期刊
JOURNAL OF APPLIED PHYSICS
卷 111, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3676620
关键词
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资金
- National Science Foundation [CREST-HRD 0833112]
- NSF-EPSCoR Institute for Functional Nanomaterials (IFN)
- Direct For Education and Human Resources
- Division Of Human Resource Development [833112] Funding Source: National Science Foundation
The present work addresses the synthesis and characterization of crystalline cobalt nanoparticles produced through a modified polyol-process conducive to the controlled formation of magnetic soft-Co structures with potential for applications in biomedicine. XRD characterization evidenced the influence of oleate and acetate species on the formation and crystal growth-inhibition of crystalline fcc-Co with controlled average crystallite sizes in the 8-10nm range. Magnetic measurements confirmed the strong influence of synthesis conditions on crystal structure and hence, on magnetic properties. As-synthesized nanoparticles exhibited coercivity values below 100 Oe and magnetization as high as 155 emu/g at room temperature. These values agreed with the soft magnetic nature of the fcc-Co phase. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3676620]
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