alexa Enhanced Specific Capacitance Of Iron Doped Polyaniline/sulfonated Carbon Nanotubes After Freeze-drying Treatment For All-solid-state Symmetric Supercapacitor | 71525
ISSN: 2090-4541

Journal of Fundamentals of Renewable Energy and Applications
Open Access

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2nd International Conference on Battery and Fuel Cell Technology

Sherif A El-Khodary
Housing & Building National Research Center, Egypt
Posters & Accepted Abstracts: J Fundam Renewable Energy Appl
DOI: 10.4172/2090-4541-C1-036
Abstract
The electrode materials based on iron doped polyaniline (Fe-PANI) over the surface of sulfonated multi-walled carbon nanotubes (s-MCNTs) also followed by freeze-drying treatment ([email protected]) are reported for high performance electrochemical energy storage applications. The structure, morphology and thermal properties of the obtained samples are detected. Also, N2 sorption isotherm for [email protected] shows high specific surface area 280.26 m2 g-1 calculated by Brunauer-Emmett-Teller (BET) method after the freeze-drying treatment. The electrochemical properties of the electrode samples are assessed by cyclic voltammetry and galvanostatic charge/discharge testes in the 1 M H2SO4 aqueous electrolyte. The [email protected] electrode with this high surface area shows high specific capacitance of 2105.64 F g-1 at 1 A g-1. The symmetric solid-state supercapacitor device (SCs) based on [email protected] electrode gave a specific capacitance of 776.85 F g-1 at 1 A g-1, energy density 13.55 Wh kg-1, power density 177.50 W kg-1 and exhibit rate capability (≈59% retention at 20 A g-1). Furthermore, the symmetric supercapacitor device shows good cycling stability (91.6%) after 500 cycles at a scan rate 200 mV s-1, suggesting the potential application of [email protected] for energy storage devices.
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