期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 320, 期 3-4, 页码 575-578出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2007.07.020
关键词
thermal decomposition; cobalt; nanoparticle; complex
[Bis(salicylidene)cobalt(II)] was used as a precursor to prepare cobalt nanoparticles of average diameter 25-35nm by thermal decomposition. The different combinations of triphenylphosphine and oleylamine were added as surfactants to control the particle size. The resultant samples are characterized by X-ray diffractometer (XRD) and transmission electron microscope (TEM) to depict the phase and morphology. The hysteresis loops of the obtained samples reveal the soft magnet behaviors the enhanced coercivity (H-c) and decreased saturation magnetization (M-s) in contrast to their respective bulk materials. (c) 2007 Elsevier B.V. All rights reserved.
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