DC FieldValueLanguage
dc.contributorDepartment of Applied Biology and Chemical Technologyen_US
dc.creatorTsang, CSen_US
dc.creatorLee, LYSen_US
dc.creatorCheung, KCen_US
dc.creatorChan, PHen_US
dc.creatorWong, WLen_US
dc.creatorWong, KYen_US
dc.date.accessioned2021-09-23T03:33:23Z-
dc.date.available2021-09-23T03:33:23Z-
dc.identifier.issn2196-0216en_US
dc.identifier.urihttp://hdl.handle.net/10397/91198-
dc.language.isoenen_US
dc.publisherWiley-VCHen_US
dc.subjectCoordination chemistryen_US
dc.subjectElectrocatalysisen_US
dc.subjectPyridyl liganden_US
dc.subjectRuthenium(IV)-oxo complexesen_US
dc.subjectWater oxidationen_US
dc.titleUnexpected promotional effects of alkyl-tailed ligands and anions on the electrochemical generation of ruthenium(IV)-oxo complexesen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationTitle on author’s file: Electrochemical generation of ruthenium (IV)–oxo complexes : an unexpected promotion effects from the alkyl-tailed ligand and anionsen_US
dc.identifier.spage2221en_US
dc.identifier.epage2230en_US
dc.identifier.volume8en_US
dc.identifier.issue12en_US
dc.identifier.doi10.1002/celc.202100364en_US
dcterms.abstractElectro-generation of RuIV=O species from the RuII-aqua complex is a crucial step to excel the electrocatalytic water oxidation performance of ruthenium oxo complexes. We report herein the synthesis and X-ray crystal structural characterizations of new RuII-aqua complexes containing N-substituted 2,2′-dipyridylamine ligands (L) tagged with an alkyl chain of various lengths, [Ru(tpy)(L)(OH2)]2+. Cyclic voltammetric analyses show that the length of the alkyl chain exerts great influence on the electro-generation of RuIV=O species. The L with a longer alkyl chain in an acidic aqueous medium promotes the conversion of RuIII−OH to RuIV=O efficiently. Surprisingly, this conversion can be further enhanced by the presence of perchlorate anions. Chronocoulometric data reveal that the alkyl chain on L promotes the adsorption of the ruthenium complex on the electrode surface. Bulk electrolysis results indicate that the [Ru(tpy)(dppa)(OH2)]2+ (dppa=(2,2′-dipyridyl)-n-propylamine) gives the most active electrocatalytic water oxidation activity among the ruthenium-aqua complexes investigated in this study.en_US
dcterms.accessRightsembargoed accessen_US
dcterms.bibliographicCitationChemElectroChem, 14 June 2021, v. 8, no. 12, p. 2221-2230en_US
dcterms.isPartOfChemElectroChemen_US
dcterms.issued2021-06-14-
dc.identifier.scopus2-s2.0-85105963089-
dc.description.validate202109 bchyen_US
dc.description.oaNot applicableen_US
dc.identifier.FolderNumbera1032-n01-
dc.identifier.SubFormID2454-
dc.description.fundingSourceOthersen_US
dc.description.fundingTextThe Innovation and Technology Commission and The Hong Kong Polytechnic Universityen_US
dc.description.pubStatusPublisheden_US
dc.date.embargo2022.06.13en_US
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