NickelMaghrebV1, Main, Exploration, bibRecord, 000718

Investigation of the cycle stability and diffusivity of hydrogen in the MmNi3.55Mn0.4Al0.3Co0.6Fe0.15 compound

Identifieur interne : 000718 ( Main/Exploration ); précédent : 000717; suivant : 000719

Investigation of the cycle stability and diffusivity of hydrogen in the MmNi3.55Mn0.4Al0.3Co0.6Fe0.15 compound

Auteurs : M. Ben Moussa [Tunisie] ; M. Abdellaoui [Tunisie] ; H. Mathlouthi [Tunisie] ; Jilani Lamloumi [Tunisie] ; A. Percheron Guegan [France]

Source :

Journal of alloys and compounds [ 0925-8388 ] ; 2006.

RBID : Pascal:06-0079384

Descripteurs français

Pascal (Inist)
- Diffusivité, Stockage hydrogène, Voltammétrie cyclique, Propriété électrochimique, Transfert charge, Processus réversible, Cinétique, Dimension particule, Lanthanide alliage, Nickel alliage, Métal transition alliage.

English descriptors

KwdEn :
- Charge transfer, Cyclic voltammetry, Diffusivity, Electrochemical properties, Hydrogen storage, Kinetics, Nickel alloy, Particle size, Rare earth metal alloy, Reversible processes, Transition metal alloy.

Abstract

The hydrogen storage alloy MmNi_3.55Mn_0.4Al_0.3Co_0.6Fe_0.15 was used as a negative electrode in Ni-MH accumulators. The chronopoten-tiometry, the cyclic voltammetry and the chronoamperometry were applied to characterize the electrochemical properties of this alloy. The obtained results showed that the maximum discharge capacity reaches its maximum of 266mAh/g after 16 cycles, and then decreases to 220 mAh/g after 40 charge-discharge cycles. The hydrogen diffusion behaviour in this alloy was characterized by a cyclic voltammetry after activation. The value of the hydrogen diffusion coefficient in the MmNi_3.55Mn_0.4Al_0.3Co_0.6Fe_0.15 compound is equal to 1.95 x 10^-9 cm² s^-1, and the value of the charge-transfer coefficient in this alloy is about 0.6. These results showed that compared to the LaNi₅ compound, this alloy has a better stability in the alkaline solution, a good reversibility and a good kinetic of the electrochemical reaction. The chronoamperometry shows that the average size of the particles concerned by the electrochemical reaction is about 12 μm.

Affiliations:

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Le document en format XML

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Mn<sub>0.4</sub>
Al<sub>0.3</sub>
Co<sub>0.6</sub>
Fe<sub>0.15</sub>
 compound</title>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Investigation of the cycle stability and diffusivity of hydrogen in the MmNi<sub>3.55</sub>
Mn<sub>0.4</sub>
Al<sub>0.3</sub>
Co<sub>0.6</sub>
Fe<sub>0.15</sub>
 compound</title>
<author><name sortKey="Ben Moussa, M" sort="Ben Moussa, M" uniqKey="Ben Moussa M" first="M." last="Ben Moussa">M. Ben Moussa</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institut National de Recherche et d'Analyse Physico-chimique, Pôle Technologique de Sidi Thabet</s1>
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<wicri:noRegion>2020 Sidi Thabet</wicri:noRegion>
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<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Mécanique, Matériaux et Procédés, ESSTT, 5 Avenue Taha</s1>
<s2>Hussein 1008</s2>
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<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
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<wicri:noRegion>2020 Sidi Thabet</wicri:noRegion>
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<author><name sortKey="Mathlouthi, H" sort="Mathlouthi, H" uniqKey="Mathlouthi H" first="H." last="Mathlouthi">H. Mathlouthi</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Mécanique, Matériaux et Procédés, ESSTT, 5 Avenue Taha</s1>
<s2>Hussein 1008</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<wicri:noRegion>Hussein 1008</wicri:noRegion>
</affiliation>
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<author><name sortKey="Lamloumi, J" sort="Lamloumi, J" uniqKey="Lamloumi J" first="J." last="Lamloumi">Jilani Lamloumi</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Mécanique, Matériaux et Procédés, ESSTT, 5 Avenue Taha</s1>
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<author><name sortKey="Percheron Guegan, A" sort="Percheron Guegan, A" uniqKey="Percheron Guegan A" first="A." last="Percheron Guegan">A. Percheron Guegan</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratoire de Chimie Métallurgique des Terres Rares, GLVT, 2-8 Rue Henri Dunant</s1>
<s2>94320 Thiais</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Thiais</settlement>
</placeName>
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<series><title level="j" type="main">Journal of alloys and compounds</title>
<title level="j" type="abbreviated">J. alloys compd.</title>
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<imprint><date when="2006">2006</date>
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<seriesStmt><title level="j" type="main">Journal of alloys and compounds</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Charge transfer</term>
<term>Cyclic voltammetry</term>
<term>Diffusivity</term>
<term>Electrochemical properties</term>
<term>Hydrogen storage</term>
<term>Kinetics</term>
<term>Nickel alloy</term>
<term>Particle size</term>
<term>Rare earth metal alloy</term>
<term>Reversible processes</term>
<term>Transition metal alloy</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Diffusivité</term>
<term>Stockage hydrogène</term>
<term>Voltammétrie cyclique</term>
<term>Propriété électrochimique</term>
<term>Transfert charge</term>
<term>Processus réversible</term>
<term>Cinétique</term>
<term>Dimension particule</term>
<term>Lanthanide alliage</term>
<term>Nickel alliage</term>
<term>Métal transition alliage</term>
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<front><div type="abstract" xml:lang="en">The hydrogen storage alloy MmNi<sub>3.55</sub>
Mn<sub>0.4</sub>
Al<sub>0.3</sub>
Co<sub>0.6</sub>
Fe<sub>0.15</sub>
 was used as a negative electrode in Ni-MH accumulators. The chronopoten-tiometry, the cyclic voltammetry and the chronoamperometry were applied to characterize the electrochemical properties of this alloy. The obtained results showed that the maximum discharge capacity reaches its maximum of 266mAh/g after 16 cycles, and then decreases to 220 mAh/g after 40 charge-discharge cycles. The hydrogen diffusion behaviour in this alloy was characterized by a cyclic voltammetry after activation. The value of the hydrogen diffusion coefficient in the MmNi<sub>3.55</sub>
Mn<sub>0.4</sub>
Al<sub>0.3</sub>
Co<sub>0.6</sub>
Fe<sub>0.15</sub>
 compound is equal to 1.95 x 10<sup>-9</sup>
 cm<sup>2</sup>
 s<sup>-1</sup>
, and the value of the charge-transfer coefficient in this alloy is about 0.6. These results showed that compared to the LaNi<sub>5</sub>
 compound, this alloy has a better stability in the alkaline solution, a good reversibility and a good kinetic of the electrochemical reaction. The chronoamperometry shows that the average size of the particles concerned by the electrochemical reaction is about 12 μm.</div>
</front>
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</country>
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	Serveur d'exploration sur le nickel au Maghreb
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Investigation of the cycle stability and diffusivity of hydrogen in the MmNi3.55Mn0.4Al0.3Co0.6Fe0.15 compound

Investigation of the cycle stability and diffusivity of hydrogen in the MmNi3.55Mn0.4Al0.3Co0.6Fe0.15 compound

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