Investigation of Electrochemical Performance of PmAP/WO3 Composite

Abstract

PmAP and PmAP/WO3 composite are synthesized by chemical oxidation polymerization process. Synthesized materials are investigated by UV Visible, SEM and cyclic-voltagram (CV) techniques. SEM study of as prepared materials is indicated formation of different sized crystals (small and aggregated). In UV Visible spectra analyses, both transitioned (i.e., π-π* transition and charge transfer of polaron band) are observed. Tauc expression is used to estimate optical band gap. Estimated optical band gap is to be 3.09 eV. Oxidation-reduction potential profile is detected in cyclic voltammetry (CV) analyses of PmAP and PmAP/WO3 composite.

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

“…The highest capacitance values were achieved at lower currents because ions could easily flow between the electrode surface and the active sites of the electrolyte. The characteristics necessary for a pseudocapacitive-type material are demonstrated by the inverse relationship between specific capacitance and current density [60,61]. Electrochemical impedance measurements were conducted in the frequency range of 1 Hz to 100 kHz to explore the conductive and capacitive properties of the Zn3(VO4)2 (90/10, 80/20, 50/50, and 80/20) materials in their assembled state.…”