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Nonaqueous Synthesis of Barium Titanate Nanocrystals in Acetophenone as Oxygen Supplying Agent

Published online by Cambridge University Press:  15 February 2011

Markus Niederberger  and
Georg Garnweitner
Markus Niederberger
Affiliation:
Max-Planck-Institute of Colloids and Interfaces Colloid Chemistry Research Campus Golm 14424 Potsdam, Germany
Georg Garnweitner
Affiliation:
Max-Planck-Institute of Colloids and Interfaces Colloid Chemistry Research Campus Golm 14424 Potsdam, Germany
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Abstract

Solvothermal reaction of a mixture of metallic barium and titanium isopropoxide in acetophenone leads to the formation of barium titanate nanocrystals. XRD measurements prove the presence of cubic BaTiO3 with traces of BaCO3 as side product. According to TEM investigations, the particles exhibit a nearly spherical particle shape with diameters ranging from 10 to 15 nm. However, due to the lack of any stabilizers, the particles are slightly agglomerated. NMR analysis of the obtained reaction solution shows that aldol condensation reactions of acetophenone and in situ formed acetone provide the water necessary for inducing crystallization and nanoparticle formation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 879: Symposium Z – Chemistry of Nanomaterial Synthesis and Processing , 2005 , Z9.8
Copyright
Copyright © Materials Research Society 2005

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