Synthesis and electrochemical testing of polyaniline attached manganese dioxide and functionalized multi-walled carbon nanotubes based active composite material

Abstract

This work deals with the synthesis and electrochemical testing of a ternary nanocomposite named MnO2-NH-PANI/FMWCNTs. The testing showed a specific capacitance of 356F/g of the material at a scan rate of 5 mV s−1 with retention of it up to 5000 cycles at 5 mA cm−2. The nanocomposite achieved a specific energy of 14.8 Wh kg−1 at a specific power of 1250 W kg−1. The formation of stable films of the electroactive materials on electrode substrates was achieved by the polymer-grafted metal oxide. Therefore, the work highlighted the importance of polymer grafting on electroactive materials for supercapacitor application.