Synthesis of Li3VO4 by the citrate sol-gel method and its ionic conductivity

In this paper, the authors report the synthesis of Li3VO4 by the citrate sol-gel method and solid-state reaction method. The powder and sinter samples were characterized by DTA-TG, XRD, TEM, SEM and the AC impedance technique. Compared with the samples obtained by the conventional solid-state reaction, the experimental results show that the Li3VO4 samples prepared by the citrate sol-gel method, of which the diameter of the powders is about 80 nm when the molar ratio of metal ions and citric acid is 1:3, needs a lower temperature and has a greater ionic conductivity. (C) 2002 Published by Elsevier Science B.V.