In this investigation nanocrystalline titania powders were produced by the chemical vapour synthesis (CVS) route and characterized by standard techniques of XRD, HRTEM and BET. The effects of precursor/gas flow rates, hotwall temperature and system pressure on the particle size and distribution, as well as phase composition of the synthesized nanocrystalline titania powder, were studied. It was demonstrated that by suitably adjusting the process parameters during CVS it becomes possible to control the anatase crystallite size, specific surface area and the rutile content in the synthesized nanocrystalline titania powders. © 2008 IOP Publishing Ltd.

S. S. Bhattacharya

Department of Metallurgical and Materials Engineering

Imteyaz Ahmad Md

Crystallite size

Nanocrystalline powders

Oxide minerals

particle size

Powders

Titanium dioxide

ANATASE CRYSTALLITES

Chemical vapours

NANOCRYSTALLINE TITANIA

Process parameters

SYSTEM PRESSURE

Nanocrystals

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CORRIGENDUM: Effect of process parameters on the chemical vapour synthesis of nanocrystalline titania Effect of process parameters on the chemical vapour synthesis of nanocrystalline titania

Journal of Physics D: Applied Physics

The chemical vapour synthesis (CVS) route is a versatile process that can be used for the synthesis of nanocrystalline ceramics with very small crystallite sizes having a narrow particle size distribution. In this study, a CVS technique was used to prepare nanocrystalline titania from tetraisopropyl orthotitanate at a processing temperature of 1273 K (1000 °C). High resolution transmission electron microscopy, x-ray diffraction and nitrogen adsorption techniques were used for the characterization of the as-synthesized powders. Green bodies were produced by a combination of uniaxial and cold isostatic pressing, which were then sintered. A simple pressureless sintering route was established that led to the production of a dense titania ceramic with a uniform microstructure and an average grain size well in the nanophase regime. © 2006 IOP Publishing Ltd.

Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis

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Journal of the European Ceramic Society

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Journal of Materials Science

Melting behavior and origin of strain in ball-milled nanocrystalline Al powders

Chemical Engineering Science

Effect of reaction temperature on CVD-made TiO2 primary particle diameter

Effect of process parameters on the chemical vapour synthesis of nanocrystalline titania

Journal	Journal of Physics D: Applied Physics
Publisher	Institute of Physics Publishing
ISSN	00223727
Open Access	Yes