Journal article

Synthesis of macroporous titania and inorganic composite materials from coated colloidal spheres - A novel route to tune pore morphology

DY Wang, RA Caruso, F Caruso

CHEMISTRY OF MATERIALS | AMER CHEMICAL SOC | Published : 2001

Abstract

A new method for fabricating macroporous inorganic and inorganic composite materials with tailored pore morphologies (i.e., pore wall thickness and open or closed pore structure) is described. Polystyrene (PS) colloidal spheres coated with polyelectrolyte (PE) multilayers (PS-PE) or silica nanoparticle (SiO2)/PE hybrid multilayers (PS-SiO2/PE) have been used as templates to produce macroporous structures. By infiltration of a titanium dioxide (TiO2) precursor, titanium (IV) isopropoxide, into templates of close-packed coated colloidal spheres, followed by removal of the organic material (PS core and PE layers) by calcination, macroporous TiO2 and inorganic composite structures were produced...

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University of Melbourne Researchers