You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/41544
Title: 
Morphology and topography analysis of mesoporous titania templated by micrometric latex sphere arrays
Author(s): 
Institution: 
  • Anhanguera Bandeirante Univ
  • Universidade Estadual de Campinas (UNICAMP)
  • Universidade de São Paulo (USP)
  • UNICEP
  • Universidade Federal de Pelotas (UFPEL)
  • Universidade Estadual Paulista (UNESP)
ISSN: 
1387-1811
Sponsorship: 
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Chemistry Institute of the University of São Paulo, Brazil
Sponsorship Process Number: 
FAPESP: 08/00463-2
Abstract: 
In this work, mesoporous titania is prepared by templating latex sphere arrays with four different sphere diameters at the micrometric scale (phi > 1 mu m). The mesoporous titania homogeneously covers the latex spheres and substrate, forming a thin coating characterized by N-2 adsorption isotherm, small angle X-rays scattering, atomic force, field emission and transmission electronic microscopies. Mesoporous titania has been templated into different shapes such as hollow particles and monoliths according to the amount of sol used to fill the voids of the close packed latex spheres. Titania topography strongly depends on the adsorption of polymeric segments over latex spheres surface, which could be decreased by changing the dimensions of latex spheres (phi = 9.5 mu m) generating a lamellar architecture. Thus, micrometric latex sphere arrays can be used to achieve new surface patterns for mesoporous materials via a fast and inexpensive chemical route for construction of functional devices in different technological fields such as energy conversion, inclusion chemistry and biomaterials. (C) 2011 Elsevier B.V. All rights reserved.
Issue Date: 
1-Apr-2012
Citation: 
Microporous and Mesoporous Materials. Amsterdam: Elsevier B.V., v. 152, p. 84-95, 2012.
Time Duration: 
84-95
Publisher: 
Elsevier B.V.
Keywords: 
  • Mesoporous titania
  • Chemical template
  • Thin film
  • Particles aggregation
  • Surface characterization
Source: 
http://dx.doi.org/10.1016/j.micromeso.2011.11.056
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/41544
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.