Redox equilibria in the In(III)-In(I)-In system in aqueous KBr solutions II. A rotating ring-disc electrode study
Identifieur interne : 000098 ( Main/Exploration ); précédent : 000097; suivant : 000099Redox equilibria in the In(III)-In(I)-In system in aqueous KBr solutions II. A rotating ring-disc electrode study
Auteurs : RBID : ISTEX:706_1995_Article_BF00816095.pdfEnglish descriptors
Abstract
The open-circuit behaviour of thick indium films formed onto gold by the electroreduction of In(III) has been investigated in acidified aqueous KBr solutions using the rotating ring-disc electrode technique. The spontaneous dissolution of indium metal immersed in the solution containing its own ions of higher valency yields In(I) ions. Information about the equilibrium and mechanism of the process studied was drawn from measurements of the limiting ring current and disc potential as a function of the electrode rotation rate. It was proved that the overall reaction 2In+In(III)⇄3In(I) occurs as a coupling of two electrochemical steps: In⇄In(I)+e−, and In(III)+2e−⇄In(I). The cathodic half-reaction is the rate-determining step, whereas the anodic half-reaction is reversible.
DOI: 10.1007/BF00816095
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<record><TEI><teiHeader><fileDesc><titleStmt><title>Redox equilibria in the In(III)-In(I)-In system in aqueous KBr solutions II. A rotating ring-disc electrode study</title><author><name>E. Malyszko</name><affiliation wicri:level="1"><mods:affiliation>Institute of Chemistry, Pedagogical University, PL-25020, Kielce, Poland</mods:affiliation><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Chemistry, Pedagogical University, PL-25020, Kielce</wicri:regionArea><wicri:noRegion>Kielce</wicri:noRegion></affiliation></author><author><name>J. Malyszko</name><affiliation wicri:level="1"><mods:affiliation>Institute of Chemistry, Pedagogical University, PL-25020, Kielce, Poland</mods:affiliation><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Chemistry, Pedagogical University, PL-25020, Kielce</wicri:regionArea><wicri:noRegion>Kielce</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="RBID">ISTEX:706_1995_Article_BF00816095.pdf</idno><date when="1995">1995</date><idno type="doi">10.1007/BF00816095</idno><idno type="wicri:Area/Main/Corpus">000952</idno><idno type="wicri:Area/Main/Curation">000952</idno><idno type="wicri:Area/Main/Exploration">000098</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bromide solutions</term><term>Indium(I)</term><term>Reproportionation</term><term>Rotating ring-disc electrode</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="eng">The open-circuit behaviour of thick indium films formed onto gold by the electroreduction of In(III) has been investigated in acidified aqueous KBr solutions using the rotating ring-disc electrode technique. The spontaneous dissolution of indium metal immersed in the solution containing its own ions of higher valency yields In(I) ions. Information about the equilibrium and mechanism of the process studied was drawn from measurements of the limiting ring current and disc potential as a function of the electrode rotation rate. It was proved that the overall reaction 2In+In(III)⇄3In(I) occurs as a coupling of two electrochemical steps: In⇄In(I)+e−, and In(III)+2e−⇄In(I). The cathodic half-reaction is the rate-determining step, whereas the anodic half-reaction is reversible.</div></front></TEI><mods xsi:schemaLocation="http://www.loc.gov/mods/v3 file:///applis/istex/home/loadistex/home/etc/xsd/mods.xsd" version="3.4" istexId="a7c4f7264c7391f414fde105b6aab6d440b3816b"><titleInfo lang="eng"><title>Redox equilibria in the In(III)-In(I)-In system in aqueous KBr solutions II. A rotating ring-disc electrode study</title></titleInfo><titleInfo lang="ger"><title>Das Redox-Gleichgewicht im In(III)-In(I)-In-System in wäßrigen KBr-Lösungen, 2. Mitt. Untersuchungen mit der rotierenden Ring-Scheiben-Elektrode</title></titleInfo><name type="personal"><namePart type="given">E.</namePart><namePart type="family">Malyszko</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Institute of Chemistry, Pedagogical University, PL-25020, Kielce, Poland</affiliation></name><name type="personal"><namePart type="given">J.</namePart><namePart type="family">Malyszko</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Institute of Chemistry, Pedagogical University, PL-25020, Kielce, Poland</affiliation></name><typeOfResource>text</typeOfResource><genre>Anorganische Und Physikalische Chemie</genre><genre>Original Paper</genre><originInfo><publisher>Springer-Verlag, Vienna</publisher><dateCreated encoding="w3cdtf">1994-04-08</dateCreated><dateCaptured encoding="w3cdtf">1994-11-21</dateCaptured><dateValid encoding="w3cdtf">2004-11-29</dateValid><copyrightDate encoding="w3cdtf">1995</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="eng">The open-circuit behaviour of thick indium films formed onto gold by the electroreduction of In(III) has been investigated in acidified aqueous KBr solutions using the rotating ring-disc electrode technique. The spontaneous dissolution of indium metal immersed in the solution containing its own ions of higher valency yields In(I) ions. Information about the equilibrium and mechanism of the process studied was drawn from measurements of the limiting ring current and disc potential as a function of the electrode rotation rate. It was proved that the overall reaction 2In+In(III)⇄3In(I) occurs as a coupling of two electrochemical steps: In⇄In(I)+e−, and In(III)+2e−⇄In(I). The cathodic half-reaction is the rate-determining step, whereas the anodic half-reaction is reversible.</abstract><abstract lang="ger">Die spontane Auflösung von Indium unter der Wirkung von eigenen lonen (In(III)) wurde in sauren bromidhaltigen Lösungen mit Hilfe der rotierenden Ring-Scheiben-Elektrode untersucht. Die Angaben über das Gleichgewicht und den Mechanismus des untersuchten Prozesses wurden auf Grund der Abhängigkeit der Grenzströme an der Ring-Elektrode und der Elektrodepotentiale der Scheiben-Elektrode von der Umdrehungsgeschwindigkeit erreicht. Aus den Messungen folgt, daß die Bruttoreaktion 2In+In(III)⇄3In(I) aus zwei überlagerten Durchtrittsreaktionen, In⇄In(I)+e− und In(III)+2e−⇄In(I), besteht. Die kathodische Reaktion ist geschwindigkeitsbestimmend, während die anodische Teilreaktion reversibel abläuft.</abstract><subject lang="eng"><genre>Keywords</genre><topic>Bromide solutions</topic><topic>Indium(I)</topic><topic>Reproportionation</topic><topic>Rotating ring-disc electrode</topic></subject><relatedItem type="series"><titleInfo type="abbreviated"><title>Monatsh Chem</title></titleInfo><titleInfo><title>Monatshefte für Chemie / Chemical Monthly</title><partNumber>Year: 1995</partNumber><partNumber>Volume: 126</partNumber><partNumber>Number: 3</partNumber></titleInfo><genre>Archive Journal</genre><originInfo><dateIssued encoding="w3cdtf">1995-03-01</dateIssued><copyrightDate encoding="w3cdtf">1995</copyrightDate></originInfo><subject usage="primary"><topic>Chemistry</topic><topic>Chemistry/Food Science, general</topic><topic>Analytical Chemistry</topic><topic>Inorganic Chemistry</topic><topic>Organic Chemistry</topic><topic>Physical Chemistry</topic><topic>Theoretical and Computational Chemistry</topic></subject><identifier type="issn">0026-9247</identifier><identifier type="issn">Electronic: 1434-4475</identifier><identifier type="matrixNumber">706</identifier><identifier type="local">IssueArticleCount: 17</identifier><recordInfo><recordOrigin>Springer-Verlag, 1995</recordOrigin></recordInfo></relatedItem><identifier type="doi">10.1007/BF00816095</identifier><identifier type="matrixNumber">Art5</identifier><identifier type="local">BF00816095</identifier><accessCondition type="use and reproduction">MetadataGrant: OpenAccess</accessCondition><accessCondition type="use and reproduction">AbstractGrant: OpenAccess</accessCondition><accessCondition type="restriction on access">BodyPDFGrant: Restricted</accessCondition><accessCondition type="restriction on access">BodyHTMLGrant: Restricted</accessCondition><accessCondition type="restriction on access">BibliographyGrant: Restricted</accessCondition><accessCondition type="restriction on access">ESMGrant: Restricted</accessCondition><part><extent unit="pages"><start>271</start><end>279</end></extent></part><recordInfo><recordOrigin>Springer-Verlag, 1995</recordOrigin><recordIdentifier>706_1995_Article_BF00816095.pdf</recordIdentifier></recordInfo></mods></record>Pour manipuler ce document sous Unix (Dilib)
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