Serveur d'exploration sur le nickel au Maghreb

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Electrochemical and SEM investigations of the influence of gluconate on the electroless deposition of Ni-Cu-P alloys

Identifieur interne : 000659 ( Main/Exploration ); précédent : 000658; suivant : 000660

Electrochemical and SEM investigations of the influence of gluconate on the electroless deposition of Ni-Cu-P alloys

Auteurs : H. Larhzil [Maroc] ; M. Cisse [Maroc] ; R. Touir [Maroc] ; M. Ebn Touhami [Maroc] ; M. Cherkaoui [Maroc]

Source :

RBID : Pascal:08-0122929

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English descriptors

Abstract

The effect of gluconate on the deposition rate and the deposit composition was examined at low pH of solution. The deposition rate exhibit a maximum and the content of copper present a minimum when the gluconate concentration changes between 0 and 40 g/l. The kinetic study carried out by cyclic voltammetry and electrochemical impedance showed that the gluconate acts on the anodic and cathodic reactions. The activation energy of the alloy deposition was determined. In addition, gluconate does not affect the crystallinity of the Ni-Cu-P deposit.


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<div type="abstract" xml:lang="en">The effect of gluconate on the deposition rate and the deposit composition was examined at low pH of solution. The deposition rate exhibit a maximum and the content of copper present a minimum when the gluconate concentration changes between 0 and 40 g/l. The kinetic study carried out by cyclic voltammetry and electrochemical impedance showed that the gluconate acts on the anodic and cathodic reactions. The activation energy of the alloy deposition was determined. In addition, gluconate does not affect the crystallinity of the Ni-Cu-P deposit.</div>
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