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Polylactic acid-based plastic activated NiAl2O4 nanoparticles as highly active positive electrode materials for energy storage supercapacitor

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Abstract

A simple, low-cost, and environmentally benign process for synthesizing nanostructured NiO/NiAl2O4 on multiple kinds of carbon nanostructures (CNS) is presented. This method develops polylactic acid (PLA) based waste plastic materials for the producing CNS. These composites (NiO@NiAl2O4/CNS) were examined as potential electrodes in supercapacitors (SC) as they exhibit good charge/discharge reversibility and provide adequate specific capacitance values with a maximum being 1984 F/g at 0.5 A g-1. It is noteworthy that the cycling stability of this sample at 10 A g-1 maintained 101.7% of its initial capacity even after 5000 GCD cycles. An asymmetric supercapacitor (ASC) was built and analyzed, with NiO@NiAl2O4/CNS serving as the cathode and activated carbon serving as the anode of the device. The concluded device has an energy density of 58 Wh kg-1 with a power density of 986 W kg-1 and a SCs of 216.5 F/g. The results showed that the materials mentioned are a great option to use as electrode materials in applications involving the storage of energy.

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Acknowledgements

The authors would like to thank the Ministry of Science and Technology (MOST) Taiwan for financially supporting this work (Grant number: MOST-110-2211-E-008-042-MY3). The authors also appreciate the Precious Instruments Utilization Center of National Central University in providing analysis facilities. We thank Science and Engineering Research Board, New Delhi, India for the research grant and Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram, India and Department of Physics, Karpagam Academy of Higher Education, Coimbatore, India for providing facilities.

Funding

This research work was supported by the Ministry of Science and Technology (MOST) Taiwan (Grant number: MOST-110-2211-E-008-042-MY3).

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Samikannu Prabu: Formal analysis, Writing-original draft, Methodology. Madhan Vinu: Formal analysis, Writing-original draft. Kung-Yuh Chiang: Supervision, Validation. George Rajendra Kumar and Ranjithkumar R: Writing-review & editing.

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Correspondence to Ranjithkumar Ravi.

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Responsible Editor: George Z. Kyzas

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Samikannu, P., Madhan, V., Chiang, KY. et al. Polylactic acid-based plastic activated NiAl2O4 nanoparticles as highly active positive electrode materials for energy storage supercapacitor. Environ Sci Pollut Res 31, 26606–26617 (2024). https://doi.org/10.1007/s11356-024-32721-3

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  • DOI: https://doi.org/10.1007/s11356-024-32721-3

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