article · Physica Scripta
Abstract Recently, supercapacitors have been considered an excellent option for improving electrical and electronic systems because of their huge potential as energy storage devices. In this work, two phases of the hydrothermal process and drop casting method were used to fabricate the synthesized composites of Cerium phosphate/MXene (MX) (Ce(PO 4 )/MXene), Manganese phosphate (Mn 3 (PO 4 ) 2 /MXene), and Cerium@Manganese phosphates (Ce(PO 4 )@Mn 3 (PO 4 ) 2 /MXene) electrodes. These electrodes’ structural, morphological, functional, optical and electrochemical characteristics were examined. The electrochemical studies were carried out in a 3-electrode system to determine their specific capacitance, energy and power densities. The maximum obtained specific capacitance of 1125 Fg −1 and 1350 Fg −1 from Ce(PO 4 )@Mn 3 (PO 4 ) 2 /MXene electrode using 1.0 mVs −1 scan rate and 0.5 Ag −1 current density respectively. Using a 1.0 molar solution of Na 2 SO 4 as the electrolyte, 10,000 continuous charge–discharge cycles were achieved with a cyclic stability of 75.7%.
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DOI: 10.1088/1402-4896/ad881a
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