Cobalt iron spinel
Cobalt iron oxide
CAS: 12052-28-7
Molecular Formula: CoFe2O4
Cobalt iron spinel - Names and Identifiers
| Name | Cobalt iron oxide |
| Synonyms | COBALT FERRITE IRON COBALT OXIDE Cobalt iron oxide Cobalt iron spinel Cobalt diiron tetroxide |
| CAS | 12052-28-7 |
| EINECS | 234-992-3 |
Cobalt iron spinel - Physico-chemical Properties
| Molecular Formula | CoFe2O4 |
| Molar Mass | 234.62 |
| Density | 5.3 g/cm3 |
| Water Solubility | Insoluble in water. |
| Appearance | Morphology Powder |
| Storage Condition | Room Temprature |
| MDL | MFCD00016018 |
| Use | Application of cobalt tetraoxydiferrate nanoparticles can be used in lithium ion batteries. Lithium-ion batteries have been used more and more due to their advantages of high energy density, high output voltage, no memory effect and no environmental pollution. Not only can it be applied to various portable electronic devices, but it has great application prospects as a power source for electric vehicles and energy storage equipment for new energy sources such as solar and wind energy. |
Cobalt iron spinel - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| TSCA | Yes |
Cobalt iron spinel - Nature
| Exposure Limits | ACGIH: TWA 5 mg/m3 OSHA: TWA 10 mg/m3; TWA 15 mg/m3; TWA 5 mg/m3 NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3 |
| EPA chemical information | Cobalt iron oxide (CoFe2O4) (12052-28-7) |
Last Update：2024-04-10 22:29:15
Cobalt iron spinel - Uses and synthesis methods
Preparation
cobalt tetraoxodiferrate nanoparticles and a preparation method thereof, comprising: adding 30-60mg of ferrous chloride, 5-10mg of cobalt chloride, 10-20mg of polyacrylamide and 10-20ml of deionized water into a 100ml round bottom flask, stirring; adding 30-60mL of ethanol slowly dropwise into the obtained solution under magnetic stirring, adding 50-200 μL of 1M sodium hydroxide aqueous solution, and stirring for 1-2 hours, centrifuge at 5000~9000rpm for 8~10min; The obtained solid is 50 ~ 100oC vacuum dried for 8~12h; It is placed in a box furnace and calcined at 400~450 ℃ for 2~3h to obtain multi-layer cobalt tetraoxydiferrate nanoparticles; The multi-layer cobalt tetraoxydiferrate nanoparticles obtained by the present invention have good dispersibility, uniform particle size and stable structure; the multi-layer structure cobalt tetraoxydiferrate nanoparticles prepared by the method of the present invention have the characteristics of large capacity, good cycle performance and long service life, and the capacity remains above 1000mAh/g after 500 charge and discharge (current density 1A/g).
Production method
The reactor is a three-neck bottle with an electromagnetic stirrer, a condenser tube and a separatory funnel. In the reaction bottle, 0.0800mol of iron powder and 0.0400mol of cobalt acetate are dissolved in 400mL of acetic acid solution (volume ratio 1: 3). The air in the reaction bottle is replaced with nitrogen, and the nitrogen enters the bottle through the intake pipe and is discharged through the condenser pipe. Under rapid stirring, gradually heat the temperature to reach the boiling point, so that the iron powder is completely dissolved. The oxalic acid solution prepared by dissolving 15.6g H2C2O4 · H2O in 100mL of water is placed in a separatory funnel, the oxalic acid solution is quickly added to the boiling acetate solution under stirring, and the grass in the separatory funnel is pickled with several milliliters of boiling water into a three-neck bottle to generate oxalate precipitation. The mixture is continuously heated and stirred for 10min before cooling. During the entire operation of the reaction, nitrogen is introduced for protection. The precipitates were separated in a glass sand core funnel, washed with water and dried with acetone. The obtained oxalate is slowly heated and decomposed with sufficient air at a heating temperature of about 600°C. The product obtained by decomposition is an extremely fine powder with poor crystallinity. Put this product into a platinum dish and burn it at 1000 ℃ to obtain a spinel structure with ideal chemical formula CoFe2O4.
Last Update：2024-04-10 22:29:15
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Product Name: Cobalt iron oxide Visit Supplier Webpage Request for quotationCAS: 12052-28-7
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Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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