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180. High-Performance Supercapacitors Based on Hollow Polyaniline Nanofibers by Electrospinning.
writer:Y.-E. Miao, W. Fan, D. Chen, T. X. Liu*
keywords:electrospinning, template, hollow nanofibers, supercapacitors
source:期刊
specific source:ACS Appl. Mater. Interfaces, 2013, 5(10), 4423-4428.
Issue time:2013年

Hollow polyaniline (PANI) nanofibers with controllable wall thickness are fabricated by in situ polymerization of aniline using the electrospun poly(amic acid) fiber membrane as a template. A maximum specific capacitance of 601 F g−1 has been achieved at 1 A g−1, suggesting the potential application of hollow PANI nanofibers for supercapacitors. The superior electrochemical performance of the hollow nanofibers is attributed to their hollow structure, thin wall thickness, and orderly pore passages, which can drastically facilitate the ion diffusion and improve the utilization of the electroactive PANI during the charge−discharge processes. Furthermore, the high flexibility of the self-standing fiber membrane template provides possibilities for the facile construction and fabrication of conducting polymers with hollow nanostructures, which may find potential applications in various high-performance electrochemical devices.