Open AccessElectroreduction of the bromate anion on a microlectrode in excess acid: solution of the inverse kinetic problem
Author(s) -
O. A. Goncharova,
A. T. Glazkov,
K. V. Lizgina,
A. A. Piryazev,
S. L. Koryakin,
D. V. Konev,
М. А. Воротынцев,
V. B. Mintsev
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524843294-298
Subject(s) - bromate , autocatalysis , sulfuric acid , chemistry , redox , inorganic chemistry , kinetic energy , aqueous solution , electrolyte , ion , electrochemistry , microelectrode , electrode , catalysis , organic chemistry , physics , quantum mechanics , bromide
Acidic aqueous solutions of bromic acid salts (bromates) are promising electrolytes for redox flow batteries due to their record high power capacity and the rate of electrode reactions proceeding in the autocatalytic regime. The paper gives a comparison of the results of mathematical modeling and experimental measurements of steady state currents of bromate anion electroreduction in sulfuric acid medium on microelectrodes of various radii. An algorithm of solving the inverse problem suitable for determination of the key transport and kinetic process parameters was proposed and tested.