Model of nickel electrodeposition from acidic medium
Identifieur interne : 000416 ( France/Analysis ); précédent : 000415; suivant : 000417Model of nickel electrodeposition from acidic medium
Auteurs : F. Lantelme [France] ; A. Seghiouer [France] ; A. Derja [Maroc]Source :
- Journal of applied electrochemistry [ 0021-891X ] ; 1998.
Descripteurs français
- Pascal (Inist)
- Etude expérimentale, Modélisation, Réaction électrochimique, Dépôt électrolytique, Codépôt, Nickel, Nickel II Hydroxyde, Electrode disque tournant, Carbone, Etat vitreux, Effet milieu, pH, Chronoampérométrie, Structure surface, Microscopie électronique balayage, Morphologie, Solution aqueuse, Solution acide.
- Wicri :
English descriptors
- KwdEn :
Abstract
A step-wise computer model is presented for simultaneous deposition of nickel and nickel hydroxide in aqueous solutions. In acidic solutions (pH ≃ 1), the potentiostatic current-time transient response on glassy carbon or titanium was analysed with respect to nucleation and radial growth mechanism. pH changes influence the current-time response greatly. A marked maximum in the current transient appears for slightly acidic solutions (pH > 4.5) and a consecutive decrease in the deposition current density at long times is obtained. This behaviour is attributed to early precipitation of nickel hydroxide due to a local pH increase at the cathode surface.
Affiliations:
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Pascal:99-0047431Le document en format XML
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Seghiouer</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire d'Electrochimie, Case 51, Université Pierre et Marie Curie, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Paris</settlement></placeName><orgName type="university">Université Pierre-et-Marie-Curie</orgName></affiliation></author><author><name sortKey="Derja, A" sort="Derja, A" uniqKey="Derja A" first="A." last="Derja">A. Derja</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire d'Electrochimie, Faculté des Sciences, Université Cadi Ayyad, B.P.S 15</s1><s2>Marrakesh</s2><s3>MAR</s3><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Marrakesh</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">99-0047431</idno><date when="1998">1998</date><idno type="stanalyst">PASCAL 99-0047431 INIST</idno><idno type="RBID">Pascal:99-0047431</idno><idno type="wicri:Area/PascalFrancis/Corpus">000472</idno><idno type="wicri:Area/PascalFrancis/Curation">000595</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000487</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000487</idno><idno type="wicri:doubleKey">0021-891X:1998:Lantelme F:model:of:nickel</idno><idno type="wicri:Area/Main/Merge">000D86</idno><idno type="wicri:Area/Main/Curation">000D40</idno><idno type="wicri:Area/Main/Exploration">000D40</idno><idno type="wicri:Area/France/Extraction">000416</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Model of nickel electrodeposition from acidic medium</title><author><name sortKey="Lantelme, F" sort="Lantelme, F" uniqKey="Lantelme F" first="F." last="Lantelme">F. Lantelme</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire d'Electrochimie, Case 51, Université Pierre et Marie Curie, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Paris</settlement></placeName><orgName type="university">Université Pierre-et-Marie-Curie</orgName></affiliation></author><author><name sortKey="Seghiouer, A" sort="Seghiouer, A" uniqKey="Seghiouer A" first="A." last="Seghiouer">A. Seghiouer</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire d'Electrochimie, Case 51, Université Pierre et Marie Curie, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Paris</settlement></placeName><orgName type="university">Université Pierre-et-Marie-Curie</orgName></affiliation></author><author><name sortKey="Derja, A" sort="Derja, A" uniqKey="Derja A" first="A." last="Derja">A. Derja</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire d'Electrochimie, Faculté des Sciences, Université Cadi Ayyad, B.P.S 15</s1><s2>Marrakesh</s2><s3>MAR</s3><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Marrakesh</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of applied electrochemistry</title><title level="j" type="abbreviated">J. appl. electrochem.</title><idno type="ISSN">0021-891X</idno><imprint><date when="1998">1998</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of applied electrochemistry</title><title level="j" type="abbreviated">J. appl. electrochem.</title><idno type="ISSN">0021-891X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acidic solution</term><term>Aqueous solution</term><term>Carbon</term><term>Chronoamperometry</term><term>Codeposition</term><term>Electrochemical reaction</term><term>Electrodeposition</term><term>Experimental study</term><term>Glassy state</term><term>Medium effect</term><term>Modeling</term><term>Morphology</term><term>Nickel</term><term>Nickel II Hydroxides</term><term>Rotating disk electrode</term><term>Scanning electron microscopy</term><term>Surface structure</term><term>pH</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Modélisation</term><term>Réaction électrochimique</term><term>Dépôt électrolytique</term><term>Codépôt</term><term>Nickel</term><term>Nickel II Hydroxyde</term><term>Electrode disque tournant</term><term>Carbone</term><term>Etat vitreux</term><term>Effet milieu</term><term>pH</term><term>Chronoampérométrie</term><term>Structure surface</term><term>Microscopie électronique balayage</term><term>Morphologie</term><term>Solution aqueuse</term><term>Solution acide</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Nickel</term><term>Carbone</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A step-wise computer model is presented for simultaneous deposition of nickel and nickel hydroxide in aqueous solutions. In acidic solutions (pH ≃ 1), the potentiostatic current-time transient response on glassy carbon or titanium was analysed with respect to nucleation and radial growth mechanism. pH changes influence the current-time response greatly. A marked maximum in the current transient appears for slightly acidic solutions (pH > 4.5) and a consecutive decrease in the deposition current density at long times is obtained. This behaviour is attributed to early precipitation of nickel hydroxide due to a local pH increase at the cathode surface.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Île-de-France</li></region><settlement><li>Paris</li></settlement><orgName><li>Université Pierre-et-Marie-Curie</li></orgName></list><tree><country name="France"><region name="Île-de-France"><name sortKey="Lantelme, F" sort="Lantelme, F" uniqKey="Lantelme F" first="F." last="Lantelme">F. Lantelme</name></region><name sortKey="Seghiouer, A" sort="Seghiouer, A" uniqKey="Seghiouer A" first="A." last="Seghiouer">A. Seghiouer</name></country><country name="Maroc"><noRegion><name sortKey="Derja, A" sort="Derja, A" uniqKey="Derja A" first="A." last="Derja">A. Derja</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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