PUBLICATION
Magnetic Nanochains of FeNi(3) Prepared by a Template-Free Microwave-Hydrothermal Method
- Authors
- Jia, J., Yu, J.C., Wang, Y.X., and Chan, K.M.
- ID
- ZDB-PUB-100820-2
- Date
- 2010
- Source
- ACS applied materials & interfaces 2(9): 2579-2584 (Journal)
- Registered Authors
- Chan, King-Ming
- Keywords
- none
- MeSH Terms
-
- Electromagnetic Fields
- Hot Temperature
- Iron Compounds/chemistry*
- Iron Compounds/radiation effects
- Materials Testing
- Nanostructures/chemistry*
- Nanostructures/radiation effects*
- Nickel/chemistry*
- Nickel/radiation effects
- Particle Size
- Water/chemistry*
- PubMed
- 20701267 Full text @ ACS Appl. Mater. Interfaces
Citation
Jia, J., Yu, J.C., Wang, Y.X., and Chan, K.M. (2010) Magnetic Nanochains of FeNi(3) Prepared by a Template-Free Microwave-Hydrothermal Method. ACS applied materials & interfaces. 2(9):2579-2584.
Abstract
Magnetic FeNi(3) nanochains were synthesized by reducing iron(III) acetylacetonate and nickel(II) acetylacetonate with hydrazine in ethylene glycol solution without any template under a rapid and economical microwave irradiation. The morphology and composition of the as-prepared products were characterized by field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and elemental mapping. The size of the aligned nanospheres in the magnetic FeNi(3) chains could be adjusted from 150 to 550 nm by increasing the amounts of the precursors. The length of the nanochain is about several tens of micrometers. The ratio of the precursors plays an important role in the formation of FeNi(3) nanostructures. Magnetic measurement reveals that the FeNi(3) nanochains show enhanced coercivity and saturation magnetization. The formation mechanism of the product is discussed. Toxicity tests of FeNi(3) nanochains show that the as-prepared nanochains are nontoxic to zebrafish larvae. In vitro magnetic resonance imaging (MRI) confirms the effectiveness of the FeNi(3) nanochains as sensitive MRI probes.
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