Ordered meso-/macroporous silica and titania films by breath figure templating in combination with non-hydrolytic sol–gel processing

Autor(en)

Andrea Feinle, Johanna Akbarzadeh, Herwig Peterlik, Nicola Hüsing

Abstrakt

A facile and cost efficient approach towards meso-/macroporous silica and titania materials is presented by a combination of breath figure (BF) templating with non-hydrolytic sol–gel processing and evaporation-induced self-assembly. Coatings as well as powders can be synthesized by simply casting sols containing the respective metal alkoxide/chloride mixture in the presence of a polymeric cellulose acetate butyrate (CAB) solution and small amounts of water into Petri dishes. For the siliceous products a long range ordered mesopore network has been obtained, while for titania crystalline products comprising interparticle mesoporosity with only a low degree of long range ordering were synthesized. The addition of CAB to the sol induced the formation of macropores. It was found that the ageing time of the sol after homogenization by ultrasonication as well as the polymer content play an important role in the formation of the macroporous morphology.

Organisation(en)

Dynamik Kondensierter Systeme

Externe Organisation(en)

Paris-Lodron Universität Salzburg

Journal

Microporous and Mesoporous Materials

Band

217

Seiten

233-243

Anzahl der Seiten

11

ISSN

1387-1811

DOI

https://doi.org/10.1016/j.micromeso.2015.06.043

Publikationsdatum

11-2015

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie, 103018 Materialphysik, 103009 Festkörperphysik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Mechanics of Materials, Chemistry(all), Materials Science(all)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/ordered-mesomacroporous-silica-and-titania-films-by-breath-figure-templating-in-combination-with-nonhydrolytic-solgel-processing(20136a1d-d463-4d66-9498-c8033b7e8c12).html