Journal
MATERIALS ADVANCES
Volume 2, Issue 9, Pages 2918-2923Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ma00120e
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- SMaRT Centre
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Carbon coated cobalt oxide (CC-CO3O4) was prepared using sucrose as a carbon precursor, leading to enhanced electrochemical performance. The composite electrode exhibited a maximum specific capacitance of 395 F g(-1) at a scan rate of 5 mV s(-1). The improved conductivity of CC-CO3O4 was attributed to the carbon coating over the cobalt oxide nanoparticles.
Carbon coated cobalt oxide (CC-CO3O4) was prepared by colloidal processing using cobalt oxide and sucrose. Sucrose was used as a soluble carbon precursor in the preparation of CC-CO3O4. CC-CO3O4 was characterized by Brunauer-Emmett-Teller (BET) analysis, X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) respectively. Electrochemical properties of CC-CO3O4 were measured in 1 M KOH electrolyte. CC-CO3O4 exhibited the maximum specific capacitance of 395 F g(-1) at a scan rate of 5 mV s(-1). The enhanced electrochemical performance of CC-CO3O4 may be due to the increased conductivity of the composite electrode by carbon coating over the cobalt oxide nanoparticles.
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