Open AccessАллотропные модификации кобальта при химическом осаждении
Author(s) -
А.В. Чжан,
С.А. Подорожняк,
В.К. Мальцев,
И.Н. Краюхин,
Г.С. Патрин
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.01.50396.065
Subject(s) - cobalt , precipitation , crystal structure , nuclear magnetic resonance , materials science , chemistry , crystallography , inorganic chemistry , physics , meteorology
The effect of the acidity of solutions on the crystal structure of cobalt during its chemical precipitation is reported. On the basis of structural, magnetic studies, as well as studies by nuclear magnetic resonance, it was shown that a change in the acidity of the working solution leads to the precipitation of cobalt in various allotropic modifications in the immediate environment: by the type of hcp in the region of small (up to ~ 8.5) and by the type of fcc in the region large (over ~ 8.5) pH values. The formation of these modifications of cobalt is associated with size effects, which are caused by a decrease in the size of its particles with increasing pH.