Synthesis of Mesostructured Materials from K2NbO3F as Starting Material

We synthesized mesostructured materials using layered perovskite K 2 NbO 3 F and C n TMACl (n = 12, 14, 16, 18) as starting materials. In the case of n = 16, lamellar phase at pH 9, 10.5 was obtained, while 2D-hexagonal phase at pH 3-7 was observed. This result indicates that the mesophase structure depends on the pH of the reacted solution. The d 1 0 0 of mesostructured materials increased with increasing length of the alkyl chain. This indicates that the periodicity of the mesostructure can be controlled by selection of the surfactant.