PANI-grafted boron, nitrogen co-doped carbon fiber: An outstanding, high-performance supercapacitor electrode

Abstract

The rapid development of wearable electronic devices demands light-weight, flexible, high performance and eco-friendly supercapacitors. However, an efficacious design and fabrication of a steady structure for the same is still a challenge. Herein, a novel composite of polyaniline (PANI) grafted Boron, Nitrogen co-doped cotton derived carbon fiber (BNCF) has been synthesized via in-situ chemical polymerization. The detailed structural characterization confirms the successful incorporation of granular PANI over the BNCF surface. The supercapacitor performance of the as-synthesized BNCF-PANI electrode was investigated as electrode material for supercapacitor and the capacitance was achieved as high as 370 F g−1 at a current density of 1 A g−1. Moreover, BNCF-PANI based electrode exhibited the energy density of 12.8 Wh kg−1 at current density of 1 A g−1 and power density 2500 W kg−1 at current density of 10 A g−1.