NickelMaghrebV1, France, Analysis, bibRecord, 000306

Hydrogen incorporation in Ni-P films prepared by electroless deposition

Identifieur interne : 000306 ( France/Analysis ); précédent : 000305; suivant : 000307

Hydrogen incorporation in Ni-P films prepared by electroless deposition

Auteurs : M. Saaoudi [Maroc, France] ; E. Chassaing [France] ; M. Cherkaoui [Maroc] ; M. Ebntouhami [Maroc]

Source :

Journal of applied electrochemistry [ 0021-891X ] ; 2002.

RBID : Pascal:03-0263673

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Dépôt par oxydoréduction, Réaction électrochimique, Alliage base nickel, Phosphore Alliage, Alliage binaire, Electrode, Cuivre, Effet milieu, pH, Sodium Hypophosphite, Nickel Sulfate, Effet concentration, Microbalance quartz, Stabilité thermique, Analyse thermique, Calorimétrie différentielle balayage, Thermodésorption, Hydrogène.
Wicri :
- topic : Cuivre, Hydrogène.

English descriptors

KwdEn :
- Binary alloy, Concentration effect, Copper, Differential scanning calorimetry, Electrochemical reaction, Electrodes, Electroless plating, Experimental study, Hydrogen, Medium effect, Nickel Sulfates, Nickel base alloys, Phosphorus Alloys, Quartz microbalance, Sodium Hypophosphites, Thermal analysis, Thermal stability, Thermodesorption, pH.

Abstract

Electroless NiP films, with 12 to 16 wt % P, were deposited from a moderately acid solution. Thermogravimetric analysis indicates the presence of occluded hydrogen in the layers, which desorbs upon heating. The amount of incorporated hydrogen decreases when the pH of the solution or the nickel sulfate concentration is increased; by contrast it increases with hypophosphite concentration. Cyclic voltammetry, using an electrochemical quartz crystal microbalance, confirms the existence of parasitic reactions, namely the reduction of protons of the solvent during the cathodic process and oxidation of hydrogen during the dissolution of the layers. This behaviour is in qualitative agreement with the proposed reaction scheme.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000374
to stream PascalFrancis, to step Curation: 000067
to stream PascalFrancis, to step Checkpoint: 000393
to stream Main, to step Merge: 000A50
to stream Main, to step Curation: 000A27
to stream Main, to step Exploration: 000A27
to stream France, to step Extraction: 000306

Links to Exploration step

Pascal:03-0263673

Le document en format XML

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<front><div type="abstract" xml:lang="en">Electroless NiP films, with 12 to 16 wt % P, were deposited from a moderately acid solution. Thermogravimetric analysis indicates the presence of occluded hydrogen in the layers, which desorbs upon heating. The amount of incorporated hydrogen decreases when the pH of the solution or the nickel sulfate concentration is increased; by contrast it increases with hypophosphite concentration. Cyclic voltammetry, using an electrochemical quartz crystal microbalance, confirms the existence of parasitic reactions, namely the reduction of protons of the solvent during the cathodic process and oxidation of hydrogen during the dissolution of the layers. This behaviour is in qualitative agreement with the proposed reaction scheme.</div>
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Hydrogen incorporation in Ni-P films prepared by electroless deposition

Hydrogen incorporation in Ni-P films prepared by electroless deposition

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri