Heterogeneous Growth of Anodic Oxide Film on a Polycrystalline Titanium Electrode Observed with a Scanning Electrochemical Microscope
- 1 January 2000
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 147 (2) , 524-529
- https://doi.org/10.1149/1.1393227
Abstract
A scanning electrochemical microscope (SECM) was applied to study anodic oxide film grown on a polycrystalline titanium electrode in deaerated pH 8.4 borate solution. The probe current images of SECM could detect the heterogeneous growth of anodic oxide film, depending on the substrate crystal grains. This heterogeneity increased with increasing the film formation potential at the potential higher than 3 V (SHE). The study of the dependence of film thickness on the substrate grain has been also supported with Raman microprobe spectroscopy. © 2000 The Electrochemical Society. All rights reserved.Keywords
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