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 a temperature and has a greater ionic conductivity.