Enhanced Oxidation Resistance of Iron Nanoparticles via Surface Modification in Chemical Vapor Condensation Process

材料科学技术（英文）, 2010, 26(4): 367-370.

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

1.Korea Institute of Materials Science, Changwon, 641-831, Korea

2.Korea Institute of Materials Science, Changwon, 641-831, Korea

3.Department of Electronic Materials, Sunmoon University, Asan, 336-708, Korea

基金项目: the National Core Research Center Program from the Ministry of Science & Technology and the Korea Science & Engineering Foundation(R15-2006-022-03001-0)

Enhanced Oxidation Resistance of Iron Nanoparticles via Surface Modification in Chemical Vapor Condensation Process

Dong-Won Lee ^1, , Ji-Hun Yu ^2, , Taesuk Jang ^3, ,

1.Korea Institute of Materials Science, Changwon, 641-831, Korea

2.Korea Institute of Materials Science, Changwon, 641-831, Korea

3.Department of Electronic Materials, Sunmoon University, Asan, 336-708, Korea

Keywords： Powder technology

In order to prevent the oxide formation on the surface of nano-size iron particles and thereby to improve the oxidation resistance in ordinary condition, iron nanoparticles synthesized by a chemical vapor condensation method were directly soaked in hexadecanethiol solution to coat them with a polymer layer. Oxygen content in the polymer-coated iron nanoparticles was significantly lower than that in usual air-passivated particles possessing iron-core/oxide-shell structure. Accordingly, oxidation resistance of the polymer-coated particles at an elevated temperature below 130℃ in air was 10-40 times higher than that of the normally passivated particles.

参考文献

[1]	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.
[2]	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.

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Enhanced Oxidation Resistance of Iron Nanoparticles via Surface Modification in Chemical Vapor Condensation Process

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