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Journal
2009 | 7 | 4 | 739-744
Article title

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

Content
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EN
Abstracts
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. [...]
Publisher

Journal
Year
Volume
7
Issue
4
Pages
739-744
Physical description
Dates
published
1 - 12 - 2009
online
6 - 10 - 2009
Contributors
  • Department of Organic Chemistry, Institute of Chemistry, LT-01108, Vilnius, Lithuania
  • Department of Organic Chemistry, Institute of Chemistry, LT-01108, Vilnius, Lithuania
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0061-8
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