P
JULEAN, I
description This article presents the results of our investigation on the obtaining of Ni0.65Zn0.35Fe2O4 ferrite nanoparticles embedded in a SiO2 matrix using a modified sol-gel synthesis method, starting from tetraethylorthosilicate (TEOS), metal (Fe,Ni,Zn) nitrates and ethylene glycol (EG). This method consists in the formation of carboxylate type complexes, inside the silica matrix, used as forerunners for the ferrite/silica nanocomposites. We prepared gels with different compositions, in order to obtain, through a suitable thermal treatment, the nanocomposites (Ni0.65Zn0.35Fe2O4)x-(SiO2)100-x (where x=10, 20, 30, 40, 50, 60 mass%). The synthesized gels were studied by differential thermal analysis (DTA), thermogravimetry (TG) and FTIR spectroscopy.
doi_str_mv 10.1007/s10973-006-8004-5
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This method consists in the formation of carboxylate type complexes, inside the silica matrix, used as forerunners for the ferrite/silica nanocomposites. We prepared gels with different compositions, in order to obtain, through a suitable thermal treatment, the nanocomposites (Ni0.65Zn0.35Fe2O4)x-(SiO2)100-x (where x=10, 20, 30, 40, 50, 60 mass%). 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subjects Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
title Obtaining of Ni0.65Zn0.35Fe2O4 /SiO2 nanocomposites by thermal decomposition of complex compounds embedded in silica matrix
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