Electrochemical oxidation of 3-methylpyridine at a boron-doped diamond electrode: application to electroorganic synthesis and wastewater treatment |
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| Institution: | 1. Department of Chemistry, Faculty of Arts and Sciences, Kütahya Dumlup?nar University, Kütahya 43100, Türkiye;2. Department of Food Engineering, Department of Agricultural Engineering, Eski?ehir Osmangazi University, Eski?ehir 26000, Türkiye;3. Department of Physics Education, Gazi University, Ankara 06500, Türkiye;1. Van Yuzuncu Yil University, Faculty of Pharmacy, Department of Analytical Chemistry, 65080 Van, Turkey;2. Van Yuzuncu Yil University, Faculty of Science, Department of Analytical Chemistry, 65080 Van, Turkey |
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| Abstract: | 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 the potential region of water stability there can occur direct electron transfer reactions on BDD surface that result in electrode fouling due to the formation of a polymeric film on its surface. While during electrolyses in the potential region of water decomposition, indirect oxidation reactions can take place by electrogenerated active intermediates, probably hydroxyl radicals 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. |
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