Open AccessАнодный оксид алюминия, сформированный в водных растворах хелатных комплексных соединений цинка и кобальта
Author(s) -
А.А. Позняк,
Gerhard Hans Knörnschild,
Andrei Pligovka,
Т.Д. Ларин
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.10.51360.110-21
Subject(s) - anodizing , electrochemistry , aqueous solution , aluminium , materials science , elemental analysis , current density , photoluminescence , oxide , anode , inorganic chemistry , metallurgy , chemistry , chemical engineering , nuclear chemistry , electrode , physics , optoelectronics , quantum mechanics , engineering
The galvanostatic anodizing results of specially prepared high-purity aluminum in aqueous solutions of complex compounds K3[Co(C2O4)3] and K2[Zn(edta)] of various concentrations in the current density ranges 1.5–1.10·102 and 1.5−30 mA·сm−2, respectively. The kinetic features of anodizing have been established, indicating the occurrence of an oscillatory electrochemical process. Morphological features of a flaky and loose nature for K2[Zn(edta)] and monolithic for K3[Co(C2O4)3], uncharacteristic for anodic aluminum oxide, were revealed. The elemental composition, IR spectroscopic and photoluminescent characteristics of the formed oxides are shown.