A Facile Solvothermal Synthesis and Magnetic Properties of MnFe2O4 Spheres with Tunable Sizes

Authors

  • Gen Chen,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
    2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, China
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    • These authors contributed equally to this work.
  • Jingying Wang,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
    2. Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
    3. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, China
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    • These authors contributed equally to this work.
  • Libin Zhou,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
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  • Wei Ma,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
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  • Dan Zhang,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
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  • Fenlian Ren,

    1. Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
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  • Hailong Yan,

    1. Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
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  • Guanzhou Qiu,

    1. Department of Inorganic Materials, Central South University, Changsha, Hunan, China
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  • Xiaohe Liu

    Corresponding author
    1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, China
    • Department of Inorganic Materials, Central South University, Changsha, Hunan, China
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Author to whom correspondence should be addressed. e-mail: liuxh@csu.edu.cn

Abstract

We demonstrated that MnFe2O4 spheres could be successfully prepared in large-scale via a facile solvothermal process. The average size of final products over a wide range from 40 to 420 nm was remarkably influenced by the experimental parameters, such as reaction duration, surfactants, and initial concentration of reagents. The structure, size, morphology, and magnetic properties of final products were characterized by X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, scanning electron microscopy, and vibrating sample magnetometer. The magnetic properties of final products varied with the change of experimental conditions. Preliminary results revealed that this approach could be successfully extended to the preparation of other ferrite compounds.

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