Synthesis and Characterization of Self-Assembled V_2O_5 Mesostructures Intercalated by Polyaniline

摘要

A new nanocomposite of vanadium pentoxide (V_2O_5) and polyaniline (PANI) were synthesized by in situ oxidative polymerization/intercalation on V_2O_5 powder at room temperature. The reaction was facile and topotactic, forming polyaniline as the emeraldine salt. It was indicated that V_2O_5 itself can catalyze the oxidative polymerization of aniline and that layered structure could make aniline intercalate into the V_2O_5 framework. It makes the in situ polymerization feasible to occur in the layer of V_2O_5 structure. XRD results showed PANI/V_2O_5 nanocomposite possessed lamellar mesostructure, which was determined by an X-ray diffraction peak at 6.5° and SEM photograph. And FT-IR spectrum suggested that there was interaction between PANI and V_2O_5. The hybrid had better thermal stability in N_2 and air ambience.