Nitrite oxidation on RuO2 electrodes (Articolo in rivista)

Type
Label
  • Nitrite oxidation on RuO2 electrodes (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Amadelli R., De Battisti A., Doubova L., Velichenko A.B. (2008)
    Nitrite oxidation on RuO2 electrodes
    in Russian journal of electrochemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Amadelli R., De Battisti A., Doubova L., Velichenko A.B. (literal)
Pagina inizio
  • 131 (literal)
Pagina fine
  • 137 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 44 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Ferrara, ISOF, CNR, Sez Ferrara, I-35127 Padua, Italy Univ Ferrara, Dipartimento Chim, I-35127 Padua, Italy IENI, CNR, I-35127 Padua, Italy Ukrainian State Chem Technol Univ, Dept Phys Chem, UA-320005 Dnepropetrovsk, Ukraine (literal)
Titolo
  • Nitrite oxidation on RuO2 electrodes (literal)
Abstract
  • An electrochemical kinetic investigation of nitrite oxidation to nitrate on RuO2 is discussed. The process is studied by cyclic voltammetry, steady-state measurements and potential step measurements. The overall oxidation reaction is a two-electron process where the first step involves a reversible charge transfer: NO2- double left right arrow NO2 + e(-) The one-electron oxidation of nitrite yields adsorbed NO2 which is further oxidized to adsorbed (NO2)(+) and subsequently desorbed via a chemical reaction. In the general case, fit of experimental data is obtained with adsorption described by a Temkin isotherm unless the electrode is pre-treated at a cathodic potential where the (NO2)(ads) is removed. This treatment lowers the degree of coverage by intermediates but not the nature of the slow step. (literal)
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