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Mesoporous aluminophosphate thin films with cubic pore arrangement
M Mazaj1, S Costacurta, N Zabukovec Logar
1National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.
Abstract:
Mesoporous aluminophosphate thin films with 3D cubic (Im3m) pore arrangement were synthesized for the first time. Thin films were templated with block copolymer nonionic templates Pluronic F127 and F108 and deposited on a glass substrate by dip-coating. In situ SAXS investigations show the formation of a highly ordered mesostructure upon the dip-coating process, which remains stable up to at least 670 K. A cubic mesostructure was observed also by TEM. Template removal process was monitored by TG and FT-IR. A transition from an amorphous aluminophosphate gel to a well-defined aluminophosphate framework was observed by MAS NMR.
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