NickelMaghrebV1, Main, Merge, bibRecord, 000C04

Electrocatalytic hydrogenation of ketones and enones at nickel microparticles dispersed into poly(pyrrole-alkylammonium) films

Identifieur interne : 000C04 ( Main/Merge ); précédent : 000C03; suivant : 000C05

Electrocatalytic hydrogenation of ketones and enones at nickel microparticles dispersed into poly(pyrrole-alkylammonium) films

Auteurs : Ahmed Zouaoui [France] ; Olivier Stephan [France] ; Ali Ourari [Algérie] ; Jean-Claude Moutet [France]

Source :

Electrochimica acta [ 0013-4686 ] ; 2000.

RBID : Pascal:01-0066061

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Réaction électrochimique, Hydrogénation, Réduction chimique, Cétone, Enone, Cyclohexane dérivé, Mécanisme réaction, Electrocatalyse, Electrode carbone, Matériau modifié, Polymère conducteur, Pyrrole dérivé polymère, Ammonium quaternaire polymère, Polyélectrolyte, Support catalyseur, Nickel, Etat dispersé, Morphologie, Structure surface, Microscopie électronique balayage, Solution acide, Borique acide, Nickel Sulfate, Sodium Composé, Oxalate, Cyclohexanone, Cyclohexénone.
Wicri :
- topic : Nickel.

English descriptors

KwdEn :
- Acidic solution, Boric acid, Carbon electrode, Catalyst support, Chemical reduction, Conducting polymers, Cyclohexane derivatives, Dispersed state, Electrocatalysis, Electrochemical reaction, Enone, Experimental study, Hydrogenation, Ketone, Modified material, Morphology, Nickel, Nickel Sulfates, Oxalate, Polyelectrolyte, Pyrrole derivative polymer, Quaternary ammonium polymer, Reaction mechanism, Scanning electron microscopy, Sodium Compounds, Surface structure.

Abstract

Nickel microparticles have been dispersed in conducting anion-exchange polymer films coated on carbon electrodes by oxidative electropolymerization of a pyrrole-alkylammonium monomer. Incorporation of nickel metal in polymeric films was effected by electroreduction of polymer coated electrodes in aqueous electrolytes containing nickel-oxalate complexes. The metal deposition process was examined by voltamperometry. Scanning electron microscopy showed a dispersion of metal particles with sizes ranging from 700 to 1200 nm. The electrocatalytic hydrogenation of a variety of cyclohexanones and cyclohexenones at these electrode materials was performed with good current and product yields.

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Pascal:01-0066061

Le document en format XML

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<front><div type="abstract" xml:lang="en">Nickel microparticles have been dispersed in conducting anion-exchange polymer films coated on carbon electrodes by oxidative electropolymerization of a pyrrole-alkylammonium monomer. Incorporation of nickel metal in polymeric films was effected by electroreduction of polymer coated electrodes in aqueous electrolytes containing nickel-oxalate complexes. The metal deposition process was examined by voltamperometry. Scanning electron microscopy showed a dispersion of metal particles with sizes ranging from 700 to 1200 nm. The electrocatalytic hydrogenation of a variety of cyclohexanones and cyclohexenones at these electrode materials was performed with good current and product yields.</div>
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	Serveur d'exploration sur le nickel au Maghreb
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Electrocatalytic hydrogenation of ketones and enones at nickel microparticles dispersed into poly(pyrrole-alkylammonium) films

Electrocatalytic hydrogenation of ketones and enones at nickel microparticles dispersed into poly(pyrrole-alkylammonium) films

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