Highly fluorine-doped mesoporous metal oxides (up to 40%) have been successfully synthesized by the topotactic direct fluorination synthesis strategy, wherein mesoporous metal oxides (TiO2 ZrO2, Al2O3, Nb2O5 and Ta2O5) are used as starting materials and elemental fluorine F2 is used as a fluorinationagent. These novel fluorinated mesoporous materials maintain homologous mesostructures with high surface areas, narrow pore size distributions, and large pore volumes after fluorination. The surface areas, pore sizes, pore volumes and F atomic concentrations for these materials could be adjusted in a wide range by varying the fluorination time and temperature. This direct fluorination method for preparation of F-doped mesoporous metal oxides can be extended to synthesis of a wide range of fluorine-doped porous organic and inorganic nanocomposites.

New topotactic synthetic methodology for synthesis of highly fluorine (F)-doped mesoporous metal oxides

243rd National Meeting (2012)

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