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1.
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. 相似文献
2.
B.H. Olaniyi G.A. Beer A. Fry J.A. Macdonald G.R. Mason A. Olin R.M. Pearce P.R. Poffenberger 《Nuclear Physics A》1982,384(3):345-352
We have measured the energies and linewidths of the pionic Kα X-rays for 20Ne and 22Ne using a natural liquid-neon target. The results are
20Ne | 22Ne | |
Neenergy (keV) | 239.12±0.14 | 230.49±0.88 |
width (keV) | 15.43±0.41 | 12.65±3.51 |