Synthesis and Characterization of Molecular Composite Prepared from Layered Perovskite Oxide, HLa2Ti2NbO10

摘要

A layered perovskite oxide, RbLa2Ti2NbO10, was prepared and investigated for proton exchange and intercalation behaviors. Its protonated form, HLa2Ti2NbO10, exhibits the Br┆nsted acidity and reacts with organic amines. Polyoxonuclear cation, Al13, was then introduced into the interlayer by refluxing octylamine-intercalated compound with an Al13 pillaring solution. These layered oxides were characterized by X-ray diffractometer, thermogravimeter, Fr-infrared spectrometer and elemental analyzer. It is observed that the polyoxonuclear cation-pillared material exhibits a bilayer structure and is thermally more stable than organic counterpart at higher temperatures. The surface area of the pillared material annealed at 400 ∩ was the value of 25.1 m2/g.