“…These unconventional properties of an organic material encourage more and more interest numerous other conducting polymers with similar properties were synthesized, such as polypyrrole (PPy), polyaniline (PANI), polythiophene (PTh), and poly (3,4-ethylenedioxythiophene) (PEDOT) etc., were discovered [3,4]. Among various conductive polymers, PPy has been extensively studied because of its extensive applications in the fields of antistatic material, rechargeable batteries, sensors, printing circuit board, stealth material, electrochromic material, drug delivery and others owing to its high electrical conductivity, redox reversibility, good environment stability, good biocompatibility, relatively easy synthesis and low toxicity [5][6][7][8].…”