Study of CNT Intercalated Bi₂O₃/PVDF Composite for Super Capacitors Applications

Abstract

Carbon nanotube (CNT) intercalated‐bismuth oxide (CNT‐Bi2O3)/polyvinylidenefluoride (PVDF) composites are synthesized via sonication and roasting process. The phase structure, bonding, and morphology of CNT‐Bi2O3/PVDF composite are characterized using X‐ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), and scanning electron microscopy (SEM). The capacitance and dielectric constant of the composite electrodes are studied by impedance analyzer. The capacitance and stability of CNT‐Bi2O3/PVDF composite are found to be increased on increasing concentration of Bi2O3 in PVDF composite. These results show that CNT‐Bi2O3/PVDF composite is a very promising electrode material for high‐performance super capacitors.

Dielectric Response of Bi4Ti3O12/PVDF Composite Electrodes for Energy Storage

“…The peaks at 548 and 600 cm −1 are related to Bi-O and Ti-O stretching vibrations [30][31][32] ; however, peaks at 1408, 1521, and 1687 cm −1 are related to C = O and C≡O vibrations. [33] There are many peaks which are common in FTIR spectra of individual PVDF and BTO attributes interaction between PVDF and BTO in composites. [34]…”