Synthesis and Characterization of Mesostructured Inorganic-Organic Complexes Using Layered Perovskite K2Nb03F and Surfactants

摘要

Mesostructured inorganic-organic complexes using layered-perovskite K2NbO3F and several surfactants as the structure directing agent (SDA) were synthesized and characterized. Only lamellar phase was obtained using alkylamine (CnA, n=8, 12, 14, 16, 18). 2d-hexagonal phase was obtained using alkyltrimethylammonium chloride (CnTMACl) for n=12, 14, in addition to lamellar phase for n=14, 16, 18. This result indicates that the SDA affects the mesostructure of the complex. The TEM-EDX measurement revealed that the K/Nb ratio of the complex using C16TMACl is less than that using C16A. This result suggests the formation mechanism of the complex using C16TMACl, which was formed by ion exchange of C16TMA+ and K+. The d100 of complexes increased with increasing alkyl chain length of SDA. This result indicates that the periodicityof the mesostructure can be controlled by selection of the SDA.