Modelling of Using Hall Magnetic Sensor for Environmental Monitor of Micrometer-Sized Magnetite Particles

Fan, Hua; Xie, Huajiang; Mao, Jiangmin; Liu, JianMing; Diao, Xiaopeng; Wei, Qi; Feng, Quanyuan

doi:10.1109/syscon48628.2021.9447084

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2022

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“…Nanosized magnetic materials of Fe, Co, and Ni have received much attention owing to their unique magnetic, catalytic, and optical properties, as well as their promising applications in magnetic sensors, high-density magnetic recording, catalysis, and biomedicine [1][2][3][4][5][6][7]. Nickel carbide (Ni 3 C) has received increasing attention because of its remarkable chemical stability, catalytic properties, and magnetic properties.…”

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confidence: 99%

Simple Synthesis and Characterization of Shell-Thickness-Controlled Ni/Ni3C Core-Shell Nanoparticles

Woo

Suh

2022

Nanomaterials

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Ni/Ni3C core-shell nanoparticles with an average diameter of approximately 120 nm were carburized via a chemical solution method using triethylene glycol. It was found that over time, the nanoparticles were covered with a thin Ni3C shell measuring approximately 1–4 nm, and each Ni core was composed of poly grains. The saturation magnetization of the core-shell nanopowders decreased in proportion to the amount of Ni3C. The synthesis mechanism of the Ni/Ni3C core-shell nanoparticles was proposed through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) analyses.

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