The kinetics of the electrochemical oxidation of NO,-ion dissolved in DMSO has been studied on Pt electrodes at temperature ranging from 25 to 44'C, by means of potentiostatic E/Icurves and by relaxation techniques. The oxidation reaction is explained in terms of a consecutive reaction scheme which
The electrochemical oxidation of nitrite dissolved in dimethylsulphoxide on platinum electrodes
✍ Scribed by J.A. Wargon; A.J. Arvía
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 521 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
The electrochemical oxidation of nitrite ion dissolved as sodium nitrite in dimethylsulphoxide on a rotating platinum disk electrode, in the temperature range 2544°C is reported. Main reaction products are NO*. NO, NiO. and dimethylsulphone. The anodic E/I curve shows a limiting current which is directly proportional to the nitrite-ion concentration. The anodic reaction under convectiveusion control is studied in this work. R6sun&-On a rapport6 l'oxidation Clectrochimique de l'ion nitrite dissous comme nitrite de sodium darts le dimethylsulfoxyde, aver une electrode a disque toumant de platine, B des temperatures de 25 a 44°C. Lea principaux produits de &action sont NO*, NO, N.Ot et dim&hylsulfone. La courbe anodique E/I montre un courant limite qui est directement proportionel B la concentration de l'ion nitrite. La r&&ion anodique sous contrBle convetif-difusional a aussi et6 btudibe dans ce travail. Zusammenbsung-Es. wird iiber die elektrochemische Oxydation von Nitritionen, geliist als Natriumnitrit in Dimethylsulfoxid, an einer rotierenden Platin-Scheibenelektrode im Temperaturbereich von 2544°C berichtet. Die Hauptreaktionsprodukte sind NO*, NO, NIOs und Dimethylsulfon. Die anodische E/I-Kurve zeigt einen Grenzstrom, der der Nitritionenkonzentration direkt proportional ist. Femer wird in dieser Arbeit die anodische Reaktion unter konvektiver Diffusionskontrolle untersucht.
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