CobaltMaghrebV1, Main, Exploration, bibRecord, 000880

Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates

Identifieur interne : 000880 ( Main/Exploration ); précédent : 000879; suivant : 000881

Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates

Auteurs : A. Sahari [Algérie] ; A. Azizi [Algérie] ; G. Schmerber [France] ; M. Abes [France] ; J. P. Bucher [France] ; A. Dinia [France]

Source :

Catalysis today [ 0920-5861 ] ; 2006.

RBID : Pascal:06-0371437

Descripteurs français

Pascal (Inist)
- Electrochimie, Nucléation, Croissance, Alliage, Substrat, Cobalt, Dépôt électrolytique, Morphologie, Catalyse hétérogène, Cobalt alliage, Fer alliage, Platine, Silicium, Face cristalline, Métal transition Alliage.
Wicri :
- topic : Alliage, Cobalt, Platine.

English descriptors

KwdEn :
- Alloys, Cobalt, Cobalt alloy, Crystal face, Electrochemistry, Electrodeposition, Growth, Heterogeneous catalysis, Iron alloy, Morphology, Nucleation, Platinum, Silicon, Substrate, Transition metal Alloys.

Abstract

Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si(1 0 0) surface from watts (mixed chloride sulfate) baths were studied by voltammetric, chronoamperometric and AFM measurements. The CoFe alloys were deposited from solution with molar ratio of (1/1) and (10/1). The Scharifker and Hills model was employed to analyse the current transients. For both Co and CoFe (10/1) alloys the nucleation was a good agreement with the instantaneous model followed by 3D diffusion-limited growth. Inversely, for CoFe (1/1) alloy the nucleation was an agreement with the progressive model. It is evident that the compositions of the electrolyte influence greatly the type of nucleation. The atomic force microscopy (AFM) images revealed a compact and a granular structure of the electrodeposited Co layers and CoFe alloys.

Affiliations:

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to stream Main, to step Curation: 000880

Le document en format XML

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<term>Cobalt alloy</term>
<term>Crystal face</term>
<term>Electrochemistry</term>
<term>Electrodeposition</term>
<term>Growth</term>
<term>Heterogeneous catalysis</term>
<term>Iron alloy</term>
<term>Morphology</term>
<term>Nucleation</term>
<term>Platinum</term>
<term>Silicon</term>
<term>Substrate</term>
<term>Transition metal Alloys</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Electrochimie</term>
<term>Nucléation</term>
<term>Croissance</term>
<term>Alliage</term>
<term>Substrat</term>
<term>Cobalt</term>
<term>Dépôt électrolytique</term>
<term>Morphologie</term>
<term>Catalyse hétérogène</term>
<term>Cobalt alliage</term>
<term>Fer alliage</term>
<term>Platine</term>
<term>Silicium</term>
<term>Face cristalline</term>
<term>Métal transition Alliage</term>
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<front><div type="abstract" xml:lang="en">Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si(1 0 0) surface from watts (mixed chloride sulfate) baths were studied by voltammetric, chronoamperometric and AFM measurements. The CoFe alloys were deposited from solution with molar ratio of (1/1) and (10/1). The Scharifker and Hills model was employed to analyse the current transients. For both Co and CoFe (10/1) alloys the nucleation was a good agreement with the instantaneous model followed by 3D diffusion-limited growth. Inversely, for CoFe (1/1) alloy the nucleation was an agreement with the progressive model. It is evident that the compositions of the electrolyte influence greatly the type of nucleation. The atomic force microscopy (AFM) images revealed a compact and a granular structure of the electrodeposited Co layers and CoFe alloys.</div>
</front>
</TEI>
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Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates

Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri