compositesElectrically conducting polymers (CPs) have considerable flex-ibility in chemical structures and MWCNTs have a p-conjugativestructure with a highly hydrophobic surface responsible for p-p electronic and hydrophobic interaction with the many organiccompounds. Chemical or electrochemical polymerization has beenmainly used to develop polymer/MWCNTs composites. Covalentsidewall functionalization of MWCNT provides a feasible route toincorporate carbon nanotubes in polymer. CPs/MWCNTs compos-ites can lead to new nanocomposites with enhanced electrical andmechanical properties and have shown mechanical stability, sen-sitivity for different techniques and for electrocatalysis [25]. Anoxidant affects the properties of the CPs in chemical approach,but electrochemical polymerization can control the film morphol-ogy, thickness and other characteristics of the polymer coatingwithout any interference. Polymer can be prepared easily in arapid one-step procedure in electrochemical polymerization. Cyclicvoltammetry electro-polymerization of PANI/MWCNTs composite film