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Title: Excess titanium in barium titanate nanoparticles directly synthesized from solution
Authors: Qi, JQ
Sun, L
Wang, Y 
Chen, WP
Du, P
Xu, YG
Li, LT
Nan, CW
Chan, HLW 
Keywords: Ceramics
Electronic materials
Chemical synthesis
Dielectric properties
Issue Date: 2010
Source: Journal of physics and chemistry of solids, 2010, v. 71, no. 12, p. 1676-1679 How to cite?
Journal: Journal of Physics and Chemistry of Solids 
Abstract: The formation mechanism of excess titanium in BaTiO3 nanoparticles is different from that in BaTiO3 bulk materials. In this study, we analyzed the concentration of excess titanium in BaTiO 3 nanoparticles, which were directly synthesized from solution at 65 °C and it was found that it can reach an abnormal high concentration and keep the normal perovskite structure. The mechanism is discussed from the points of both defect chemistry and surface effect. The dielectric property of the ceramics fabricated from as-prepared nanoparticles with different concentration of excess titanium is also studied.
ISSN: 0022-3697
DOI: 10.1016/j.jpcs.2010.09.004
Appears in Collections:Journal/Magazine Article

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