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Preparation and characterization of polybithiophene/β-MnO2 composite electrode for oxygen reduction


A composite material of polybithiophene (PBTh) and β-MnO2 was prepared by electrodeposition of organic conducting polymer on β-MnO2 surface in 0.1 M LiClO4/0.01 M BTh/CH3CN. Synthesized material was characterized by using various techniques, i.e., X-ray diffractometry (XRD), scanning electron microscopy (SEM), and magnetic measurements (SQUID). Electrochemical features of oxygen reduction reaction were investigated using cyclic voltammetry on β-MnO2 and PBTh/β-MnO2 electrode, and chronopotentiometry tests were carried out at different currents. The results show that peak current and potential of oxygen reduction are changed for β-MnO2 modified by polybithiophene.

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This work was done in the frame of the France–Algeria collaborative program Tassili No. 08MDU743.

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Correspondence to Ahmed Bahloul.

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Bahloul, A., Nessark, B., Habelhames, F. et al. Preparation and characterization of polybithiophene/β-MnO2 composite electrode for oxygen reduction. Ionics 17, 239–246 (2011).

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  • β-MnO2
  • Polybithiophene
  • Impedance spectroscopy
  • Electrocatalysis
  • O2 reduction reaction