Comparative Electrochemical Polymerization of Polyaniline (PANI): Influence of Cyclic vs. Pulse Voltammetry on Electrochemical performance | ||
| Alfarama Journal of Basic & Applied Sciences | ||
| Volume 6, Issue 4, October 2025, Pages 378-394 PDF (1.37 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajbas.2025.391660.1260 | ||
| Authors | ||
| Sameh A. A. El-Mekawy* 1; S. A. Abd El Maksoud2; rana hamouda3 | ||
| 1Physics and Math. Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egyp | ||
| 2Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt,ort Said University | ||
| 3Physics and Math. Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt, rana.hamouda@eng.psu.edu.eg | ||
| 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 | ||
| Supercapacitor; Conducting polymer; Polyaniline; Cyclic and Pulse current voltammetry; Specific capacitance | ||
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