ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 46, Number 3
JKCSEZ 46(3)
June 20, 2002 

We report the synthesis and characterization of the perovskite nanotubes made by sol-gel template syn-thesis.Both lead titanate (PbTiO₃ : PT), lead zirconate (PbZrO₃ : PZ) and lead zirconium titanate (PbZrO₃ -PbTiO₃ : PZT) solid solution nanotubes were prepared with a chelate sol-gel of titanium isopropoxide (Ti(OPrⁱ)₄ ), zirconium tet-rabutoxide (Zr(OBu)₄ ) and the respective lead acetate (Pb(OAc)₂ -3H₂O). WhatmanRanodisc membranes, with a 200㎚ pore size, served as the template. After the removal of the template in the 6M-NaOH, scanning electron microscopy shows that the shapes formed are 200 ㎚ outer diameter tubes with 50㎜ lengths. Transmission electron microscopy and electron diffraction reveal that the tubes are polycrystalline. The PT nanotubes so far have shown an anomalous transition temperature, 234.4℃ as measured by DSC with a small particle size, 15.4 ㎚ determined by X-ray analysis with the aid of Scherrer’s equation.