title: Enhanced electrochemical performance of highly porous supercapacitor electrodes based on solution processed polyaniline thin films.
abstract: Enhancement to the electrochemical performance of supercapacitor electrodes were realized by incorporating highly porous conductive polymer films prepared with solution-processed polyaniline. The resultant nanostructures contained characteristic pores measuring 30-150 nm. Such electrodes generated from a solution of polyaniline-camphorsulfonic acid (PANI/CSA) exhibited higher porosity and electro-catalytic activity than those generated from conventional PANI nanomaterials. These improvements were attributed to faster ion diffusion at the PANI electrode/electrolyte interface. The highest specific capacitance observed for a supercapacitor fabricated with a porous PANI electrode obtained was 361 F g(-1) at 0.25 A g(-1), which is more than twice that of an equivalent electrode made with pristine PANI. Furthermore, supercapacitors made with highly porous PANI electrodes exhibited high electrochemical stability and rate performances.
authors.affiliation: WCU Program of Chemical Convergence for Energy and Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University , Shinlimdong 56-1, Seoul 151-742, Korea.
authors.forename: Sunghun
authors.initials: S
authors.lastname: Cho
authors.forename: Kyoung-Hwan
authors.initials: KH
authors.lastname: Shin
authors.forename: Jyongsik
authors.initials: J
authors.lastname: Jang