Studying the formation of nanoporous and nanotubular titanium layers by electrochemical impedance spectroscopy

Studying the formation of nanoporous and nanotubular titanium layers by electrochemical impedance... Nanoporous and nanotubular titanium layers have been obtained via electrolytic etching in a mixed organic-inorganic electrolyte. The formation of layers has been studied in situ by electrochemical impedance spectroscopy. It has been shown that the impedance of an electrochemical cell is governed by the impedance of the contact between the electrolyte and titanium at the bottom of nanoporous and nanotubular layers almost throughout the entire process except the initial period. It has been revealed that the electrical resistance of the space charge region in a titanium layer is higher than the charge transfer resistance at the electrolyte/TiO x interface. This indicates that the rate of the growth of porous and nanotubular layers obtained via etching in an organic-inorganic electrolyte is limited by the transfer of titanium and oxygen ions through an oxide layer instead of the diffusion of ions in the electrolyte. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Microelectronics Springer Journals

Studying the formation of nanoporous and nanotubular titanium layers by electrochemical impedance spectroscopy

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Engineering; Electrical Engineering
ISSN
1063-7397
eISSN
1608-3415
D.O.I.
10.1134/S1063739713080040
Publisher site
See Article on Publisher Site

Abstract

Nanoporous and nanotubular titanium layers have been obtained via electrolytic etching in a mixed organic-inorganic electrolyte. The formation of layers has been studied in situ by electrochemical impedance spectroscopy. It has been shown that the impedance of an electrochemical cell is governed by the impedance of the contact between the electrolyte and titanium at the bottom of nanoporous and nanotubular layers almost throughout the entire process except the initial period. It has been revealed that the electrical resistance of the space charge region in a titanium layer is higher than the charge transfer resistance at the electrolyte/TiO x interface. This indicates that the rate of the growth of porous and nanotubular layers obtained via etching in an organic-inorganic electrolyte is limited by the transfer of titanium and oxygen ions through an oxide layer instead of the diffusion of ions in the electrolyte.

Journal

Russian MicroelectronicsSpringer Journals

Published: Nov 14, 2013

References

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