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ElectroComponent Science and Technology
Volume 1, Issue 2, Pages 121-127

Electrolytic Rectification and Cathodic Charge Reversibility of Some Valve Metals

Department of Metallurgy and Materials Science, University of Nottingham, Nottingham, UK

Received 2 April 1974; Accepted 6 July 1974

Copyright © 1974 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Optical studies and observations of electrode cathodic charge reversibility suggest a bulk rather than local effect in the electrolytic rectification behaviour of Ti and Nb electrodes. The proposed model involves reversible incorporation of hydrogen into the surface oxide films where it acts as a donor impurity. Applicability of the model to Al and Zr electrodes is discussed.