Abstract
The goal of this paper was to synthesize and characterize core–shell iron-carbon nanoparticles. For this purpose, nanoparticles were synthetized via a hydrothermal co-precipitation route, applying a 22 factorial experimental design with a central point, and varying both the concentration of the iron precursor (iron nitrate) and the reaction temperature. The nanoparticles were characterized via the following analysis: vibrating sample magnometry (VSM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX), high resolution field emission gun scanning electron microscopy (SEM/FEG) and transmission electron microscopy (TEM) analysis. The results showed that the hydrothermal co-precipitation synthesis route enabled the production of Fe3O4–Fe2O3@C core–shell nanoparticles with dimensions between 4 and 8 nm. An increase in iron nitrate concentration and temperature during synthesis entailed a decrease in the remnant field and the magnetization of the nanoparticles.
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We acknowledge research supported by LCME-UFSC and financial support from the Ministério da Ciência e Tecnologia/Conselho Nacional de Desenvolvimento Científico e Tecnológico (MCT/CNPq/Brazil) and CAPES.
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Lima, M.M., Macuvele, D.L.P., Nones, J. et al. Synthesis of Fe3O4–Fe2O3@C Core-Shell Nanoparticles: Effect of Reactional Parameters on Structural and Magnetics Properties. J Inorg Organomet Polym 29, 1848–1861 (2019). https://doi.org/10.1007/s10904-019-01146-8
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DOI: https://doi.org/10.1007/s10904-019-01146-8