Wang, K. X.,Morris, M. A.,Holmes, J. D.,Yu, J. H.,Xu, R. R.;

2009

January

Microporous and Mesoporous Materials

Thermally stable nanocrystallised mesoporous zirconia thin films

Validated

()

117

1-2

161

164

A supercritical fluid process method has been developed for fabricating mesoporous zirconia thin films with enhanced thermal stability up to a temperature of 850 degrees C. Both the supercritical CO2 and the precursor tetramethoxysilane play an important role in enhancing the thermal stability of these films. Powder X-ray diffraction, Atomic force microscope, spectroscopic ellipsometry and transmission electron microscope analyses show that the thin films fabricated by the supercritical fluid process method have a highly ordered mesoporous structure, a nanocrystalline inorganic framework and a high optical transparency. These zirconia thin films have potential applications as electrodes in solid oxide fuel cells where high thermal stability is essential. (C) 2008 Elsevier Inc. All rights reserved.

1387-1811

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