Mesoporous Oxides of Group 4 Elements Ti, Zr

Crystalline Ti02 is most attractive because it has excellent performance in photocatalytic reactions and energy conversion materials. Ordered crystalline mesoporous Ti02 materials have attracted much attention because of the increased surface area of mesoporous materials. [Pg.157]

Metal Precursor solution Template Solidification gelation Template removal Crystal phase Properties and application s Ref. [Pg.158]

Ti TiCU + template in EtOH (EO)2o(PO)7o (EO)20 40 °C in air Calc. (400 °C) TiOz (anatase) Pore Hexagonal (XRD) Wall thickness 5 nm (TEM) Crystallite size 3 nm (PXRD) Crystallite size 3 nm (TEM) Surface area. 200 m (BET) Pore diameter 6.5 nm (BJH) Porosity 50 % [32,33] [Pg.158]

Ti TiCU + template + EtOH + H2O (1 0.005 40 10 mol) (EO)io4PO)70 (EO)io6 25-35 C under controlled relative humidity Calc. (400 °C) TiOz (anatase) (pdf 21-1272) Pore cubic (Im im) (SAXS) Wall thickness 10 nm (TEM) [40-42] [Pg.158]

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