Polyaniline/tungsten carbide(PANI/WC) composite was synthesized by chemical oxidative polymerization of aniline in the presence of tungsten carbide(WC) particles

and aniline polymerization mechanism in the surface of WC particles was studied.Then the composites were characterized by means of SEM

TEM

FTIR

Raman and XRD measurements.The results showed that aniline was preferentially polymerized on the surface of WC to form a layer of PANI on the WC surface.Strong interaction existed between PANI and WC particles

and the crystal structure of WC was unchanged in the composites.The FTIR spectra of PANI/WC composites had obvious blueshift phenomenon due to WC existence

and that the 3446 cm-1 absorption peak of the PANI/WC composites became weaker than that of PANI.In the Raman spectra of PANI/WC composites

stretching vibration peak at 1491 cm-1 of quinine ring CN bond had red-shifted 9 cm-1 and the intensity was also largely increased.The results indicated that there was a chemical bond between PANI and WC

and their chemical bond occurred in the N atoms of CN bond.Polymerization took place at the surface of WC particles to form coreshell structure.