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Electrochemical impedance spectroscopy study of the metal hydride alloy/electrolyte junction

Identifieur interne : 000269 ( PascalFrancis/Curation ); précédent : 000268; suivant : 000270

Electrochemical impedance spectroscopy study of the metal hydride alloy/electrolyte junction

Auteurs : Chokri Khaldi [Tunisie] ; Hamadi Mathlouthi [Tunisie] ; Jilani Lamloumi [Tunisie]

Source :

RBID : Pascal:10-0027721

Descripteurs français

English descriptors

Abstract

The behaviour of the LaNi3.55Mn0.4Al0.3Co0.75 alloy, used as a negative electrode in the Ni-MH batteries, was studied by the electrochemical impedance spectroscopy (EIS), measured at different potentials. The modeling of the EIS spectra allows us to model the interface electrolyte/Ni-MH electrode by a succession of interfaces electrolyte/corrosion film/alloy particles. The various processes and the physics parameters of each interface are discussed and evaluated. When the potential shifts to more negative values, two reactions are in competition: the hydrogen molecular evolution and the hydrogen atomic absorption. The hydrogen diffuses in the bulk of the alloy and the diffusion is not the limiting factor for the hydrogen absorption.
pA  
A01 01  1    @0 0925-8388
A03   1    @0 J. alloys compd.
A05       @2 479
A06       @2 1-2
A08 01  1  ENG  @1 Electrochemical impedance spectroscopy study of the metal hydride alloy/electrolyte junction
A11 01  1    @1 KHALDI (Chokri)
A11 02  1    @1 MATHLOUTHI (Hamadi)
A11 03  1    @1 LAMLOUMI (Jilani)
A14 01      @1 Laboratoire de Mécanique, Matériaux et Procédés, ESSTT, 5 Avenue Taha Hussein @2 1008 Tunis @3 TUN @Z 1 aut. @Z 2 aut. @Z 3 aut.
A20       @1 284-289
A21       @1 2009
A23 01      @0 ENG
A43 01      @1 INIST @2 1151 @5 354000188235430710
A44       @0 0000 @1 © 2010 INIST-CNRS. All rights reserved.
A45       @0 24 ref.
A47 01  1    @0 10-0027721
A60       @1 P
A61       @0 A
A64 01  1    @0 Journal of alloys and compounds
A66 01      @0 CHE
C01 01    ENG  @0 The behaviour of the LaNi3.55Mn0.4Al0.3Co0.75 alloy, used as a negative electrode in the Ni-MH batteries, was studied by the electrochemical impedance spectroscopy (EIS), measured at different potentials. The modeling of the EIS spectra allows us to model the interface electrolyte/Ni-MH electrode by a succession of interfaces electrolyte/corrosion film/alloy particles. The various processes and the physics parameters of each interface are discussed and evaluated. When the potential shifts to more negative values, two reactions are in competition: the hydrogen molecular evolution and the hydrogen atomic absorption. The hydrogen diffuses in the bulk of the alloy and the diffusion is not the limiting factor for the hydrogen absorption.
C02 01  X    @0 001D06D05
C02 02  X    @0 230
C03 01  X  FRE  @0 Modélisation @5 03
C03 01  X  ENG  @0 Modeling @5 03
C03 01  X  SPA  @0 Modelización @5 03
C03 02  X  FRE  @0 Propriété électrochimique @5 04
C03 02  X  ENG  @0 Electrochemical properties @5 04
C03 02  X  SPA  @0 Propiedad electroquímica @5 04
C03 03  X  FRE  @0 Corrosion @5 05
C03 03  X  ENG  @0 Corrosion @5 05
C03 03  X  SPA  @0 Corrosión @5 05
C03 04  X  FRE  @0 Schéma équivalent @5 06
C03 04  X  ENG  @0 Equivalent circuit @5 06
C03 04  X  SPA  @0 Esquema equivalente @5 06
C03 05  X  FRE  @0 Facteur limitant @5 07
C03 05  X  ENG  @0 Limiting factor @5 07
C03 05  X  SPA  @0 Factor limitante @5 07
C03 06  X  FRE  @0 Voltammétrie cyclique @5 08
C03 06  X  ENG  @0 Cyclic voltammetry @5 08
C03 06  X  SPA  @0 Voltametría cíclica @5 08
C03 07  X  FRE  @0 Interface électrode électrolyte @5 09
C03 07  X  ENG  @0 Electrode electrolyte interface @5 09
C03 07  X  SPA  @0 Interfase electrodo electrolito @5 09
C03 08  3  FRE  @0 Batterie lithium @5 11
C03 08  3  ENG  @0 Lithium battery @5 11
C03 09  X  FRE  @0 Impédance électrode @5 12
C03 09  X  ENG  @0 Electrode impedance @5 12
C03 09  X  SPA  @0 Impedancia electrodo @5 12
C03 10  X  FRE  @0 Absorption @5 13
C03 10  X  ENG  @0 Absorption @5 13
C03 10  X  SPA  @0 Absorción @5 13
C03 11  X  FRE  @0 Diagramme Nyquist @5 14
C03 11  X  ENG  @0 Nyquist diagram @5 14
C03 11  X  SPA  @0 Diagrama Nyquist @5 14
C03 12  X  FRE  @0 Hydrure @2 NA @5 15
C03 12  X  ENG  @0 Hydrides @2 NA @5 15
C03 12  X  SPA  @0 Hidruro @2 NA @5 15
C03 13  X  FRE  @0 Nickel @2 NC @2 FX @5 16
C03 13  X  ENG  @0 Nickel @2 NC @2 FX @5 16
C03 13  X  SPA  @0 Niquel @2 NC @2 FX @5 16
N21       @1 018

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Pascal:10-0027721

Le document en format XML

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<term>Electrode impedance</term>
<term>Equivalent circuit</term>
<term>Hydrides</term>
<term>Limiting factor</term>
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<div type="abstract" xml:lang="en">The behaviour of the LaNi
<sub>3.55</sub>
Mn
<sub>0.4</sub>
Al
<sub>0.3</sub>
Co
<sub>0.75</sub>
alloy, used as a negative electrode in the Ni-MH batteries, was studied by the electrochemical impedance spectroscopy (EIS), measured at different potentials. The modeling of the EIS spectra allows us to model the interface electrolyte/Ni-MH electrode by a succession of interfaces electrolyte/corrosion film/alloy particles. The various processes and the physics parameters of each interface are discussed and evaluated. When the potential shifts to more negative values, two reactions are in competition: the hydrogen molecular evolution and the hydrogen atomic absorption. The hydrogen diffuses in the bulk of the alloy and the diffusion is not the limiting factor for the hydrogen absorption.</div>
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<fC01 i1="01" l="ENG">
<s0>The behaviour of the LaNi
<sub>3.55</sub>
Mn
<sub>0.4</sub>
Al
<sub>0.3</sub>
Co
<sub>0.75</sub>
alloy, used as a negative electrode in the Ni-MH batteries, was studied by the electrochemical impedance spectroscopy (EIS), measured at different potentials. The modeling of the EIS spectra allows us to model the interface electrolyte/Ni-MH electrode by a succession of interfaces electrolyte/corrosion film/alloy particles. The various processes and the physics parameters of each interface are discussed and evaluated. When the potential shifts to more negative values, two reactions are in competition: the hydrogen molecular evolution and the hydrogen atomic absorption. The hydrogen diffuses in the bulk of the alloy and the diffusion is not the limiting factor for the hydrogen absorption.</s0>
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<s5>05</s5>
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<s5>05</s5>
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<s0>Corrosión</s0>
<s5>05</s5>
</fC03>
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<s0>Schéma équivalent</s0>
<s5>06</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG">
<s0>Equivalent circuit</s0>
<s5>06</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA">
<s0>Esquema equivalente</s0>
<s5>06</s5>
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<s0>Facteur limitant</s0>
<s5>07</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG">
<s0>Limiting factor</s0>
<s5>07</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA">
<s0>Factor limitante</s0>
<s5>07</s5>
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<s5>08</s5>
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<fC03 i1="06" i2="X" l="ENG">
<s0>Cyclic voltammetry</s0>
<s5>08</s5>
</fC03>
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<s5>08</s5>
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<s5>09</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG">
<s0>Electrode electrolyte interface</s0>
<s5>09</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA">
<s0>Interfase electrodo electrolito</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE">
<s0>Batterie lithium</s0>
<s5>11</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG">
<s0>Lithium battery</s0>
<s5>11</s5>
</fC03>
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<s0>Impédance électrode</s0>
<s5>12</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG">
<s0>Electrode impedance</s0>
<s5>12</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA">
<s0>Impedancia electrodo</s0>
<s5>12</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE">
<s0>Absorption</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG">
<s0>Absorption</s0>
<s5>13</s5>
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<s5>13</s5>
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<s0>Diagramme Nyquist</s0>
<s5>14</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Nyquist diagram</s0>
<s5>14</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Diagrama Nyquist</s0>
<s5>14</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE">
<s0>Hydrure</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG">
<s0>Hydrides</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA">
<s0>Hidruro</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE">
<s0>Nickel</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG">
<s0>Nickel</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA">
<s0>Niquel</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>16</s5>
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<fN21>
<s1>018</s1>
</fN21>
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