Abstract
Two kinds of oil-based stabilized dispersion of Fe 3O 4 nanoparticles were prepared by thermal decomposition and surface modification of water-based Fe 3O 4 nanoparticles synthesized by coprecipitation method. Process conditions for preparing Fe 3O 4 nanoparticles by thermal decomposition were optimized. The effects of thermal decomposition temperature and aging time on particles size, morphology and magnetic properties were studied. Oil-based stabilized dispersion, particles size and morphology, specific saturation magnetization and surface properties were characterized by TEM, VSM and FTIR. Compared with Fe 3O 4 nanoparticles prepared by surface modification, it is found that the stability of Fe 3O 4 nanoparticles prepared by thermal decomposition is better, but its magnetic response property is worse.
Original language | English |
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Pages (from-to) | 50-52+54 |
Journal | Xiandai Huagong/Modern Chemical Industry |
Volume | 32 |
Issue number | 1 |
State | Published - Jan 2012 |
Keywords
- Fe O
- Nanoparticles
- Surface modification
- Thermal decomposition