| Autor: |
G.P. Karpacheva, A.A. Vasilev, M.N. Efimov, Ella L. Dzidziguri, D. G. Muratov |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Physics and Chemistry of Materials Treatment. 1:58-66 |
| ISSN: |
0015-3214 |
| DOI: |
10.30791/0015-3214-2021-1-58-66 |
| Popis: |
A method for the synthesis of nanoparticles of the Cu-Fe bimetallic system with limited mutual solubility of the components is proposed. The synthesis method consists of a one-stage process of IR pyrolysis of precursors in the form of films obtained from a joint solution of polyacrylonitrile and hydrates-nitrates of iron and copper. The effect of the synthesis temperature on the structure formation of the nanocomposites and the phase composition of bimetallic Cu-Fe nanoparticles dispersed in the carbon matrix was studied. The analysis showed a simultaneous presence of Fe and Cu phases in nanocomposites, presumably with a low solubility of the components. The average particle size is 14-17 nm and changes insignificantly with an increase in the synthesis temperature from 400 to 700°C. An increase in the synthesis temperature to 800°C led to a broadening of the particle size distribution and the increase in the average size. The formation of complex carbon nanostructures on Cu-Fe nanoparticles is found. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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