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[학술저널]

  • 학술저널

Yong Jae Suh Dae Sup Kil Kang Sup Chung Hyo Sook Lee Huiping Shao

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초록

Almost monodisperse iron oxide nanoparticles with an average particle size ranging from 5 to 43 ㎚ were fabricated using an enviro㎚entally friendly starting material, ferrous acetate. The smallest particles were formed in the presence of a reductant, 1,2-dodecanediol, while the particle size increased with increasing concentration of dispersing agents. The dispersants consisted of various combinations of oleic acid, oleylamine, trioctylphosphine, and polyvinylpyrrolidone. The threshold temperature to form crystalline particles was found to be 240 ℃. The 43 ㎚ nanoparticles exhibited a room temperature saturation magnetization and coercivity of 57 emu/g and 47 Oe, respectively.

목차

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgements
References

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