Potassium Hexacyanocobaltate(III) CAS 13963-58-1

1. Preparation of Negative Electrode Materials for Lithium ion Batteries:
Plays a key role in the research and preparation of negative electrode materials for lithium-ion batteries. Taking the preparation of negative electrode materials with excellent performance as an example, researchers first co precipitate potassium cobalt cyanide with manganese salts. During this process, cobalt ions interact with manganese ions in manganese salts under specific conditions, forming precipitates with specific structures. Subsequently, the precipitate is pretreated with ammonia solution, which can adjust the surface properties and structure of the precipitate, creating favorable conditions for the subsequent calcination process. After calcination treatment, the precipitate is transformed into carbon coated MnOCo particles.

The high-temperature cycling performance is also excellent, with minimal capacity degradation after multiple charge and discharge cycles in high-temperature environments; At the same time, the volume expansion effect is small, effectively avoiding electrode structure damage caused by volume changes and extending the service life of the battery. Moreover, the preparation process is relatively simple, does not require complex equipment and harsh conditions, and is suitable for large-scale applications, providing strong support for the commercial production of lithium-ion batteries.

Subsequently, the precursor was calcined under air conditions. During the calcination process, a series of chemical reactions occur in the precursor, causing changes in its structure and composition, ultimately resulting in the formation of cobalt trioxide particles. Further calcination of cobalt trioxide particles with phosphorus source under inert gas conditions. An inert gas environment can prevent the oxidation of cobalt trioxide particles at high temperatures, ensuring the smooth progress of the reaction. After this series of reactions, cobalt phosphide is finally obtained. Cobalt phosphide has excellent catalytic performance for oxygen evolution reactions and has important application prospects in fields such as electrolysis of water for hydrogen production. The method of preparing cobalt phosphide through it provides an effective way to obtain high-performance electrocatalytic materials.

In the mixing process, indium ion reacts with cobalt cyanide ion to form an In (III) – Co (III) cyano coordination polymer hydrogel. This hydrogel has a unique three-dimensional network structure, which provides a basis for the subsequent preparation process. Then, the hydrogel system was used as the precursor, and sodium borohydride was added as the reducing agent for the reaction. Sodium borohydride has strong reducibility, which can reduce metal ions in the hydrogel to metal simple substances, and form nano porous structure at the same time. After a series of treatments, nano porous indium powder is finally obtained. This preparation method cleverly utilizes its reaction characteristics with indium salts, providing a new approach for the preparation of high-performance negative electrode materials for lithium/sodium ion batteries.

Are applied to the precursor to obtain double metal cyanide catalysts with high specific surface area and active sites. This catalyst exhibits excellent catalytic performance in chemical selective reduction amination of carbonyl compounds and aromatic amines, ring opening polymerization of epichlorohydrin, and coupling reactions with aqueous epoxides. In the reductive amination reaction between carbonyl compounds and aromatic amines, this catalyst can selectively promote the progress of the reaction, improve the yield and selectivity of the product; In the ring opening polymerization reaction of epichlorohydrin, the polymerization process can be effectively controlled to obtain polymers with specific structures and properties; In the coupling reaction with aqueous epoxides, it can also play a good catalytic role, providing a new method and technology for organic synthesis.

1. Preparation of Metal Organic Framework Materials (MOFs)
Potassium hexacyanocobaltate(III) also has important applications in the preparation of metal organic framework materials. Metal organic framework materials are porous crystalline materials formed by self-assembly of metal ions and organic ligands. They have high specific surface area, adjustable pore structure, and excellent physical and chemical properties, and have potential applications in energy storage, catalysis, sensing, and other fields.

Taking the preparation of metal organic framework materials containing multiple metal elements as an example, first mix and stir them with other metal salts such as potassium ferrocyanide and solvents. During the stirring process, metal ions interact with cyanide ions and solvent molecules, gradually forming metal organic framework intermediates containing multiple metal elements.

2. Preparation of Nanoporous Materials
In addition to nano porous indium powder, it can also be used to prepare other types of nano porous materials. Nanoporous materials have high specific surface area and excellent physical and chemical properties, and have broad application prospects in fields such as adsorption, separation, and catalysis.

For example, by reacting with other metal salts and organic ligands, nano porous metal organic framework materials with specific pore structures and surface properties can be prepared. This material can control the size and shape of pores by adjusting reaction conditions and raw material composition, thereby achieving selective adsorption and separation of different molecules.