Fast and Controllable Synthesis of Core-Shell Fe 3 O 4 -C Nanoparticles by Aerosol CVD

A method for simple and fast (30-60 s) synthesis of spherical "Fe O core-carbon shell" structures by atmospheric pressure aerosol pyrolysis of benzoic acid in dimethylformamide solutions containing dispersed Fe O nanoparticles is described. It has been experimentally shown that it is possi...

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Bibliographic Details
Published in:ACS omega 2020-04, Vol.5 (14), p.8146-8150
Main Authors: Tyurikova, Irina A, Alexandrov, Sergey E, Tyurikov, Kirill S, Kirilenko, Demid A, Speshilova, Anastasiya B, Shakhmin, Alexander L
Format: Article
Language:English
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Summary:A method for simple and fast (30-60 s) synthesis of spherical "Fe O core-carbon shell" structures by atmospheric pressure aerosol pyrolysis of benzoic acid in dimethylformamide solutions containing dispersed Fe O nanoparticles is described. It has been experimentally shown that it is possible to control both the size of the core-shell particles and the size of Fe O grains and their amount in the particle core by the variation of benzoic acid concentration in solution and using pre-stabilized by mannitol iron oxide nanoparticles. It has been found that particles with an average size of 250-350 nm are formed at the concentration of benzoic acid in the range 0.5-1 mol/L. At a concentration of about 1 mol/L, preliminary stabilization of iron oxide nanoparticles by mannitol with a size of about 180 nm is performed.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.0c00392