Publikationen

Preparation of mesoporous titania by surfactant-assisted sol-gel processing of acetaldoxime-modified titanium alkoxides

Autor(en)
Jingxia Yang, Herwig Peterlik, Marina Lomoschitz, Ulrich Schubert
Abstrakt

Sol-gel processing of acetaldoximate-modified titanium alkoxides in the presence of the non-ionic surfactants Pluronic F127 or Brij56 was investigated. Phase-purity, nanocrystal sizes, specific surface areas and pore diameters were compared with materials prepared under the same conditions with either oxime or surfactant. Concomitant use of both organic compounds turned out to give anatase with superior properties. Influence of surfactant proportion, calcination temperature and heating rate on the materials properties was investigated. X-ray diffraction experiments and small-angle scattering investigations allowed developing a clear understanding on how the structure develops during calcination and how the organic components influence the growth process.

Organisation(en)
Dynamik Kondensierter Systeme
Externe Organisation(en)
Technische Universität Wien
Journal
Journal of Non-Crystalline Solids
Band
356
Seiten
1217-1227
Anzahl der Seiten
11
ISSN
0022-3093
DOI
https://doi.org/10.1016/j.jnoncrysol.2010.04.035
Publikationsdatum
2010
Peer-reviewed
Ja
ÖFOS 2012
1030 Physik, Astronomie, 103009 Festkörperphysik, 103015 Kondensierte Materie, 103018 Materialphysik
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/preparation-of-mesoporous-titania-by-surfactantassisted-solgel-processing-of-acetaldoximemodified-titanium-alkoxides(2a358819-6b47-43e3-a294-e1b8fa5d6eba).html