通过微波辅助polyol法合成多种形态的镍纳米晶体,采用X射线衍射(XRD)、透射电子显微镜(TEM)分析样品的结构和微观形貌,使用振动样品磁强计(VSM)研究镍纳米晶体的磁性能.XRD结果显示,样品为面心立方结构;TEM结果显示通过控制实验条件,可以得到单分散的球状、链状、头发状镍纳米晶体.VSM分析结果,表明头发状镍纳米晶体具有典型的铁磁性.
参考文献
| [1] | Fiorani D;Testa A M;Tronc E .Spin freezing in maghemite nanopartiele systems[J].Journal of Magnetism and Magnetic Materials,2001,226:1942-1944. |
| [2] | Kodama R H;Berkowitz A E;Mcniff E J Jr et al.Surface spin sisorder in NiFe2O4 nanoparticles[J].Physical Review Letters,1996,77(02):394-397. |
| [3] | Biasi E D;Ramos C A;Zysler R D et al.Large surface magnetic contribution in amorphous ferromagnetic nanoparticles[J].Physical Review B:Condensed Matter,2002,65:144416-144423. |
| [4] | Bodker F.;Charles S.W.;Linderoth S.;Morup S. .Surface oxidation of cobalt nanoparticles studied by Moessbauer spectroscopy[J].Journal of Magnetism and Magnetic Materials,1999(0):18-19. |
| [5] | Sekino T;Nakajima T;Niihara K .Mechanical and magnetic properties of nickel dispersed alumina.based nanocomposite[J].Materials Letters,1996,29:165-169. |
| [6] | Xiang-Cheng Sun;Xing-Long Dong .Magnetic properties and microstructure of carbon encapsulated Ni nanoparticles and pure Ni nanoparticles coated with NiO layer[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2002(5):991-1004. |
| [7] | Meiklejohn W H;Bean C P .New magnetic anisotropy[J].Physical Review,1956,102(05):1413-1414. |
| [8] | Yao Y D;Chen Y Y;Tai M F et al.Magnetic anisotropy ef fects in nano-cluster nickel particles[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1996,217/218:281-285. |
| [9] | Yanglong Hou;Song Gao .Monodisperse nickel nanoparticles prepared from a monosurfactant system and their magnetic properties[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2003(7):1510-1512. |
| [10] | Nikitenko SI;Koltypin Y;Palchik O;Felner I;Xu XN;Gedanken A .Synthesis of highly magnetic, air-stable iron iron carbide nanocrystalline particles by using power ultrasound[J].Angewandte Chemie International Edition,2001(23):4447-4449. |
| [11] | Palchik O;Avivi S;Pinkert D et al.Prerartion and characterization of Ni/NiO composite using microwave irradiation and sonication[J].Nano-Structured Materials,1999,11(03):415-420. |
| [12] | Vaidhyanathan B;Rao K J .High microwave susceptibility of NaH2PO4@2H2O:rapid synthesis of crystalline and glassy phosphates with nasicon-type chemistry[J].Chemistry of Materials,1997,132:349-354. |
| [13] | Kenneth S. Suslick;Mingming Fang;Taeghwan Hyeon .Sonochemical Synthesis of Iron Colloids[J].Journal of the American Chemical Society,1996(47):11960-11961. |
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