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Influence of the oxyanion nature of the electrolyte on the corrosion/passivation behaviour of nickel

Trompette, Jean-Luc and Massot, Laurent and Vergnes, Hugues Influence of the oxyanion nature of the electrolyte on the corrosion/passivation behaviour of nickel. (2013) Corrosion Science, vol. 74. pp. 187-193. ISSN 0010-938X

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Official URL: http://dx.doi.org/10.1016/j.corsci.2013.04.042

Abstract

The electrochemical behaviour of nickel in the presence of various electrolyte solutions at 0.1 mol/L concentration exhibits a distinction according to the oxyanion nature of the investigated anions. Passivity is achieved with oxyanions whereas it fails with anions not containing oxygen. SIMS and XPS measurements performed from isotopic and non isotopic KNO₃ electrolytes indicate that the oxygen and nitrogen atoms from nitrate oxyanions are incorporated into the passive film during anodic polarization and with evidence of a direct bonding between nitrogen and nickel surface.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at Corrosion Science website: http://www.sciencedirect.com/science/article/pii/S0010938X13001777
HAL Id:hal-00875485
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Vincent GERBAUD
Deposited On:22 Oct 2013 08:55

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