Yuan-guang Zhang, You-cun Chen, Yin-guo Zhao. Synthesis and Magnetic Properties of Co3O4 Nanoflowers[J]. Chinese Journal of Chemical Physics , 2007, 20(5): 601-606. doi: 10.1088/1674-0068/20/05/601-606
Citation: Yuan-guang Zhang, You-cun Chen, Yin-guo Zhao. Synthesis and Magnetic Properties of Co3O4 Nanoflowers[J]. Chinese Journal of Chemical Physics , 2007, 20(5): 601-606. doi: 10.1088/1674-0068/20/05/601-606

Synthesis and Magnetic Properties of Co3O4 Nanoflowers

doi: 10.1088/1674-0068/20/05/601-606
  • Received Date: 2007-03-09
  • Rev Recd Date: 2007-08-02
  • Co3O4 nanoflowers were prepared through a sequential process of a hydrothermal reaction and heat treatment. The as-synthesized products were characterized by powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and infrared spectrum. These nanoflowers consist of numerous Co3O4 nanofibers, which have diameters of 20-40 nm, and lengths ranging from 100 nm to 500 nm. They have pore structures and Brunauer-Emmett-Teller surface area of ?34.61 m2/g. The temperature dependence curves of magnetization in zero-field-cooled conditions and field-cooled indicate mainly antiferromagnetism and weak ferromagnetism of Co3O4 nanoflowers at blocking temperature of ?34 K respectively.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Synthesis and Magnetic Properties of Co3O4 Nanoflowers

doi: 10.1088/1674-0068/20/05/601-606

Abstract: Co3O4 nanoflowers were prepared through a sequential process of a hydrothermal reaction and heat treatment. The as-synthesized products were characterized by powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and infrared spectrum. These nanoflowers consist of numerous Co3O4 nanofibers, which have diameters of 20-40 nm, and lengths ranging from 100 nm to 500 nm. They have pore structures and Brunauer-Emmett-Teller surface area of ?34.61 m2/g. The temperature dependence curves of magnetization in zero-field-cooled conditions and field-cooled indicate mainly antiferromagnetism and weak ferromagnetism of Co3O4 nanoflowers at blocking temperature of ?34 K respectively.

Yuan-guang Zhang, You-cun Chen, Yin-guo Zhao. Synthesis and Magnetic Properties of Co3O4 Nanoflowers[J]. Chinese Journal of Chemical Physics , 2007, 20(5): 601-606. doi: 10.1088/1674-0068/20/05/601-606
Citation: Yuan-guang Zhang, You-cun Chen, Yin-guo Zhao. Synthesis and Magnetic Properties of Co3O4 Nanoflowers[J]. Chinese Journal of Chemical Physics , 2007, 20(5): 601-606. doi: 10.1088/1674-0068/20/05/601-606

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