Tricobalt Tetraoxide CAS 1308-06-1

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  • Appearance: Black powder
  • Purity: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: Tricobalt Tetraoxide Supplier & Manufacturer

Basic Info

What is Tricobalt Tetraoxide?

Cobalt tetroxide, chemical formula Co3O4. Molecular weight 240.80. Black powder or gray cubic crystal. The relative density is 6.07, and when heated to 900-950°C, it will lose oxygen and form cobalt oxide. Exposure to the air absorbs water, but does not form hydrates. Insoluble in water, slightly soluble in nitric acid to release oxygen, soluble in hydrochloric acid to release chlorine gas, soluble in sulfuric acid.

It dissolves in sodium hydroxide melt or boiling solution to form a blue solution, which can absorb a lot of oxygen, but does not produce dicobalt trioxide. Hygroscopic. It is easily reduced to metal cobalt by carbon, carbon monoxide or hydrogen. Used in the production of metal cobalt, cobalt catalysts, enamel, ceramic pigments, semiconductors, grinding wheels and cobalt salts, as well as oxidants. Main features: Uniform particle size, complete spherical particles, good dispersion. Scope of application: varistors, thermistors, zinc oxide arresters, kinescope glass bulbs, lithium-ion batteries and other industries.

Tricobalt Tetraoxide Uses

  1. Cobalt tetroxide is mainly used as battery material, magnetic material, thermistor, etc; It can also be used as a catalyst machine to make enamel, and can also be used for the preparation of cobalt oxide and cobalt salts.
  2. Cobalt Oxide (II, III) is an oxide of cobalt. It has applications in enamel, semiconductor, as well as grinding wheels. As a crucial not natural material, it can be used in areas such as catalysis, superconductors, ceramics, etc.
  3. Tricobalt tetraoxide is utilized as a stimulant and driver provider, electrode active material, glass, porcelain colorants as well as pigments, chemical sector oxidants as well as natural synthesis drivers, advanced safety glasses as well as other filtering materials, temperature and gas sensors, in digital ceramics, lithium-ion battery electrode materials, magnetic products, electrochromic tools, enamel, and solar absorbers.
  4. Cobalt oxide nanoparticles can quickly get in cells and also might be utilized for hyperthermia, gene therapy, and also medicine distribution. Primarily used in energy storage fields such as lithium-ion batteries. It can also be used as a gas sensing unit to identify toluene, acetone, and various other toxic vapors.

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Application of Tricobalt Tetraoxide

CN201710317644.7 reports the preparation method and application of tricobalt tetroxide supported ruthenium catalyst, which relates to a preparation method of catalyst. The invention aims to solve the technical problems of poor stability and easy deactivation of existing Co3O4 catalysts.

The preparation method of tricobalt tetroxide supported ruthenium catalyst is carried out according to the following steps: one, RuCl solution, Co(NO3) 6H2O and deionized water are added in the beaker, stirred at room temperature to obtain a mixed solution; two, Na2CO3 10H2O is dissolved in deionized In water, stir at room temperature to obtain Na2CO3 solution; 3. Add Na2CO3 solution dropwise to the mixed solution obtained in step 1, adjust the pH value to 9.0-10, stir at room temperature after the dropwise addition, filter, wash with deionized water, dry, and calcinate , that is, tricobalt tetroxide supported ruthenium catalyst. The tricobalt tetroxide supported ruthenium catalyst prepared by the invention improves the catalytic activity, stability and water resistance of the catalyst through the interaction between Ru and Co3O4.

CN201110412709.9 provides a method for preparing cobalt tetraoxide nanocages and the application of the cobalt tetraoxide nanocages prepared by the method in lithium-ion batteries. The corresponding method includes dissolving a predetermined amount of potassium cobalt cyanate and polyvinylpyrrolidone in distilled water, Potassium cobaltcyanate and polyvinylpyrrolidone solution are obtained; the cobalt acetate solution is added dropwise to the potassium cobaltcyanate and polyvinylpyrrolidone solution, left to stand after magnetic stirring, and cobalt cobaltcyanate is obtained by centrifugation; The final cobalt cobalt cyanate is calcined in the air, the calcining temperatures are 400°C, 450°C and 550°C respectively, and tricobalt tetroxide nanocages are obtained after calcining. The dried cobalt cyanate is calcined in air for a predetermined time at a temperature of 650°C, and a mixture of cobalt tetroxide nanocages and cobalt tetroxide solid nanoparticles is obtained after calcination. The invention does not need high temperature and high pressure, and the manufacturing process is relatively simple, and the requirements for equipment are not high, only conventional equipment can be used, and large-scale production can be realized.

Preparation of Tricobalt Tetraoxide

The rapid development of the lithium-ion battery industry has driven the development of its cathode materials such as lithium cobaltate and other cobalt-based cathode materials, so the demand for cobalt-based cathode materials for lithium-ion batteries has also increased significantly. Cobalt tetroxide is the raw material of lithium cobaltate, the positive electrode material of lithium ion batteries. At present, cobalt tetroxide is generally prepared by using cobalt salt and hydroxide in a reaction kettle to prepare cobalt hydroxide particles, and then by calcining in a calciner to make cobalt hydroxide The particles react with oxygen in the air to produce spherical cobalt tetraoxide.

However, in the calcination stage, the cobalt hydroxide particles and the air that are introduced are relatively static, and the contact degree between the surface material and the internal material and the air is different, so there will be uneven oxidation. The surface material is easy to form tricobalt tetroxide, while the internal material It is prone to incomplete oxidation, and even some cobalt hydroxide particles have not been converted into cobalt oxide, so that the purity of the final spherical cobalt tetroxide is relatively low. The purity of the current finished product is generally about 95% on average, and the maximum is not more than 98%, the specific capacity of the produced lithium cobalt oxide is only about 145mAh/g, and the capacity of the produced battery is relatively small.

Because the purity of tricobalt tetroxide will directly affect the size of the specific capacity of lithium cobaltate, and ultimately affect the size of the battery capacity, how to reduce the content of cobalt hydroxide in the tricobalt tetroxide as much as possible, and improve the purity of tricobalt tetroxide is an urgent need for those skilled in the art at present Solved technical problems.

CN201210486483.1 provides a preparation method of doped spherical cobalt tetroxide to solve the problem that the purity of cobalt tetroxide prepared by the current preparation method of tricobalt tetroxide is low, which affects the electrochemical performance of the battery. Include the following steps:

  1. Prepare a mixed doping solution, doping element ions into the cobalt salt solution to form a mixed doping solution.
  2. Configure the hydroxide solution.
  3. Feeding, the doping mixed solution, hydroxide solution and air are passed into the reaction device at the same time, and the reaction is continuously stirred for 5-20 hours to prepare a doped spherical cobalt tetroxide suspension solution.
  4. Filtration, filtering the doped spherical cobalt tetroxide suspension solution to prepare a doped spherical cobalt tetroxide semi-finished product.
  5. Washing and drying, washing and drying the doped spherical cobalt tetroxide semi-finished product to obtain the finished doped spherical cobalt tetroxide.


  1. Cobalt(II,III) oxide – WikiPedia
  2. CN201710317644.7 Tricobalt tetroxide supported ruthenium catalyst, preparation method and application of tricobalt tetroxide supported ruthenium catalyst

Tricobalt Tetraoxide Supplier and Manufacturer

As a tricobalt tetraoxide supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best tricobalt tetraoxide raw materials to customers all over the world.

Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.

If you have a demand for tricobalt tetraoxide and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.

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