Electrocatalytic dioxygen reduction in the presence of a rhodoxime (Articolo in rivista)

Type
Label
  • Electrocatalytic dioxygen reduction in the presence of a rhodoxime (Articolo in rivista) (literal)
Anno
  • 1998-01-01T00:00:00+01:00 (literal)
Alternative label
  • Tavagnacco C.; Moszner M.; Cozzi S.; Peressini S.; Costa G. (1998)
    Electrocatalytic dioxygen reduction in the presence of a rhodoxime
    in Journal of electroanalytical chemistry and interfacial electrochemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tavagnacco C.; Moszner M.; Cozzi S.; Peressini S.; Costa G. (literal)
Pagina inizio
  • 41 (literal)
Pagina fine
  • 50 (literal)
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  • http://www.scopus.com/inward/record.url?eid=2-s2.0-0032485713&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 448 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
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  • 1 (literal)
Note
  • Scopu (literal)
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  • Department of Chemical Sciences, University of Trieste, Via L. Giorgieri, 1, 34127, Trieste, Italy; Faculty of Chemistry, University of Wroclaw, 14 F.Joliot-Curie Str., 50383, Wroclaw, Poland (literal)
Titolo
  • Electrocatalytic dioxygen reduction in the presence of a rhodoxime (literal)
Abstract
  • Polarographic and voltammetric evidences are reported for the production of intermediates superoxo [Rh]OO and hydroperoxo [Rh]OOH derivatives at the electrode surface, in the reduction of dioxygen in the presence of rhodium bis(dimethylglyoximato) chloro triphenylphosphine, [ClRh(III)(DMG)2(PPh3)] (I), in the absence and in the presence of protons in non-aqueous solvents. In the latter case the electrocatalytic reduction of dioxygen is observed. From the trends of the concentrations of dioxygen vs the rhodium complexes, a mechanism for the electrochemical process is proposed. The molar ratio of dioxygen to the rhodium complex when the latter is completely consumed for the formation of the adduct, as compared with the 1:1 stoichiometric ratio determined by the Hill plot, together with the influence of the electrode material, suggests that the reduction of dioxygen involves adsorbed species. (literal)
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