One-step synthesis of MnO2 doped poly(aniline-co-o-aminophenol) and the capacitive behaviors of the conducting copolymer

MnO2 was doped into a conducting copolymer, poly(aniline-co-o-aminophenol) (PANOA), via a one-step process during the chemical oxidative polymerization. The doping of MnO2 could enhance the electrochemical activity and reversibility of the copolymer. When used as the electrode materials of a supercapacitor, the capacitive behaviors of the as-prepared PANOA–MnO2 were superior to those of pure PANOA, especially at high potential scan rate and high charge–discharge current density. The MnO2 doped copolymer also had an excellent cyclic performance.

MnO2 doped conducting copolymer (PANOA) is synthesized facilely via a one-step process, in which the doping of MnO2 and the chemical oxidative copolymerization of aniline and o-aminophenol is achieved simultaneously. Due to the introduction of MnO2, the as-prepared PANOA–MnO2 exhibits better capacitive behaviors compared to PANOA, especially at high potential scan rate and high charge/discharge current density.Figure optionsDownload as PowerPoint slide