Fabrication of 3D Flexible Electrode Derived from Biomass Material for Hybrid Supercapacitor via Electrospinning

Abstract

Balsa wood, a naturally occurring material that is renewable and environmentally friendly has undergone delignification protocol. Flexible electrodes play a pivotal role in the development of wearable electronics, enabling conformable and adaptable interfaces for comfortable user interactions and various biomedical applications. Fossil fuels, although once the cornerstone of global energy, now face increasing scrutiny due to their environmental impact, spurring efforts towards cleaner, renewable energy sources and technologies. In this work, nanofibers composites including reduce graphene oxide (rGO), polypyrrole (PPy), and polyvinyl alcohol (PVA) as rGO/PPy are deposited on balsa wood template using an easy, low-cost, and sustainable approach which is the electrospinning technique. Nanofibers composites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy and electrochemical measurements CV, GCD, EIS done by Corrtest workstation (China). The highest specific capacitance is 52mF/g was obtained at 0.05mA current density. The redox peaks in CV show its hybrid nature so prepared flexible electrode which is derived from balsa wood is suitable and reliable for hybrid supercapacitors.