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Solvothermal synthesis of titania-zirconia composite

Published online by Cambridge University Press:  01 February 2006

Xin M. Wang
Affiliation:
Manchester Materials Science Centre, University of Manchester,Manchester M1 7HS, United Kingdom
Ping Xiao*
Affiliation:
Manchester Materials Science Centre, University of Manchester,Manchester M1 7HS, United Kingdom
*
a)Address all correspondence to this author. e-mail: ping.xiao@manchester.ac.uk
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Abstract

Nanocomposite particles of anatase-type titania (TiO2) and cubic/tetragonal zirconia were synthesized from hydrothermal processing of TiCl4 and ZrOCl2·8H2O or ZrCl4 alcohol solutions at 160–200 °C. It was found that the morphologies and composition of the composite particles were mainly controlled by the precursors and the sequence by which the precursors were added. The TiO2–ZrO2 composite particles with nanoscale uniformity can be obtained by solvothermal processing of TiCl4 or a ZrO2 precursor together with preformed ZrO2 or yttria stabilized zirconia (YSZ) nanoparticles in ethanol. A novel one-step and non-template method for preparing ZrO2–TiO2 core–shell structured composite particles with hollow interior was identified, and possible reaction mechanism was suggested.

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Articles
Copyright
Copyright © Materials Research Society 2006

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