AUTHOR=Zenasni Mounya , Belhadj Hafida , Kiari Mohamed , Alelyani Magbool , Alhailiy Ali B. , Benyoucef Abdelghani , Bakkour Youssef 

TITLE=Synthesis, characterization, and enhanced electrochemical behavior of polypyrrole doped ZrO2–ZnO electrode materials for supercapacitor applications

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2023.1244699

DOI=10.3389/fenrg.2023.1244699

ISSN=2296-598X

ABSTRACT=electrodes were synthesized using an in-situ chemical oxidative method. The samples were characterized by XRD, FTIR, XPS, UV-vis, TGA and BET. In addition, the electrochemical characteristics of the electrodes is tested by cyclic voltammetry (CV), galvanostatic charge&discharge (G.C.D) and electrochemical impedance spectroscopy (E.I.S). The values of the specific capacitances and the energy densities of the PPy@ZrO2-ZnO (1.0) PPy@ZrO2-ZnO (0.5) at a current density of 0.5 A•g −1 are recorded as (395.3 F•g −1 and 508.5 Wh•kg −1 ) and (195.3 F•g −1 and 351.5 Wh•kg −1 ), respectively. Furthermore, the electrode stability for the formed samples was also determined, which exhibited specific capacitance retention at 90.