Soft solution fluorine-free synthesis of anatase nanoparticles with tailored morphology

Calatayud, David G. and Jardiel, Teresa and Rodríguez, Mónica and Peiteado, Marco and Fernández Hevia, Daniel and Caballero Cuesta, Amador (2013). Soft solution fluorine-free synthesis of anatase nanoparticles with tailored morphology. "Ceramics International", v. 39 (n. 2); pp. 1195-1202. ISSN 0272-8842. https://doi.org/10.1016/j.ceramint.2012.07.044.

Description

Title: Soft solution fluorine-free synthesis of anatase nanoparticles with tailored morphology
Author/s:
  • Calatayud, David G.
  • Jardiel, Teresa
  • Rodríguez, Mónica
  • Peiteado, Marco
  • Fernández Hevia, Daniel
  • Caballero Cuesta, Amador
Item Type: Article
Título de Revista/Publicación: Ceramics International
Date: March 2013
ISSN: 0272-8842
Volume: 39
Subjects:
Freetext Keywords: A. Powders: chemical preparation; A. Grain growth; B. Electron microscopy; D. TiO2 anatase
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Física Aplicada a las Tecnologías de la Información [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

TiO2 nanoparticles with tailored morphology have been synthesized under exceptionally soft conditions. The strategy is based on the use of a non-aqueous alcoholic reaction medium in which water traces, coming either from the air (atmospheric water) or from an ethanol–water azeotropic mixture (ethanol 96%), are incorporated in order to accelerate hydrolysis of the Ti–precursor. Moreover, organic surfactants have been used as capping agents so as to tailor crystal growth in certain preferential directions. Combinations of oleic acid and oleylamine, which lead to the formation of another surfactant, dioleamide, are employed instead of fluorine-based compounds, thus increasing the sustainability of the process. As a result, TiO2 nanostructured hierarchical microspheres and individual nanoparticles with exposed high-energy facets can be obtained at atmospheric pressure and temperatures as low as 78 °C.

More information

Item ID: 32146
DC Identifier: http://oa.upm.es/32146/
OAI Identifier: oai:oa.upm.es:32146
DOI: 10.1016/j.ceramint.2012.07.044
Official URL: http://www.sciencedirect.com/science/article/pii/S0272884212006670?np=y
Deposited by: Memoria Investigacion
Deposited on: 13 Oct 2014 18:35
Last Modified: 13 Oct 2014 18:35
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