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://ucrisportal.univie.ac.at/de/publications/preparation-of-mesoporous-titania-by-surfactantassisted-solgel-processing-of-acetaldoximemodified-titanium-alkoxides(2a358819-6b47-43e3-a294-e1b8fa5d6eba).html