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Synthesis of magnetic carrier sub-microparticles with high stability through carbon reduction and solation coating methods

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Abstract

This paper presents a novel approach in synthesizing SiO2–Fe3O4 magnetic carrier with high stability. The Fe3O4 magnetic powders were synthesized via one-step method named carbon reduction method. The advantages of the methods are of simple process, none lead-in pollution agent, low cost and adaptation to large-lot production. The stability of the magnetic powders is improved through modifying the Fe3O4 with SiO2 in solation method. The results of the characterizations show that the superparamagnetic SiO2–Fe3O4 sub-microparticles (~600 nm) with saturation intensity of 36.4 mA·m2·g−1 are obtained successfully. Moreover, the quantitating, repeatability and high stability of the carbon reduction method are demonstrated as well.

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Acknowledgments

This work was financially supported by the Natural Science Foundation of Science and Technology Agency of Shanxi Province, China (No. 2011011013-2).

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Authors and Affiliations

  1. National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan, 030051, China

    Qiang Zhang, Li-Bo Gao, Jun-Yang Li, Ze-Bin Guo, Zhen-Yin Hai, Yan-Ting Xing & Chen-Yang Xue

  2. Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan, 030051, China

    Qiang Zhang, Li-Bo Gao, Jun-Yang Li, Ze-Bin Guo, Zhen-Yin Hai, Yan-Ting Xing & Chen-Yang Xue

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  1. Qiang Zhang
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  2. Li-Bo Gao
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Correspondence to Chen-Yang Xue.

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Zhang, Q., Gao, LB., Li, JY. et al. Synthesis of magnetic carrier sub-microparticles with high stability through carbon reduction and solation coating methods. Rare Met. 35, 870–873 (2016). https://doi.org/10.1007/s12598-015-0662-7

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  • DOI: https://doi.org/10.1007/s12598-015-0662-7

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