Еlectrochemical properties of poly-3,4-ethylenedioxythiophene:polystyrene sulfonate/manganese dioxide composite electrode material


Electrochemical properties of a composite material based on PEDOT:PSS and MnO2 were investigated. The composite was synthesized by spontaneous redox reaction between reduced fragments of PEDOT:PSS (poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)) and permanganate ions. PEDOT:PSS/MnO2 composite dispersion can be drop-cast both on rigid and flexible, conducting and non-conducting substrates. Electrochemical studies of PEDOT:PSS/MnO2 electrodes were performed in 0.1 M LiClO4 aqueous electrolyte. The specific capacity values of the composite were 46 and 33 F g−1 at 10 and 50 mV s−1, respectively. Capacity retention after 1000 galvanostatic charge-discharge cycles was 73 %. The morphology of the material was investigated by SEM; the oxidation state of manganese in oxide was characterized by XPS.

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The authors thank V.D. Kalganov for the SEM measurements in the Interdisciplinary Resource Centre for Nanotechnology of Saint Petersburg State University. We also thank Resource Centre of Physical methods of surface investigations of Saint Petersburg State University for providing XPS analysis. The financial support from the Russian Foundation for Basic Research (grant no. 16-03-00457 A) is gratefully acknowledged.

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Correspondence to Veniamin V. Kondratiev.

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This paper is dedicated to Prof. Gyӧrgy Inzelt, a distinguished Hungarian electrochemist, on his 70th birthday anniversary. Professor G. Inzelt is interested and involved in many aspects of modern electrochemistry, in particular, electrochemistry of conducting polymers. His contribution to electrochemistry of conducting polymers stimulated many other contemporary researches in this area.

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Volkov, A.I., Eliseeva, S.N., Tolstopjatova, E.G. et al. Еlectrochemical properties of poly-3,4-ethylenedioxythiophene:polystyrene sulfonate/manganese dioxide composite electrode material. J Solid State Electrochem 20, 3209–3212 (2016). https://doi.org/10.1007/s10008-016-3194-7

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  • Conducting polymers
  • Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate
  • Composite electrode materials
  • Manganese dioxide
  • Electrochemical properties