Zhao, Oriented synthesis of Co 3O 4 core-shell microspheres for high-performance asymmetric supercapacitor. The results imply that Co 3O 4 nanoparticles would be a promising material for electrodes in supercapacitors.ĭ. Also the EIS studies reveal the diffusive charge transfer mechanism that enhances the accumulation of charges. The Co 3O 4 nanorods are attributed to high surface to volume ratio which results in more provisions for active sites and in turn enhance the redox reactions. The Co 3O 4 electrode material exhibited prominent specific capacitance of 373.84 F g −1 at the current density of 1.5 A g −1 with superior cyclic stability of 92% after 1000 cycles. The electrochemical studies were carried out using three-electrode system. The TEM studies confirmed the existence of nano-rods of length ranges from 50 to 160 nm. The materials were characterized by XRD, FTIR, SEM, EDAX, HR-TEM and XPS. In this work, nano-sized Co 3O 4 materials have been prepared by facile coprecipitate technique. Electrodes made up of nano-architecture arrays are promising candidate to strengthen the electrochemical performance of the energy storage devices. The harvesting of renewable energy storage has prompted extensive study on the energy storage devices, chiefly batteries and supercapacitors.
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