Magnetic Iron Oxide Nanoparticles Prepared by Spray Pyrolysis-oxidation of Iron Pentacarbonyl
WANG Xin-xing1,2, ZHANG Bao-lin1,2, WANG Xing-zhan1,2, FENG Ling-yun1,2
1. State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology, Guilin 541004, Guangxi, China;
2. College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
Abstract：γ-Fe2O3 nanoparticles were synthesized via spray pyrolysis-oxidation of iron pentacarbonyl (Fe(CO)5)containing triethylene glycol(TREG)and trioctylphosphine oxide(TOPO)in atomizing liquid, and containing carboxyl-monomethoxypoly(ethy1ene glycol)(MPEG-COOH)in collecting liquid. The effects of two-stage heating and single-stage heating on the morphologies, size and dispersing properties of γ-Fe2O3 nanoparticles were investigated. The effects of temperature on crystallinities,morphologies and magnetic properties of γ-Fe2O3 nanoparticles were analyzed. The results show that the crystallinities of the synthesized γ-Fe2O3 nanoparticles increase with the increasing of temperature. MPEG-COOH is modified on the surface of γ-Fe2O3 nanoparticles. In single-stage heating the γ-Fe2O3 nanoparticles synthesizing at 360, 390, 420℃ and 450℃ are superparamagnetic at 300K with saturation magnetization of 30, 37, 41, 71A·m2·kg-1, respectively. The dispersing properties of γ-Fe2O3 nanoparticles synthesizing in single-stage heating are better than those of γ-Fe2O3 nanoparticles synthesizing in two-stage heating.
王新星, 张宝林, 王行展, 冯凌云. 雾化热分解-氧化五羰基铁制备磁性氧化铁纳米粒子[J]. 材料工程, 2014, 0(8): 51-54.
WANG Xin-xing, ZHANG Bao-lin, WANG Xing-zhan, FENG Ling-yun. Magnetic Iron Oxide Nanoparticles Prepared by Spray Pyrolysis-oxidation of Iron Pentacarbonyl. Journal of Materials Engineering, 2014, 0(8): 51-54.
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2014, Vol. 0 
