A large area, flexible polyaniline/buckypaper composite with a core–shell structure for efficient supercapacitors†
Abstract
We fabricated efficient polyaniline (PANI)/buckypaper supercapacitors based on the continuous growth of flexible carbon nanotube (CNT) films and electro-deposition technique. The PANI/buckypaper electrodes have a core–shell structure which reduces the internal resistance and enhances charge transfer between PANI and CNTs. The performance of supercapacitors depends on the content and morphology of PANI. The PANI/buckypaper supercapacitors show a high specific capacitance of ∼430 F g−1 with a high energy density of ∼140 W h kg−1 and high power density of ∼200 kW kg−1 when the PANI content is about 70 wt%.
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