Electrocatalytic Activity of Macroheterocyclic Complexes in the Molecular Oxygen Electroreduction: A Cyclic Voltammetry Estimate |
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Authors: | Bazanov M. I. Petrov A. V. Zhutaeva G. V. Turchaninova I. V. Andrievski G. Evseev A. A. |
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Affiliation: | (1) Ivanovo State University of Chemical Technology, pr. F. Engel'sa 7, Ivanovo, 153007, Russia;(2) Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071, Russia;(3) University of Lódz´, Narutowicza 68, Lódz´, Poland |
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Abstract: | Electrochemical and electrocatalytic properties of differently structured macroheterocyclic complexes (MC) are studied by a cyclic voltammetry method. The potential at half-height of the rising branch of the peak current of the first stage in the oxygen reduction, , is used for estimating the electrocatalytic action of complexes. Major structural factors that exert maximum electrocatalytic action on the oxygen reduction are determined by comparing for different MC. The maximum electrocatalytic activity in this reaction in 0.1 M KOH is exhibited by complexes containing cobalt and iron as the central metal atom as well as polymeric compounds and those having electron-donating substituents in the organic ligand. |
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Keywords: | voltammetry oxygen electrocatalysis electroreduction |
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