论文信息 - Synthesis and properties of iron ferrofluids

Synthesis and properties of iron ferrofluids

Abstract We study the preparation and properties of metallic iron particles, synthesized by thermal decomposition of Fe(CO) 5 in the presence of a stabilizer. By varying the iron carbonyl/polymer ratio, the particle size can be varied from 2 to 10 nm. Particles are characterized by magnetization measurements, transmission electron microscopy (TEM), small angle X-ray scattering and cryo-TEM. Cryo-TEM pictures show linear structures of particles. From susceptibility measurements, it is seen that particles oxidize fast on exposure to air.

[1] A. Philipse,et al. Controlled (seeded) growth of monodisperse sterically stabilised magnetic iron colloids , 2000 .

[2] R. Massart,et al. Preparation of aqueous magnetic liquids in alkaline and acidic media , 1981 .

[3] T. W. Smith,et al. The structure, magnetic characterization, and oxidation of colloidal iron dispersions , 1979 .

[4] Thomas W. Smith,et al. Colloidal iron dispersions prepared via the polymer-catalyzed decomposition of iron pentacarbonyl , 1980 .