The Effect of Concentration Transition Metal Oxide CuO as Activated Carbon-Based Supercapacitor


Maryati Doloksaribu , Erniwati Halawa , Mukti Hamjah Harahap






Vol. 10 No. 4 (2024): April


CuO, Nanoparticle, Nanoporous, Supercapacitor, Surface area

Research Articles


How to Cite

Doloksaribu, M., Halawa, E., & Harahap, M. H. (2024). The Effect of Concentration Transition Metal Oxide CuO as Activated Carbon-Based Supercapacitor. Jurnal Penelitian Pendidikan IPA, 10(4), 1698–1706.


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Supercapacitors are promising energy storage devices in future energy technology. In this research, the primary and applied aspects of supercapacitors are developed. Various techniques have been developed specifically to estimate specific capacitances. Various attempts have been made in the literature to increase the specific capacitance value of the electrode materials. Electrode materials with unique structural and electrochemical properties, such as high capacity and cyclic stability, exhibit good supercapacitor performance. Many new electrode materials have been developed to play an essential role in capacitance behavior. This research focuses on the highly efficient application of nanostructured electrode materials such as nanoporous carbon and metal oxide CuO for supercapacitors. Nanopore carbon is made from coconut shell, which is synthesized using a simple heating method. Next, carbon nanopore and CuO nanoparticle composites were carried out with composition variations of 0.5,10,15, and 20% of the total weight. The results of cyclic voltammetry, electrochemical impedance spectroscopy, and charge-discharge tests, maximum results were obtained on a composition of 5% CuO nanoparticles with a capacitance of 280 F/gr and a conductivity of 1.14 X 10-2 S/cm. This result is due to an increase in the surface area between the pore surfaces, so more ions are trapped, causing the filling process to take place quickly.


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Author Biographies

Maryati Doloksaribu, Universitas Negeri Medan

Erniwati Halawa, Universitas Negeri Medan

Mukti Hamjah Harahap, Universitas Negeri Medan


Copyright (c) 2024 Maryati Doloksaribu, Erniwati Halawa, Mukti Hamjah Harahap

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