Synthesis of Bi3.25La0.75Ti3O12 Nanotubes

Abstract:

Bi3.25La0.75Ti3O12 (BLT) nanotubes were synthesized by dipping BLT sol precursor into an anodic aluminum oxide template (AAO). The results indicate that using 4BiNO3(OH)2×BiO(OH), La(NO3)3×6H2O and Ti(C4H9O)4 as starting materials, stable BLT sol can be prepared with solvent of acetic acid and ethylene glycol monomethyl ether. Pure perovskite BLT can be synthesized after calcining the gel that comes from sol with acetic acid and ethylene glycol monomethyl ether as solvent at 500 °C for 1 h and 750 °C for 30 min. BLT nanotubes are stacks of BLT polycrystalline of 8~12 nm and they have a wall thickness of 25 nm and diameter of 300 nm