Synthesis of Stable PVA/PANI Films for Supercapacitor Use
Introduction to PVA/PANI Films
Chemical synthesis of PVA/polyaniline (PANI) thin films using a two-step process.
PVA layer spin-coated on FTO glass substrate; PANI dip-coated afterward.
Focus on variations in PANI layer thickness from 293nm to 2367nm.
Characterization Methods
Characterization of optical, morphological, and electrochemical properties.
FT-IR and Raman spectroscopy confirm PANI phase presence.
SEM analysis reveals a porous, spongy structure.
Electrochemical Performance
Electrochemical testing in 1M H2SO4 electrolyte.
Optimized specific capacitance of 571 Fg−1 at 880nm thickness.
Stability shown over 20,000 cycles with a minor degradation rate.