ELECTROCATALYTIC OXIDATION OF STARCH IN TWO-CHAMBER CELL WITH REGENERATION OF OXIDANT IN SITU ON ELECTRODES FROM Pb/PbO2 AND GRAPHITE

UDC 541.135:547.0

  • Galina Vasil'yevna Kornienko Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS Email: kornienko@icct.ru
  • Svetlana Nikolayevna Kapaeva Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS Email: Sveta0480@inbox.ru
  • Yuriy Nikolayevich Malyar Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS; Siberian Federal University Email: yumalyar@gmail.com
  • Vasiliy Leont'yevich Kornienko Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS Email: kvl@icct.ru
  • Oksana Pavlovna Taran Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS; Siberian Federal University Email: taran.op@icct.krasn.ru
DOI_disc_logo https://doi.org/10.14258/jcprm.20210410590
Keywords: electrocatalytic oxidation, potato starch, starch dialdehyde

Abstract

Electrocatalytic oxidation of potato starch was investigated potassium iodate in a two-chamber electrolytic cell with in situ regeneration of the oxidant on Pb/PbO2 and graphite electrodes, depending on the current density, electrolyte pH and electrolysis time. To analyze the samples of the starting and oxidized starch, the methods of photometry, X-ray diffraction, gel permeation chromatography, and IR spectroscopy were used. The optimal conditions for starch dialdehyde production were determined: current density 50 mA/cm2, electrolyte pH 7, electrolysis time 80 min. and a temperature of 25 °С. The weight average molecular weights (Mw) of AIBN samples were determined, which are several orders of magnitude lower (104) than the average molecular weight of native starch (108).

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Author Biographies

Galina Vasil'yevna Kornienko, Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS

старший научный сотрудник, кандидат химических наук

Svetlana Nikolayevna Kapaeva, Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS

младший научный сотрудник

Yuriy Nikolayevich Malyar, Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS; Siberian Federal University

старший научный сотрудник, кандидат химических наук

Vasiliy Leont'yevich Kornienko, Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS

ведущий научный сотрудник, доктор химических наук

Oksana Pavlovna Taran, Institute of Chemistry and Chemical Technology SB RAS, FRC KSC SB RAS; Siberian Federal University

директор, доктор химических наук

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Published
2021-12-14
How to Cite
1. Kornienko G. V., Kapaeva S. N., Malyar Y. N., Kornienko V. L., Taran O. P. ELECTROCATALYTIC OXIDATION OF STARCH IN TWO-CHAMBER CELL WITH REGENERATION OF OXIDANT IN SITU ON ELECTRODES FROM Pb/PbO2 AND GRAPHITE // chemistry of plant raw material, 2021. № 4. P. 119-127. URL: http://journal.asu.ru/cw/article/view/10590.
Issue
No 4 (2021)
Section
Biopolymers of plants

Copyright (c) 2021 chemistry of plant raw material

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