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Electrochemical Capacitance of Cobalt Oxide Nanotubes on Nickel Foam

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Yagmur V., Atalay F., Kaya H., Avcu D., Aydogmus E.

Acta Physica Polonica A

2013

vol. 123

issue 2

215-217

In this study, densely packed Co_3O_4 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 Co_3O_4 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.

Production of Y-Ba-Cu-O Nanowires and Nanotubes by Electrochemical Method

100%

Kaya H., Atalay F., Avsar D., Yagmur V., Atalay S.

Acta Physica Polonica A

2013

vol. 123

issue 2

209-211

In this work, the technological aspects of great importance YBa_2Cu_3O_{7-x} superconducting materials were produced in the form of nanotube by electrochemical method. The electrochemical deposition conditions for the Y-Ba-Cu deposition in nanoporous Al_2O_3 were investigated. The heat treatment was applied to Y-Ba-Cu/Al_2O_3 nanopatterns, to form superconductive phase. The resulting nanostructures were found to be in length 4-5 μm, 177-210 nm in diameter. The produced nanostructures at - 4 V and more positive potentials were Y-Ba-Cu nanowires, while the nanostructures deposited at the more negative potentials were of nanotube form.

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2 Acta Physica Polonica A

2 2013

2 Atalay F.

2 Kaya H.

2 Yagmur V.

1 Atalay S.

1 Avcu D.

1 Avsar D.

1 Aydogmus E.

Search results

Electrochemical Capacitance of Cobalt Oxide Nanotubes on Nickel Foam

Production of Y-Ba-Cu-O Nanowires and Nanotubes by Electrochemical Method