Comparative Electrochemical Polymerization of Polyaniline (PANI): Influence of Cyclic vs. Pulse Voltammetry on Electrochemical performance

El-Mekawy, Sameh A. A.; Abd El Maksoud, S. A.; Hamouda, Rana

doi:10.21608/ajbas.2025.391660.1260

Comparative Electrochemical Polymerization of Polyaniline (PANI): Influence of Cyclic vs. Pulse Voltammetry on Electrochemical performance

Document Type : Original Article

Authors

¹ Physics and Math. Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egyp

² Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt,ort Said University

³ Physics and Math. Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt, rana.hamouda@eng.psu.edu.eg

10.21608/ajbas.2025.391660.1260

Abstract

Conducting polymers (CPs), such as polyaniline (PANI), poly ortho aminophenol (POAP), poly ethylene dioxythiophene (PEDOT) and polypyrrole (PPY) are considered the main materials for supercapacitors, which are one of the most important energy storage devices. This paper focuses on the electrochemical polymerization of PANI by two different methods: cyclic voltammetry (CV) PANI/CV and pulse current polymerization (PC) PANI/PC, then studying the effect of the polymerization method on the resulting polymers. The morphology of the polymer films and the surface roughness (topography) were characterized using scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The electrochemical properties of the fabricated PANI/CV, PANI/PC were investigated via CV and galvanostatic charge-discharge (GCD) using a three-electrode system. The value of the specific capacitance of the prepared polymers reached 276.1 F/g and 536.3 F/g for CV and PC, respectively. Capacitance retention was 66.42% and 56.73% for CV and PC, respectively, after 1000 cycles at 200mV/s. A higher specific capacitance with satisfactory cycling stability was attained in the case of PC polymerization.

Keywords