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Chemical Vapor Synthesis of FeOx-BaTiO3Nanocomposites

Mojić-Lanté, Bojana and Djenadic, Ruzica and Chakravadhanula, Venkata Sai Kiran and Kübel, Christian and Srdić, Vladimir V. and Hahn, Horst and Mullins, W. (2015):
Chemical Vapor Synthesis of FeOx-BaTiO3Nanocomposites.
In: Journal of the American Ceramic Society, Wiley Blackwell, USA, pp. 1724-1730, 98, (6), ISSN 00027820,
[Online-Edition: http://dx.doi.org/10.1111/jace.13531],
[Article]

Abstract

Nanocomposite powders of FeOx-BaTiO3 (FO-BTO) have been prepared by chemical vapor synthesis (CVS) in a single-step process. The optimal parameters (reactor temperature, reactor length, precursor ratio) for the synthesis were investigated in an initial step for the individual systems, iron oxide (FO), and barium titanate (BTO); and in a second step optimized for the synthesis of the nanocomposites. The solid iron precursor was thermally evaporated, whereas the solid Ba- and Ti precursors were vaporized using laser flash evaporation to obtain ultrafine crystalline FO, BTO, and FO-BTO nanoparticles. The possibility to influence the mass ratios of the two phases in FO-BTO mixture by adjusting the ratio of the precursor in the two precursor delivery units has been investigated. The potential of CVS for the synthesis of nanocomposites containing iron oxide and barium titanate ultrafine crystalline nanopowders with particle size bellow 10nm is demonstrated.

Item Type: Article
Erschienen: 2015
Creators: Mojić-Lanté, Bojana and Djenadic, Ruzica and Chakravadhanula, Venkata Sai Kiran and Kübel, Christian and Srdić, Vladimir V. and Hahn, Horst and Mullins, W.
Title: Chemical Vapor Synthesis of FeOx-BaTiO3Nanocomposites
Language: English
Abstract:

Nanocomposite powders of FeOx-BaTiO3 (FO-BTO) have been prepared by chemical vapor synthesis (CVS) in a single-step process. The optimal parameters (reactor temperature, reactor length, precursor ratio) for the synthesis were investigated in an initial step for the individual systems, iron oxide (FO), and barium titanate (BTO); and in a second step optimized for the synthesis of the nanocomposites. The solid iron precursor was thermally evaporated, whereas the solid Ba- and Ti precursors were vaporized using laser flash evaporation to obtain ultrafine crystalline FO, BTO, and FO-BTO nanoparticles. The possibility to influence the mass ratios of the two phases in FO-BTO mixture by adjusting the ratio of the precursor in the two precursor delivery units has been investigated. The potential of CVS for the synthesis of nanocomposites containing iron oxide and barium titanate ultrafine crystalline nanopowders with particle size bellow 10nm is demonstrated.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 98
Number: 6
Publisher: Wiley Blackwell, USA
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 10 Feb 2016 09:09
Official URL: http://dx.doi.org/10.1111/jace.13531
Identification Number: doi:10.1111/jace.13531
Funders: B. M. L. acknowledges the support of the German Academic Exchange Service for a fellowship (DAADA/11/84495) and the possibility to conduct research in the Joint Research Laboratory Nanomaterials - TU Darmstadt and KIT, Germany, for a period of 6 months., Financial support from Ministry of Science of Republic of Serbia (project III45021) is also acknowledged.
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