Supercapacitors are energy storage devices, which store energy within the electrochemical double layer at the electrode-electrolyte interface. To achieve high energy density, electrodes should have high surface area that is accessible to the electrolyte. In this study, we prepared porous carbon nanofiber electrodes from polyacrylonitrile (PAN) and polystyrene (PS) polymer blend. Incorporation of pyrolyzing polymer, polystyrene, produce pores when it decomposes during the thermal treatments. The electrode material was prepared by electrospining the blend solution followed by stabilization, carbonization and CO2 activation.  The ratio of PAN and PS was varied to obtain the optimum performance.  Electrochemical behavior of the material was characterized by cyclic voltammetry (CV) and galvanostatic charge/discharge. The preparation of the electrode material and the study of the morphology and electrochemistry will be presented.

? Supercapacitor electrode material from immiscible polymer blend

247th National Meeting (2014)

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