Polypyrrole/sisal fiber composites for energy storage

Abstract

Polypyrrole-based electrodes were fabricated for energy storageapplications using sisal fibers as a substrate material. It was foundthat the PPy nanoparticles deposited on the surface of sisal fibercellulose (SFC) connected to form a continuous sheath by taking alongthe microcrystalline cellulose template. The as-prepared nanocompositesdemonstrated a mass-specific capacitance of 367 F/g at 200 mA/g currentdensity in supercapacitor application. Moreover, SFC/PPy electroderetained about 57.8% of Cs retained when the current density increasedfive times. This work provides a straightforward method to utilizerenewable resource sisal microcrystalline cellulose for conductingcomposite, which could apply in sensors, flexible electrodes, andflexible displays. It also opens a new field of potential applicationsof micrometre-scale natural microcrystalline cellulose.