Electrochemical Capacitance of Cobalt Oxide Nanotubes on Nickel Foam
V. Yagmur, F.E. Atalay, H. Kaya, D. Avcu and E. Aydogmus
Inonu University, Science and Art Faculty, Department of Physics, Malatya, 44280, Turkey
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In this study, densely packed Co3O4 nanotubes for supercapacitors have been obtained by means of chemically depositing cobalt hydroxide within a porous anodic aluminum oxide and then annealed at 360°C. The morphological properties obtained Co3O4 nanotubes were studied by scanning electron microscopy, the chemical composition was determined by examination of the energy dispersive X-ray spectra. Supercapacitor characteristics such as charging/discharging and impedance (Z) characteristics were also examined.

DOI: 10.12693/APhysPolA.123.215
PACS numbers: 81.07.De, 82.47.Uv, 88.80.fh