Synthesis and Magnetic Properties of Nanoparticles of Fe-Co Alloys and Their Oxides Prepared by Chemical Vapor Condensation

材料科学技术（英文）, 2004, 20(4): 459-462.

^1, , ^2, , ^3, , ^4, , ^5,

1.Shenyang National Laboratory for Materials Science and International Centre for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;Korea Institute of Machinery and Materials, 66 Sangnam-Dong, Changwon, Kyun

2.Shenyang National Laboratory for Materials Science and International Centre for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

3.Korea Institute of Machinery and Materials, 66 Sangnam-Dong, Changwon, Kyungnam 641-010, Korea

4.Korea Institute of Machinery and Materials, 66 Sangnam-Dong, Changwon, Kyungnam 641-010, Korea

5.Korea Institute of Machinery and Materials, 66 Sangnam-Dong, Changwon, Kyungnam 641-010, Korea

基金项目: This work has been partly supported by the National Natural Science Foundation of China under projects(59725103 and 50171070)

Synthesis and Magnetic Properties of Nanoparticles of Fe-Co Alloys and Their Oxides Prepared by Chemical Vapor Condensation

Keywords： Fe-Co

Nanoparticles of Fe-Co alloys and their oxides with the particle size below 20 nm were prepared by chemical vapor condensation process. The pure Ar, Ar+1%O2, Ar+3%O2 and Ar+6%O2 were used as carrier gases, with iron carbonyl and cobalt carbonyl as the precursors. XRD patterns showed that Fe-Co metallic nanoparticles were synthesized by using pure Ar as carrier gas,and only metal oxides were obtained using Ar+(＞3)%O2 as carrier gas. The HRTEM images and TG-DTA curves were used to study the core-shell structure of the different nanoparticles. The nanoparticles obtained in pure Ar consist of black core and light shell with thickness of 2～4 nm. However, in the particles obtained in Ar+6%O2, the oxides core with visible lattice fringes are surrounded by thin shell.

参考文献

[1]	S Gangopadhyay;G C Hadjipanayis;B Dale;C.M.Sorensen, K.J.Klabunde, V.Papaefthymiou and A.Kostikas .[J].Physical Review B,1992,45:9778.
[2]	G C Hadjipanayis;G.A.Prinz.Sci Technol NanostrucMag Mater[M].New York:Plenum Press,1991
[3]	A S EdelsteinandR C Cammarata.Nanomaterials: Synthesis Properties and Application[M].Institute of Physics Publishing,London,1996
[4]	Z L Wang.Characterization of Nanophase Materials[J].WileyVCH Verlag GmbH Weinheim Germany,2000
[5]	Z D Zhang;J L Yu;J G Zheng;I.Skorvanek, J.Kovac, X.L.Dong, Z.J.Li, S.R.Jin, H.C.Yang, Z.J.Guo, W.Liu and X.G.Zhao .[J].Physical Review B,2001,64:024404.
[6]	Z D Zhaag;J G Zheng;I Skorvanek;G.H.Wen J.Kovac,F.W.Wang,J.L.Yu,Z.J.Li,X.L.Dong,S.R.Jin,W.Liu and X.X.Zhang .[J].Journal of Physics:Condensed Matter,2001,13:1921.
[7]	K Kim;G G Lee;H M Park;N.J.Kim.[M].Nano:Mater,1999:637.
[8]	C.J. Choi;X.L. Dong;B.K. Kim .CHARACTERIZATION OF Fe AND Co NANOPARTICLES SYNTHESIZED BY CHEMICAL VAPOR CONDENSATION[J].Scripta materialia,2001(8-9):2225-2229.
[9]	X. L. Dong;C. J. Choi;B. K. Kim .Structural and magnetic characterization of Fe nanoparticles synthesized by chemical vapor condensation process[J].Journal of Applied Physics,2002(9):5380-5385.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Synthesis and Magnetic Properties of Nanoparticles of Fe-Co Alloys and Their Oxides Prepared by Chemical Vapor Condensation

参考文献