Preparation method and use of spherical ferric oxide nanoparticles with controllable size
A ferric tetroxide and nanoparticle technology, which is applied in ferrous oxides, ferric oxide/ferric hydroxide, electrochemical generators, etc., can solve the complex system and does not involve the regulation of spherical ferric tetroxide particle size. and other problems, to achieve the effect of uniform size distribution, controllable particle size and uniform morphology.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] Weigh 0.8 g FeCl 3 ·6H 2 O and 1.6 g sodium oleate (C 17h 33 COONa) was dissolved in 30 mL of ethylene glycol, and magnetically stirred at room temperature for 2 hours to form a uniformly mixed orange-yellow solution; the mixed solution was added to a 50 mL polytetrafluoroethylene-lined reactor and sealed, and the reactor was placed in Constant temperature blast drying oven, 200 o C was kept warm for 24 hours; after the reaction kettle was naturally cooled to room temperature, the product was ultrasonically cleaned several times with absolute ethanol, and then placed in a vacuum oven for 80 o C drying to obtain black magnetic powder. The ferroferric oxide obtained under this condition is a spherical particle with a diameter of about 200 nm and a uniform particle size distribution.
[0031] Such as Figure 4 As shown, the ferric oxide nanocrystals prepared by the present invention have excellent cycle performance, and its specific capacity can still be stabilized a...
Embodiment 2
[0033] Weigh 0.8g FeCl 3 ·6H 2 O and 1.2 g sodium oleate (C 17 h 33 COONa) was dissolved in 30 mL of ethylene glycol, and magnetically stirred at room temperature for 2 hours to form a uniformly mixed orange-yellow solution; the mixed solution was added to a 50 mL polytetrafluoroethylene-lined reactor and sealed, and the reactor was placed in Constant temperature blast drying oven, 200 o C was kept warm for 24 hours; after the reaction kettle was naturally cooled to room temperature, the product was ultrasonically cleaned several times with absolute ethanol, and then placed in a vacuum oven for 80 o C drying to obtain black magnetic powder. The ferroferric oxide obtained under this condition is a spherical particle with a diameter of about 500 nm and a uniform particle size distribution.
Embodiment 3
[0035] Weigh 0.8 g FeCl 3 ·6H 2 O and 4.6 g sodium oleate (C 17 h 33 COONa) was dissolved in 30 mL of ethylene glycol, and magnetically stirred at room temperature for 2 hours to form a uniformly mixed orange-yellow solution; the mixed solution was added to a 50 mL polytetrafluoroethylene-lined reactor and sealed, and the reactor was placed in Constant temperature blast drying oven, 200 o C was kept warm for 24 hours; after the reaction kettle was naturally cooled to room temperature, the product was ultrasonically cleaned several times with absolute ethanol, and then placed in a vacuum oven for 80 o C drying to obtain black magnetic powder. The Fe3O4 obtained under this condition did not form a spherical structure, but was loose primary particles with a diameter of about 20 nm and a wide particle size distribution.
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More