Enhanced electrochemical performance of innovative BaAl2O4/PANI nanocomposite for next generation supercapacitor applications

초록

Supercapacitors are currently receiving a valuable attention due to their convenient deployment, modular design, extended life time, low cost, and eco-friendliness. Transition metal oxides with conducting polymers, serve as electrode materials for supercapacitors having far more surface area and the others supercapacitive properties. In this work, novel BaAl2O4/PANI nanocomposite fabricated by using simple yet reliable hydrothermal process. X-ray diffraction, Brunauer-Emmett-Teller, scanning electron microscopy, and Fourier Transform infrared spectroscopy are used to confirm crystallinity, high surface area, morphology, and functional group, respectively of fabricated electrodes. The prepared nanocomposite exhibited a significant surface area (51.2 m2/g) as determined by BET analysis. SEM revealed that BaAl2O4 was densely distributed on PANI, which possessed a smoother and more compact surface. When electrochemical analysis was determined in 3 M KOH, BaAl2O4/PANI shows the Csp 1247 F g- 1, Ed 25.01 Wh kg- 1 and Pd of 190 W kg- 1. Additionally, synthesized material presented exceptional consistency following 10000th stability cycle. The BaAl2O4/PANI nanocomposite's Rs and Rct values, as determined by EIS analysis, are 0.98 ohm and 0.08 respectively. These results shown that BaAl2O4/PANI nanocomposite is a prospective option for next-generation supercapacitors because of its outstanding and noteworthy properties, as well as its high stability and affordability.

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