Impedance of an Aluminum Electrode with a Nanoporous Oxide

A. I. Shcherbakov; I. G. Korosteleva; I. V. Kasatkina; V. E. Kasatkin; L. P. Kornienko; V. N. Dorofeeva; V. V. Vysotskii; V. A. Kotenev

doi:10.1134/S2070205119040208

Impedance of an Aluminum Electrode with a Nanoporous Oxide

作者: Shcherbakov A.I.¹, Korosteleva I.G.¹, Kasatkina I.V.¹, Kasatkin V.E.¹, Kornienko L.P.¹, Dorofeeva V.N.¹, Vysotskii V.V.¹, Kotenev V.A.¹
隶属关系:
1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
期: 卷 55, 编号 4 (2019)
页面: 689-694
栏目: Nanoscale and Nanostructured Materials and Coatings
URL: https://journals.rcsi.science/2070-2051/article/view/205354
DOI: https://doi.org/10.1134/S2070205119040208
ID: 205354

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详细

The methods of electrochemical impedance spectroscopy and electron microscopy with X-ray electron probe analysis are used to study two types of oxide films on aluminum: a smooth compact one and a porous one (nanooxide) formed by two-stage oxidation. An equivalent circuit is chosen that agrees well with the obtained impedance spectra and allows estimating the thickness and conductivity of barrier oxide layers and also the area occupied by nanopores for various film types.