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Polyaniline / Copper Nanocomposites For Enhanced Electrode Applications

Author(s): Sumangala R & A. Sobha

Electrode materials influence the energy density, power density, durability and efficiency of energy storage capacitors. PANI and PANI/CuCl2 composites were synthesized by chemical oxidation method. PANI/ CuCl2 composite is found to have enhanced electrical properties compared to pure PANI. Incorporation of nano CuCl2 in the PANI polymer matrix was confirmed by XRD. The XRD pattern indicated the crystalline phase of CuCl2. Evaluation of electrical properties of 2, 3 and 4 wt% of Cu doped PANI showed that AC conductivity increased exponentially above critical frequency. In agreement with this observation, the impedance value is found to decrease. 4 wt % Cu doped PANI(PC3) samples were showing almost stable phase conductivity and impedance over a wide range of frequency, with specific capacitance of 56.25F/g, which suggests its suitability as an effective material for electrode application in electrochemical storage devices.

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