| Synthesis and properties of Au-Fe3O4 and Ag-Fe3O4 heterodimeric nanoparticles |
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| 作者姓名： | 丁皓 申承民 惠超 徐梽川 李晨 田园 时雪钊 高鸿钧 |
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| 作者单位： | Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China |
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| 基金项目： | Project supported by the National Natural Science
Foundation of China (Grant Nos.~60571045 and 50872147) and the National
High-Tech. Research and Development Program of China (Grant No.~2007AA03Z035). |
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| 摘 要： | Monodisperse Au-Fe 3 O 4 heterodimeric nanoparticles (NPs) were prepared by injecting precursors into a hot reaction solution.The size of Au and Fe 3 O 4 particles can be controlled by changing the injection temperature.UV-Vis spectra show that the surface plasma resonance band of Au-Fe 3 O 4 heterodimeric NPs was evidently red-shifted compared with the resonance band of Au NPs of similar size.The as-prepared heterodimeric Au-Fe 3 O 4 NPs exhibited superparamagnetic properties at room temperature.The Ag-Fe 3 O 4 heterodimeric NPs were also prepared by this synthetic method simply using AgNO 3 as precursor instead of HAuCl 4.It is indicated that the reported method can be readily extended to the synthesis of other noble metal conjugated heterodimeric NPs.
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| 关 键 词： | heterodimeric structure monodisperse Au-Fe 3 O 4 nanoparticles |
| 收稿时间： | 2009-09-10 |
Synthesis and properties of Au－Fe3O4 and Ag－Fe3O4 heterodimeric nanoparticles |
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| Ding Hao,Shen Cheng-Min,Hui Chao,Xu Zhi-Chuan,Li Chen,Tian Yuan,Shi Xue-Zhao and Gao Hong-Jun.Synthesis and properties of Au-Fe3O4 and Ag-Fe3O4 heterodimeric nanoparticles[J].Chinese Physics B,2010,19(6):66102-066102. |
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| Authors: | Ding Hao Shen Cheng-Min Hui Chao Xu Zhi-Chuan Li Chen Tian Yuan Shi Xue-Zhao and Gao Hong-Jun |
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| Affiliation: | Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Monodisperse Au--Fe$3O4 heterodimeric nanoparticles (NPs) were
prepared by injecting precursors into a hot reaction solution. The size of
Au and Fe$3O4 particles can be controlled by changing the injection
temperature. UV--Vis spectra show that the surface plasma resonance band of
Au--Fe$3O4 heterodimeric NPs was evidently red-shifted compared
with the resonance band of Au NPs of similar size. The as-prepared
heterodimeric Au--Fe$3O4 NPs exhibited superparamagnetic properties
at room temperature. The Ag--Fe$3O4 heterodimeric NPs were also
prepared by this synthetic method simply using AgNO$3 as precursor
instead of HAuCl4. It is indicated that the reported method can be
readily extended to the synthesis of other noble metal conjugated
heterodimeric NPs. |
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| Keywords: | heterodimeric structure monodisperse Au--Fe$3O4
nanoparticles |
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