Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 491, Issue 1-2, Pages 431-435Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.10.217
Keywords
Nanostructured materials; Chemical synthesis; Magnetic measurement; Transmission electron microscopy; X-ray diffraction
Categories
Funding
- Ministry of Education of the People's Republic of China [NECT-05-0419]
- Shanghai Municipal Education Commission [07SG37]
- Natural Science Foundation of China [50772022, 50772127]
- Shanghai Leading Academic Discipline Project [13603]
- Cultivation Fund of the Key Scientific and Technical Innovation Project [708039]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
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Monodisperse Co-Zn ferrite (Co1-xZnxFe2O4) nanospheres have been synthesized by the solvothermal method. In this process, glycol was used as a solvent, anhydrous sodium acetate was used as an alkalinity additive and polyethylene glycol 200 was used as a surfactant. The as-prepared samples were characterized in detail by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), energy-dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM). Results showed that a large number of high purity Co1-xZnxFe2O4 nanocrystallites were synthesized and these nanocrystallites underwent oriented aggregation to form nanospheres. The variation of saturation magnetization (M-s) value of the samples was studied. The maximum saturation magnetization value of the as-prepared sample (Co0.5Zn0.5Fe2O4) reached 64.6 emu g(-1). (C) 2009 Elsevier B.V. All rights reserved.
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