Polymer-Assisted Synthesis, Structure and Magnetic Properties of Bimetallic FeCo- and FeNi/N-Doped Carbon Nanocomposites

Polymer-Assisted Synthesis, Structure and Magnetic Properties of Bimetallic FeCo- and FeNi/N-Doped Carbon Nanocomposites

Bimetallic FeCo and FeNi nanoparticles attract much attention due to their promising magnetic properties and a wide range of practical applications as recording and storage media, catalytic systems in fuel cells, supercapacitors, lithium batteries, etc. In this paper, we propose an original approach...

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Bibliographic Details
Published in:Magnetochemistry Vol. 9; no. 10; p. 213
Main Authors: Kugabaeva, Gulsara D., Kydralieva, Kamila A., Bondarenko, Lyubov S., Baimuratova, Rose K., Karpenkov, Dmitry Yu, Golovkova, Ekaterina A., Degtyarenko, Pavel N., Golubeva, Nina D., Uflyand, Igor E., Dzhardimalieva, Gulzhian I.
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-10-2023
Subjects:
Acrylamide
Alloys
bimetallic nanoparticles
Bimetals
Carbon
Chemical properties
Chemical synthesis
Composite materials
Coordination compounds
Crystallization
Ferromagnetism
Fuel cells
Gas turbine engines
Hydrocarbons
Infrared spectroscopy
Lithium batteries
Low temperature
Magnetic properties
Methods
Nanocomposites
Nanomaterials
Nanoparticles
Nitrates
Nitrogen
Oxidation
Phase composition
Polymerization
Polymers
Temperature
Thermal analysis
thermolysis
Russia
Germany
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Summary:Bimetallic FeCo and FeNi nanoparticles attract much attention due to their promising magnetic properties and a wide range of practical applications as recording and storage media, catalytic systems in fuel cells, supercapacitors, lithium batteries, etc. In this paper, we propose an original approach to the preparation of FeCo- and FeNi/N-doped carbon nanocomposites by means of a coupled process of frontal polymerization and thermolysis of molecular co-crystallized acrylamide complexes. The phase composition, structure, and microstructure of the resulting nanocomposites are studied using XRD, IR spectroscopy, elemental and thermal analysis, and electron microscopy data. The main magnetic characteristics of the synthesized nanocomposites, including the field dependences and the ZFC-FC curves peculiarities, are studied. It is shown that the obtained FeCo/N-C nanocomposites exhibit exchange bias behavior at low temperatures. In turn, FeNi/N-C nanocomposites are ferromagnetically ordered.
ISSN:2312-7481
2312-7481
DOI:10.3390/magnetochemistry9100213