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dc.contributor.authorYao, Huiqin
dc.contributor.authorLiu, Ben
dc.contributor.authorMosa, Islam M.
dc.contributor.authorBist, Itti
dc.contributor.authorHe, Jie
dc.contributor.authorRusling, James F.
dc.date.accessioned2018-09-20T16:28:48Z
dc.date.available2018-09-20T16:28:48Z
dc.date.issued2016-07-20
dc.identifier.citationYao, Huiqin; Liu, Ben; Mosa, Islam M. Bist, Itti; He, Jie; Rusling, James F. (2016). Electrocatalytic oxidation of alcohols, tripropylamine, and dna with ligand-free gold nanoclusters on nitrided carbon. ChemElectroChem 3 (12), 2100-2109
dc.identifier.issn2196-0216
dc.identifier.urihttp://hdl.handle.net/10379/14487
dc.description.abstractElectrocatalytic properties of ligand-free gold nanoclusters (AuNCs, <2nm) grown on nitrided carbon supports (denoted as AuNCs@N-C) were evaluated for the oxidation of representative organic molecules including alcohols, an amine, and deoxyguanosine in oligonucleotides. AuNCs@N-C catalysts were incorporated into films of architecture {PDDA/AuNCs@N-C}(n) by using layer-by-layer assembly with oppositely charged poly(diallyldimethylammonium) (PDDA) on pyrolytic graphite (PG) electrodes. Cyclic voltammetry and electrochemical impedance spectroscopy (EIS) were used to survey the electrocatalytic properties of these AuNCs@N-C films. Ligand-free AuNCs in these films demonstrated excellent electrocatalytic oxidation activity with maximum peak currents and the lowest potentials for oxidizing ethanol, propanol, and tripropylamine (TprA) compared to controls with Au-surface capping agents or to larger sized Au nanocrystals on the nitrided carbon supports. EIS kinetic studies showed that ligand-free AuNCs films have the smallest charge-transfer resistance, largest electrochemically active surface area, and largest apparent standard rate constants, as compared to the control films for all compounds examined. DNA films on AuNCs@N-C were oxidized at deoxyguanosine moieties with good catalytic activity that depended on charge transport within the films.
dc.publisherWiley-Blackwell
dc.relation.ispartofChemElectroChem
dc.subjectalcohol
dc.subjectDNA
dc.subjectelectrocatalytic oxidation
dc.subjectgold nanoclusters
dc.subjecttripropylamine
dc.subjectalkaline media
dc.subjectcatalytic-activity
dc.subjectelectrogenerated chemiluminescence
dc.subjectelectrochemical impedance
dc.subjectethanol electrooxidation
dc.subjectmethanol oxidation
dc.subjectco oxidation
dc.subjectfuel-cells
dc.subjectnanoparticles
dc.subjectsize
dc.titleElectrocatalytic oxidation of alcohols, tripropylamine, and dna with ligand-free gold nanoclusters on nitrided carbon
dc.typeArticle
dc.identifier.doi10.1002/celc.201600283
dc.local.publishedsourcehttp://europepmc.org/articles/pmc5422001?pdf=render
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