Open AccessCrystalloquasichemical Model of Spinel CoFe2O4 Formation, Obtained by Chemical co-Precipitation Method
Author(s) -
Tetiana Tatarchuk,
I. P. Yaremiy,
Natalia Paliychuk
Publication year - 2015
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.16.3.540-546
Subject(s) - spinel , cobalt , ferrite (magnet) , stoichiometry , impurity , materials science , precipitation , crystal structure , thermal decomposition , inorganic chemistry , crystallography , chemistry , metallurgy , composite material , physics , organic chemistry , meteorology
In the work the spinel cobalt ferrite synthesized by chemical co-precipitation method. The X-ray diffraction analysis and thermal analysis confirmed the crystalline structure and phase purity of the prepared ferrite. The crystalloquasichemical mechanism of formation stoichiometric cobalt ferrite through interaction by defective hydrooxide phases was described. The surface phenomena that occur on the boundary phase distribution was described. There formation of cationic and anionic vacancies, rooted cobalt atoms or oxygen atoms. Crystalloquasichemical modeling of surface interactions between Co(OH)2 and Fe(OH)3 can trace the formation of spinel structure with the participation of antistructure of matrix and reduced to the corresponding stoichiometric hydroxides species. Shows the reaction of four types of crystal impurity clusters on the surface of the hydroxide matrix and their interaction with each other to form spinel СоFe2O4.