Cherusseri, Jayesh and Thomas, Susmi Anna and Pandey, A. K. and Zaed, M. A. and Farhana, N. K. and Saidur, R. (2024) Rapid synthesis of cobalt manganese phosphate by microwave-assisted hydrothermal method and application as positrode material in supercapatteries. Scientific Reports, 14 (1). p. 26550. ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-024-77278-w.
Full text not available from this repository.Abstract
Electrochemical energy storage devices with high specific capacity are of utmost important for the next-generation electronic devices. Supercapatteries (SCs) are highly demanded energy storage devices nowadays as these bridge the low energy supercapacitors and low power batteries. Herein, we report a rapid synthesis of cobalt manganese phosphate (COMAP) by microwave-assisted hydrothermal method and facile fabrication of SCs using electrodes comprising of COMAP as positrode material. The effect of precursor concentration on the microstructure and surface morphology of the COMAP samples are examined initially. Further, the electrochemical performance of COMAP electrodes is studied systematically in 3 M KOH (aqueous) electrolyte. COMAP exhibits excellent charge storage capabilities where type of charge storage mechanism is found to be battery-type based on the calculation obtained from Dunn's method. The SC electrode fabricated with COMAP synthesized using cobalt: manganese precursor ratio as 80:20 exhibits a highest specific capacity of 191.4 C/g at a scan rate of 1 mV/s. An asymmetric SC (ASC) cell fabricated with COMAP as positrode and activated carbon (AC) as negatrode exhibits a specific capacity of 165.5 C/g at a current density of 1.8 A/g. The COMAP//AC ASC cell exhibits an energy density of 34.1 Wh/kg at a corresponding power density of 1875 W/kg at a current density of 1.8 A/g.
| Item Type: | Article |
|---|---|
| Funders: | Sunway University, Sunway University Sdn Bhd. (2022) ; (GRTIN-IGS(02)-GAMRG-03-2022), Sunway University Internal Grant Scheme |
| Uncontrolled Keywords: | Cobalt manganese phosphate; Supercapacitor; Supercapattery; Microwave; Hydrothermal |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 20 Feb 2025 03:29 |
| Last Modified: | 20 Feb 2025 03:29 |
| URI: | http://eprints.um.edu.my/id/eprint/47342 |
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