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Article: Electrocatalytic oxidation of benzyl alcohol with a monooxoruthenium(V) complex in solution and inside Nafion films

TitleElectrocatalytic oxidation of benzyl alcohol with a monooxoruthenium(V) complex in solution and inside Nafion films
Authors
KeywordsAlcohol Oxidation
Nafion Films
Ruthenium Catalyst
Issue Date1992
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/electacta
Citation
Electrochimica Acta, 1992, v. 37 n. 14, p. 2645-2650 How to Cite?
AbstractThe monooxoruthenium(V) complex [Ruv(L)(O)]2+ (LH = bis(2-(2-pyridyl)ethyl) (2-hydroxy-2-(2-pyridyl)ethyl)amine) is an active catalyst for the electrooxidation of benzyl alcohol in solution. The second order rate constant for the reaction between [Ruv(L)(O)]2+ and benzyl alcohol evaluated by rotating disc voltammetry is 1.7 × 102mol-1 dm3s-1. The activity of the catalyst is retained when immobilized inside Nafion films. However, in aqueous acidic medium the oxidation of [RuIII(L)(H2O)]2+ to [Ruv(L)(O)]2+ is kinetically slow within Nafion. When the pH of the medium is raised from acidic to neutral, oxidation of the complex inside Nafion becomes more facile and the activity of the modified electrode towards alcohol oxidation increases. The partitioning of the catalyst in different phases of the Nafion film appears to depend on pH, with part of the immobilized complexes staying in an "electroinactive" region in neutral supporting electrolytes. The catalyst gradually becomes deactivated during the course of alcohol oxidation. © 1992.
Persistent Identifierhttp://hdl.handle.net/10722/167262
ISSN
2015 Impact Factor: 4.803
2015 SCImago Journal Rankings: 1.391

 

DC FieldValueLanguage
dc.contributor.authorWong, KYen_US
dc.contributor.authorYam, VWWen_US
dc.contributor.authorLee, WWSen_US
dc.date.accessioned2012-10-08T03:04:58Z-
dc.date.available2012-10-08T03:04:58Z-
dc.date.issued1992en_US
dc.identifier.citationElectrochimica Acta, 1992, v. 37 n. 14, p. 2645-2650en_US
dc.identifier.issn0013-4686en_US
dc.identifier.urihttp://hdl.handle.net/10722/167262-
dc.description.abstractThe monooxoruthenium(V) complex [Ruv(L)(O)]2+ (LH = bis(2-(2-pyridyl)ethyl) (2-hydroxy-2-(2-pyridyl)ethyl)amine) is an active catalyst for the electrooxidation of benzyl alcohol in solution. The second order rate constant for the reaction between [Ruv(L)(O)]2+ and benzyl alcohol evaluated by rotating disc voltammetry is 1.7 × 102mol-1 dm3s-1. The activity of the catalyst is retained when immobilized inside Nafion films. However, in aqueous acidic medium the oxidation of [RuIII(L)(H2O)]2+ to [Ruv(L)(O)]2+ is kinetically slow within Nafion. When the pH of the medium is raised from acidic to neutral, oxidation of the complex inside Nafion becomes more facile and the activity of the modified electrode towards alcohol oxidation increases. The partitioning of the catalyst in different phases of the Nafion film appears to depend on pH, with part of the immobilized complexes staying in an "electroinactive" region in neutral supporting electrolytes. The catalyst gradually becomes deactivated during the course of alcohol oxidation. © 1992.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/electactaen_US
dc.relation.ispartofElectrochimica Actaen_US
dc.subjectAlcohol Oxidationen_US
dc.subjectNafion Filmsen_US
dc.subjectRuthenium Catalysten_US
dc.titleElectrocatalytic oxidation of benzyl alcohol with a monooxoruthenium(V) complex in solution and inside Nafion filmsen_US
dc.typeArticleen_US
dc.identifier.emailYam, VWW:wwyam@hku.hken_US
dc.identifier.authorityYam, VWW=rp00822en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0000289445en_US
dc.identifier.volume37en_US
dc.identifier.issue14en_US
dc.identifier.spage2645en_US
dc.identifier.epage2650en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridWong, KY=7404760030en_US
dc.identifier.scopusauthoridYam, VWW=18539304700en_US
dc.identifier.scopusauthoridLee, WWS=7407088330en_US

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