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Controlled growth of titania nanospheres in supercritical carbon dioxide using a novel surfactant stabilised precursor

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<mark>Journal publication date</mark>2006
<mark>Journal</mark>Journal of Materials Chemistry
Issue number2
Volume16
Number of pages3
Pages (from-to)159-161
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The titania nanospheres were synthesized from the controlled hydrolysis of a mixture of titanium(IV) isopropoxide and the precursor, [Ti(OPr i)3(Kry)]n in supercritical carbon dioxide. The use of sc-CO2 in the reaction , eliminates the need for organic solvents, optimizes manufacturing efficiency and produces materials with tailored properties. Simultaneous thermal analysis (STA) data for the nanospheres was carried out from room temperature (RT) to 800°C. The X-ray powder diffraction (XRD) pattern of the heat treated powder (600° C in air), reveals only phase anatase (TiO2).