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2009 | 7 | 4 | 739-744
Tytuł artykułu

Rotating disk electrode study of electrocatalytic oxidation of ascorbate at Prussian blue modified electrode

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Electrooxidation of ascorbate has been studied with the use of a rotating disk electrode. The results obtained show an efficient electrocatalytic oxidation of ascorbate at the Prussian blue (PB) modified electrode to proceed in solutions of pH 5.5 and 7.3. Depending on solution pH, the onset potential for ascorbate electrooxidation at PB modified electrode appears shifted by 0.1–0.2 V to lower values, as compared to an unmodified glassy carbon electrode. Within the electrode potential window of 0.3 to 0.5 V vs. Ag/AgCl, and electrode rotation velocity of 50–2000 rpm, the catalytic current obeys Koutecky-Levich equation at a submillimolar ascorbate concentration. Kinetic current densities, obtained from the data treatment, are higher for a pH 5.5 solution, and also at higher electrode potential. [...]
Wydawca

Czasopismo
Rocznik
Tom
7
Numer
4
Strony
739-744
Opis fizyczny
Daty
wydano
2009-12-01
online
2009-10-06
Twórcy
  • Department of Organic Chemistry, Institute of Chemistry, LT-01108, Vilnius, Lithuania
  • Department of Organic Chemistry, Institute of Chemistry, LT-01108, Vilnius, Lithuania
Bibliografia
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  • [15] R. Naujikas, A. Malinauskas, F. Ivanauskas, J. Mathemat. Chem. 42, 1069 (2007) http://dx.doi.org/10.1007/s10910-006-9172-z[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0061-8
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