Sol-gel prepared active ternary oxide coating on titanium in cathodic protection

The characteristics of a ternary oxide coating, on titanium, which consisted of TiO2, RuO2 and IrO2 in the molar ratio 0.6:0.3:0.1, calculated on the metal atom, were investigated for potential application for cathodic protection in a seawater environment. The oxide coatings on titanium were prepare...

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Main Authors: VLADIMIR V. PANIC, BRANISLAV Z. NIKOLIC
Format: Article
Language:English
Published: Serbian Chemical Society 2007-12-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.shd.org.yu/JSCS/Vol72/No12/JSCS_V72_No12-23.pdf
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author VLADIMIR V. PANIC
BRANISLAV Z. NIKOLIC
author_facet VLADIMIR V. PANIC
BRANISLAV Z. NIKOLIC
author_sort VLADIMIR V. PANIC
collection DOAJ
description The characteristics of a ternary oxide coating, on titanium, which consisted of TiO2, RuO2 and IrO2 in the molar ratio 0.6:0.3:0.1, calculated on the metal atom, were investigated for potential application for cathodic protection in a seawater environment. The oxide coatings on titanium were prepared by the sol gel procedure from a mixture of inorganic oxide sols, which were obtained by forced hydrolysis of metal chlorides. The morphology of the coating was examined by scanning electron microscopy. The electrochemical properties of activated titanium anodes were investigated by cyclic voltammetry and polarization measurements in a H2SO4- and NaCl-containing electrolyte, as well as in seawater sampled on the Adriatic coast in Tivat, Montenegro. The anode stability during operation in seawater was investigated by the galvanostatic accelerated corrosion stability test. The morphology and electrochemical characteristics of the ternary coating are compared to that of a sol-gel-prepared binary Ti0.6Ru0.4O2 coating. The activity of the ternary coating was similar to that of the binary Ti0.6Ru0.4O2 coating in the investigated solutions. However, the corrosion stability in seawater is found to be considerably greater for the ternary coating.
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spelling doaj.art-fb73ffcad1a64945ab57d10647a004292022-12-22T02:38:14ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392007-12-01721213931402Sol-gel prepared active ternary oxide coating on titanium in cathodic protectionVLADIMIR V. PANICBRANISLAV Z. NIKOLICThe characteristics of a ternary oxide coating, on titanium, which consisted of TiO2, RuO2 and IrO2 in the molar ratio 0.6:0.3:0.1, calculated on the metal atom, were investigated for potential application for cathodic protection in a seawater environment. The oxide coatings on titanium were prepared by the sol gel procedure from a mixture of inorganic oxide sols, which were obtained by forced hydrolysis of metal chlorides. The morphology of the coating was examined by scanning electron microscopy. The electrochemical properties of activated titanium anodes were investigated by cyclic voltammetry and polarization measurements in a H2SO4- and NaCl-containing electrolyte, as well as in seawater sampled on the Adriatic coast in Tivat, Montenegro. The anode stability during operation in seawater was investigated by the galvanostatic accelerated corrosion stability test. The morphology and electrochemical characteristics of the ternary coating are compared to that of a sol-gel-prepared binary Ti0.6Ru0.4O2 coating. The activity of the ternary coating was similar to that of the binary Ti0.6Ru0.4O2 coating in the investigated solutions. However, the corrosion stability in seawater is found to be considerably greater for the ternary coating.http://www.shd.org.yu/JSCS/Vol72/No12/JSCS_V72_No12-23.pdfruthenium-oxide-based coatingssol-gel procedureiridium oxidecathodic protectionstability
spellingShingle VLADIMIR V. PANIC
BRANISLAV Z. NIKOLIC
Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
Journal of the Serbian Chemical Society
ruthenium-oxide-based coatings
sol-gel procedure
iridium oxide
cathodic protection
stability
title Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
title_full Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
title_fullStr Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
title_full_unstemmed Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
title_short Sol-gel prepared active ternary oxide coating on titanium in cathodic protection
title_sort sol gel prepared active ternary oxide coating on titanium in cathodic protection
topic ruthenium-oxide-based coatings
sol-gel procedure
iridium oxide
cathodic protection
stability
url http://www.shd.org.yu/JSCS/Vol72/No12/JSCS_V72_No12-23.pdf
work_keys_str_mv AT vladimirvpanic solgelpreparedactiveternaryoxidecoatingontitaniumincathodicprotection
AT branislavznikolic solgelpreparedactiveternaryoxidecoatingontitaniumincathodicprotection