Open AccessPreparation of metallic cobalt powders by thermolysis of cobalt (II) acetate, oxalate and formate
Author(s) -
Oleg Yu. Kamenshchikov,
Alexander A. Ketov,
V.S. Korzanov,
M.P. Krasnovskikh,
И. Г. Мокрушин
Publication year - 2021
Publication title -
vestnik permskogo universiteta. seriâ himiâ
Language(s) - English
Resource type - Journals
ISSN - 2223-1838
DOI - 10.17072/2223-1838-2021-1-5-16
Subject(s) - cobalt , thermal decomposition , formate , oxalate , inorganic chemistry , metal , chemistry , decomposition , thermal analysis , differential scanning calorimetry , materials science , salt (chemistry) , nuclear chemistry , carboxylate , organic chemistry , thermal , catalysis , physics , meteorology , thermodynamics
The thermal decomposition of cobalt (II) formate, acetate, and oxalate was studied by synchronous thermal analysis. It is established that in all cases the final product is metallic cobalt. Thermogravi- metric analysis combined with differential scanning calorimetry and mass spectroscopy made it possi- ble to establish thermolysis schemes and gaseous products of salt decomposition. The conditions for obtaining powdered metallic cobalt from carboxylic acid salts are determined. It was determined by electron microscopy that the particle size and structure of metal powders depend on the type of initial salt.