FU-07 Characterization of Magnetic Core-Shell Nanoparticles in Carbon Matrices.
Creators: Vicente Pena Perez
Cristian Reynaga Gonzalez
Franco Iglesias
Armond Khodagulyan
Oscar Bernal
Armen Kocharian
Publisher: name: IEEE
Year: 2025

This article presents a comprehensive study on the synthesis and characterization of metallic magnetic and non-magnetic nanoparticles, including Iron, Copper, Nickel, Zinc, Cobalt, and Ferrocene, and their enhanced magnetic properties. The research delves into the nanostructure images and size-dependent properties of these nanoparticles, utilizing techniques such as powdered X-ray diffraction (PXRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM) for detailed size and structural analysis. A novel algorithm is introduced for the accurate morphological analysis of these nanoparticles, focusing on their crystallinity and amorphous regions. The figure below of the magnetic measurements for FePc indicates to be the most saturated, whereas FeTCPP seems the most coercive. NiTPP seems to be the midpoint showing average saturation and coercivity, and CuTPP seems to be the least responsive to magnetic behavior. The study establishes a correlation between the structural properties using data SEM and HR-STEM images and magnetic characteristics of the nanoparticles, as assessed through physical property measurement system (PPMS) and electron paramagnetic resonance (EPR). The findings underscore the significance of advancing the magnetic properties of graphene itself and in synthesis of magnetic nanoparticles in carbon matrix for biomedicine applications, offering new perspectives for future research in nanotechnology and materials science. This work is supported by grants from the American National Science Foundation, catsus grant No. HRD-1547723 and No. HRD-2112554, as well as the National Institute of Health, grant No. T34-GM08228.
This article presents a comprehensive study on the synthesis and characterization of metallic magnetic and non-magnetic nanoparticles, including Iron, Copper, Nickel, Zinc, Cobalt, and Ferrocene, and their enhanced magnetic properties. The research delves into the nanostructure images and size-dependent properties of these nanoparticles, utilizing techniques such as powdered X-ray diffraction (PXRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM) for detailed size and structural analysis. A novel algorithm is introduced for the accurate morphological analysis of these nanoparticles, focusing on their crystallinity and amorphous regions. The figure below of the magnetic measurements for FePc indicates to be the most saturated, whereas FeTCPP seems the most coercive. NiTPP seems to be the midpoint showing average saturation and coercivity, and CuTPP seems to be the least responsive to magnetic behavior. The study establishes a correlation between the structural properties using data SEM and HR-STEM images and magnetic characteristics of the nanoparticles, as assessed through physical property measurement system (PPMS) and electron paramagnetic resonance (EPR). The findings underscore the significance of advancing the magnetic properties of graphene itself and in synthesis of magnetic nanoparticles in carbon matrix for biomedicine applications, offering new perspectives for future research in nanotechnology and materials science. This work is supported by grants from the American National Science Foundation, catsus grant No. HRD-1547723 and No. HRD-2112554, as well as the National Institute of Health, grant No. T34-GM08228.