Metal-carbon compositions as thermolysis products of complex compounds [Co(А)6]х[Fe(CN)6]у•nH2O (А = NH3, en/2)
| Autor: | Yu. P. Semushina, N.S. Tsvetov, G. I. Kadyrova, S. I. Pechenyuk, D. P. Domonov, A. T. Belyaevskii |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Thermal decomposition
chemistry.chemical_element Hydrochloric acid Condensed Matter Physics Metal chemistry.chemical_compound chemistry visual_art Specific surface area visual_art.visual_art_medium Thermal stability Leaching (metallurgy) Physical and Theoretical Chemistry Inert gas Instrumentation Carbon Nuclear chemistry |
| Zdroj: | Thermochimica Acta. 703:179009 |
| ISSN: | 0040-6031 |
| Popis: | The formation conditions of residual carbon have been studied for thermolysis in an inert atmosphere of double complex compounds of two groups of analogs: [Co(А)6][Fe(CN)6] and [Co(А)6]4[Fe(CN)6]3∙nH2O, where A = NH3, en/2. Isothermal experiments were carried out for extreme points of thermograms to obtain and analyze thermolysis products. Carbon was extracted from thermolysis products by leaching with hydrochloric acid, and its composition, thermal stability in air, specific surface area, and crystalline modification were investigated. The maximum carbon yield was for the compound [Co(NH3)6][Fe(CN)6], the largest specific surface area of carbon was 380 m2/g for [Co(en)3][Fe(CN)6]∙2H2O. The extracted carbon contains the admixtures of Co and Fe. The extracted carbon is stable when heated in air up to 450-500°С and burns completely up to 700°С. The carbon samples are largely graphitized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect