Solid-state synthesis and characterization of polyaniline/multi-walled carbon nanotubes composite

► The solid-state synthesis method can be applied for fabrication of the PANI/MWNTs composite. ► The strongest interaction between the PANI and MWNTs occurs in the composite with 16 wt% MWNTs. ► The composite with 16wt% PANI/MWNTs has better electrochemical performances than others.