Facile preparation of polyaniline/graphene oxide composite towards electrode materials

Muazzin Mupit, Mohd Asyadi Azam, Muhammad Remanul Islam, Rosli Yunus, Ong Siew Kooi and Mohd Al Fatihhi Mohd Szali Januddi

Energy & Environment, 2024, vol. 35, issue 5, 2476-2496

Abstract: Polyaniline (PANi) reinforced with graphene oxide (GO) composites were synthesized via in-situ polymerization. The GO was synthesized from natural graphite flakes via the modified Hummer's method. The PANi/GO composites were characterized by Raman spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The composites were used as supercapacitor electrodes and the performances were measured by the specific gravimetric capacitance ( C sp ) from cyclic voltammetry and charge/discharge characteristics. The maximum value of C s p was recorded as 36 F/g at a current density of 1 A/g for a loading of 50 wt.% of GO. However, the maximum energy density and power density were recorded as of 2.28 Wh kg −1 and 259.06 W kg −1 , respectively, for the loading of 10 wt.% of GO. Additionally, the PANi/GO exhibited the highest capacitance retention of about 76.96% after 5000 cycles at a current density of 1 A/g. The electrochemical performance of the PANi/GO composites was suitable to be used for energy storage devices application.

Keywords: Composites; graphene oxide; polyaniline; electrodes; supercapacitor cell (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:sae:engenv:v:35:y:2024:i:5:p:2476-2496

DOI: 10.1177/0958305X221150431

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