Preparation of Hollow Nickel Ferrite Microspheres and their Magnetic Properties

Jing Jing Li; Yun Zhao; Han Sheng Li; Qin Wu; Qing Ze Jiao

doi:10.4028/www.scientific.net/AMR.1035.488

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1035Preparation of Hollow Nickel Ferrite Microspheres...

Preparation of Hollow Nickel Ferrite Microspheres and their Magnetic Properties

Abstract:

Hollow nickel ferrite microspheres with a diameter of about 1.5 to 2.5 μm were synthesized using an emulsion-based solvothermal method in combination with calcination at 550°C. The structures and morphologies of the nickel ferrite microspheres were characterized using an X-ray diffractometer, a transmission electron microscopy and a field emission scanning electron microscopy. Magnetization measurement was carried out using a vibrating sample magnetometer at room temperature. The saturation magnetization and coercivity of nickel ferrite microspheres could reach 19.41 emu/g and 202.28 Oe, respectively. Hollow nickel ferrite microspheres might be used as catalysts, magnetic materials and microwave absorbers.

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Proceedings of 2014 International Conference on Material Science and Engineering

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Periodical:

Advanced Materials Research (Volume 1035)

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488-491

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https://doi.org/10.4028/www.scientific.net/AMR.1035.488

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Online since:

October 2014

Authors:

Jing Jing Li, Yun Zhao, Han Sheng Li, Qin Wu, Qing Ze Jiao*

Keywords:

Ferrites, Hollowing, Magnetic Property, Microspheres

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