J. Iniesta et al., Electrochemical oxidation of 3-methylpyridine at a boron-doped diamond electrode: application to electroorganic synthesis and wastewater treatment, ELECTROCH C, 3(7), 2001, pp. 346-351
The electrochemical oxidation of 3-methylpyridine (3-MP) at synthetic boron
-doped diamond (BDD) thin film electrode has been studied in acid media by
cyclic voltammetry and bulk electrolysis. The results have shown that in th
e potential region of water stability there can occur direct electron trans
fer reactions on BDD surface that result in electrode fouling due to the fo
rmation of a polymeric film on its surface. While during electrolyses in th
e potential region of water decomposition, indirect oxidation reactions can
take place by electrogenerated active intermediates, probably hydroxyl rad
icals that can avoid electrode fouling. Depending on the values of applied
current density, it is possible to obtain the partial oxidation of 3-MP to
nicotinic acid or the complete combustion of 3-MP to CO2. (C) 2001 Elsevier
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