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

被引:0
作者
Aleksey I. Volkov
Svetlana N. Eliseeva
Elena G. Tolstopjatova
Veniamin V. Kondratiev
机构
[1] Saint Petersburg State University,Institute of Chemistry
来源
Journal of Solid State Electrochemistry | 2016年 / 20卷
关键词
Conducting polymers; Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate; Composite electrode materials; Manganese dioxide; Electrochemical properties;
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中图分类号
学科分类号
摘要
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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页码:3209 / 3212
页数:3
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