Nano Archive

In-Flight Formation of Nano-Crystalline Titanium Dioxide Powder in a Plasma Jet and Its Characterization

Ananthapadmanabhan, P. V. and Vijay, M. and Thiyagarajan, T. K. and Sreekumar, K. P. and Selvarajan, V. and JiaguoYu, and Liu, Shengwei (2010) In-Flight Formation of Nano-Crystalline Titanium Dioxide Powder in a Plasma Jet and Its Characterization. Plasma Science and Technology, 12 (4). p. 426.

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Official URL: http://stacks.iop.org/1009-0630/12/i=4/a=09

Abstract

Nanocrystalline titanium dioxide powder was synthesized by in-flight oxidation of titanium dihydride (TiH 2 ) powder in a thermal plasma jet. TiH 2 powder was injected into the thermal plasma jet and allowed to react with oxygen injected downstream the jet. Characterization of the powder by various analytical tools indicated that the powder consisted of nano-sized titanium dioxide particles consisting predominantly of the anatase phase. It is suggested that the thermo-chemistry of the oxidation process contributes significantly to the formation of nano-sized titania. The large energy released during the oxidation process dissociates the TiO 2 particles into TiO (g) and titanium vapour, which recombine downstream with oxygen and form nano particles of TiO 2 .

Item Type:Article
ID Code:11213
Deposited By:Prof. Alexey Ivanov
Deposited On:01 Nov 2011 23:27
Last Modified:02 Nov 2011 00:47

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