Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Properties of Co-Ferrite Nanoparticles Synthesized by Thermal Decomposition Method

  • Oh, Young-Woo (Dept. of Advanced Materials Engineering, Kyungnam University) ;
  • Liu, J.P. (Department of Physics, University of Texas at Arlington)
  • Published : 2006.09.01
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Abstract

Co-ferrite nanoparticles have been synthesized by the decomposition of iron(III) acetylacetonate, $Fe(acac)_3$ and Co acetylacetonate, $Co(acac)_2$ in benzyl/phenyl ether in the presence of oleic acid and oleyl amine at the refluxing temperature of $295^{\circ}C$/$265^{\circ}C$ for 30 min. before cooling to room temperature. Particle diameter detected by PSA can be turned from 4 nm to 20 nm by seed-mediated growth and reaction conditions. Structural and magnetic characterization of Co-ferrite were measured by use of HRTEM, SAED (selected area electron diffraction), XRD and SQUID. The as-synthesized Co-ferrite nanoparticles have a cubic spinel structure and coercivity of 20 nm $CoFe_{2}O_{4} nanoparticles reached 1 kOe at room temperature and 18 kOe at 10 K.

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References

  1. B. I. Lee, L. Qi and T. Copeland, J. Ceram. Proc. Res. 6(1), 31 (2005)
  2. N. Moumen and M. P. Pileni, Chem. Mater. 8, 1128 (1996) https://doi.org/10.1021/cm950556z
  3. C. N. Chinnasamy, B. Jeyadevan, K. Shinoda, and K. Tohji etc., Appl. Phys. Lett. 83(14), 2862 (2003) https://doi.org/10.1063/1.1616655
  4. S. Sun, H. Zeng, D. B. Robinson, S. Raoux, P. M. Rice, S. X. Wang and G. Li, J. Am. Chem. 126(1), 273-279 (2004) https://doi.org/10.1021/ja0380852
  5. K. E. Elkins, T. S. Vedantam, J. P. Liu, H. Zeng, S. Sun, Y. Ding and Z. L. Wang, Nano Letters 3(12), 1467-1649 (2003) https://doi.org/10.1021/nl034734w
  6. D. Li, N. Poudyal, V. Nadawana, Z. Jin, K. Elkins, J. P. Liu, J. Appl. Phys. 99, 08E912 (2006) https://doi.org/10.1063/1.2170593
  7. H. Yu, P. C. Gibbson, K. F. Kelton, and W. E. Buhro, J. Am. Chem. Soc. 123, 9198 (2001) https://doi.org/10.1021/ja016529t
  8. M. A. Watzky and R. G. Kinke, J. Am. Chem. Soc. 119, 10382 (1997) https://doi.org/10.1021/ja9705102

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