Electrochemical activity of a polyaniline/polyaniline-grafted multiwalled carbon nanotube mixture produced by a simple suspension polymerization

► A polyaniline (PANi)/PANi-grafted multiwalled carbon nanotube (PANi/PANi-g-MWCNT) mixture was prepared by a simple suspension (dynamic interfacial) polymerization. ► Depending on the doping level, the electrical conductivity of PANi/PANi-g-MWCNT was improved by more than four orders of magnitude over that of PANi. ► The composite also displayed high electrochemical activity with improved stability in an oxygen-saturated acidic solution.