Photoelectrochemical characterization of TiO2 coatings derived from commercial sol solution for cathodic protection applications

Photoelectrochemical characterization of TiO2 coatings derived from commercial sol solution for... Preliminary photoelectrochemical characterization of TiO2 coatings made using a commercial sol solution on indium–tin oxide glass substrates was carried out under aerated conditions. The sample with TiO2 coating without heat treatment yielded the most negative open-circuit potential on ultraviolet illumination, while the 400°C heat-treated sample gave the maximum photocurrent. Both properties are desirable for photocathodic protection applications. A TiO2 coating, when directly applied on copper plate and processed under similar conditions as that of ITO, however, showed p-type behavior on ultraviolet illumination though a copper plate electrically coupled to ITO glass coated with TiO2 showed lowering of electrode potential on ultraviolet illumination. The reasons for the above observations are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Photoelectrochemical characterization of TiO2 coatings derived from commercial sol solution for cathodic protection applications

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Publisher
Springer Journals
Copyright
Copyright © 2005 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/1568567053956761
Publisher site
See Article on Publisher Site

Abstract

Preliminary photoelectrochemical characterization of TiO2 coatings made using a commercial sol solution on indium–tin oxide glass substrates was carried out under aerated conditions. The sample with TiO2 coating without heat treatment yielded the most negative open-circuit potential on ultraviolet illumination, while the 400°C heat-treated sample gave the maximum photocurrent. Both properties are desirable for photocathodic protection applications. A TiO2 coating, when directly applied on copper plate and processed under similar conditions as that of ITO, however, showed p-type behavior on ultraviolet illumination though a copper plate electrically coupled to ITO glass coated with TiO2 showed lowering of electrode potential on ultraviolet illumination. The reasons for the above observations are discussed.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 1, 2005

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