β Scribed by M. Colombi; G. Fiori; L. Formaro
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Various authors 1-3 suggest that nitrate radicals can play an important role as intermediates in the electrochemical oxidation of aromatic hydrocarbons. The direct oxidation of NO 3 ions in non-aqueous solvents has been examined by other authors 4-6 and two different pathways have been proposed: scheme 14 and 115:
Scheme II NO~ ~NO~-+ 2e+Β½02
Prior to an investigation about the electrochemical oxidation of olefins in acetic acid, with various supporting electrolytes including LiNO37, we carried out a determination of the kinetic electrochemical parameters concerning the behaviour of the nitrate ions in anhydrous acetic acid.
EXPERIMENTAL
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The oxidation processes of cyanide and cyanate ions on a Pt electrode in aqueous and methanol solutions were studied by infrared spectroscopy. In aqueous solution, the cyanide ion was oxidized to cyanate and successively to carbon dioxide. The reaction proceeded on an oxidized platinum surface. In m
The E/I curve related to the electrochemical oxidation of iodide dissolved in molten nitrates on a platinum rotating disk electrode involves two anodic waves. The Srst corresponds to a reversible two-electron process and the second to a reversible one-electron process. A definite ratio between the a
The nitrate ion oxidation at platinum electrodes from AgNO, in acetonitrile soIutions has been studied under a wide range of experimental conditions. LiCIOL O-4 M was used as supporting electrolyte. Coulommetry, steady state polarization curves in unstirred solutions, rotating disk electrode and chr