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Polyaniline-Coated MgCo2O4 Composite Boosts Supercapacitor Performance

A polyaniline-coated MgCo2O4 hybrid electrode achieved a specific capacitance of 141.93 F g−1 and retained 88.71% of its capacitance over 10,000 cycles, about double the performance of the pristine oxide. A new hybrid electrode material combining polyaniline with a magnesium cobalt oxide spinel has shown markedly higher charge-storage capacity than the oxide alone, according to a study published in the journal Ionics The composite, prepared by coating MgCo2O4 nanostructures with the conducting polymer polyaniline, delivered a specific capacitance of 141.93 F g−1 at a current density of 0.1 A g−1, roughly double the 69.04 F g−1 measured for pristine MgCo2O4 under the same conditions.The researchers synthesized the material in two stages Second, aniline was polymerized chemically through oxidative polymerization directly onto the oxide surface, producing the hybrid denoted P@MCO…

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