Abstract
Macroporous silicate thick films were prepared by the sol-gel dip-coating method accompanied by the phase separation using the composition of methyl-trimethoxysilane (MTMS), nitric acid and dimethylformamide (DMF). The morphology of the film varied to a large extent depending on the time difference between hydrolysis and dipping of the coating solution. The films prepared by early coating had inhomogeneous submicrometer-sized pores on the surface of the film. At increased reaction times, relatively narrow sized internal macropores were observed and their size gradually decreased with the increase of reaction time.
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