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Electrophoretic deposition of TiO2 nanopillars from stable colloidal solution.

Published online by Cambridge University Press:  20 June 2013

Vincent Jouenne
Affiliation:
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière BP 32229 44322 Nantes cedex 3 France
Jean-Luc Duvail
Affiliation:
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière BP 32229 44322 Nantes cedex 3 France
Luc Brohan
Affiliation:
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière BP 32229 44322 Nantes cedex 3 France
Mireille Richard-Plouet
Affiliation:
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière BP 32229 44322 Nantes cedex 3 France
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Abstract

Titanium dioxide nanoparticles were synthesized by solvothermal treatment in the presence of oleic acid and oleylamine. As Ti(IV) reactant, crystals of [Ti8O12 (H2O)24]Cl8, HCl, 7H2O were preferred because their hydrolysis and condensation can be controlled in ethanol/water solution. The organic surfactants allowed the control of the shape and they can be removed by an acid treatment of the particles. The TiO2 nanoparticles can then be re-dispersed in an ethanol-based charging solution. A fixed applied voltage promotes the electrophoretic deposition of the nanoparticles (<15 nm in size) into pores of anodized aluminium oxide (AAO) template.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

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References

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