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Organic cobalt complex and preparation method thereof

A technology of complexes and organic cobalt, applied in cobalt organic compounds, organic compounds/hydrides/coordination complex catalysts, organic chemistry, etc., can solve the problem of formation research, energy storage and catalytic technology and other problems, to achieve the effects of catalytic process promotion, easy large-scale production and preparation, and good repeatability

Pending Publication Date: 2022-03-29
JILIN UNIV +1
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  • Claims
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Problems solved by technology

[0003] However, none of the above methods has formed research on the application of electricity to energy storage in electrocatalysis, and there are few mentions of electricity to energy storage to catalytic technology. Electrochemical energy storage itself can achieve water splitting and metering in the process of catalysis. At the same time, it can further increase the stability and recyclability of the finished product, and further improve the cost performance for industrial production. It abandons the complicated production process and simplifies the process. Therefore, the electrochemical energy storage is used to catalyze the reaction and improve the stability of the finished product. Under the technical field of nature, to synthesize cobalt complexes

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  • Organic cobalt complex and preparation method thereof
  • Organic cobalt complex and preparation method thereof
  • Organic cobalt complex and preparation method thereof

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Embodiment 1

[0036] Example 1: Please refer to Figure 1 to Figure 7 :

[0037] The present invention proposes an organic cobalt complex and a preparation method thereof, comprising: a cobalt complex of an organic ligand, specifically as follows:

[0038] S1. Dissolve the divalent cobalt source and the organic ligand I in the aqueous solution, and stir at 40-80°C until there are no obvious solid particles; the molar ratio of the cobalt source and the organic ligand I is 1:10 to 10:1 , the concentration of cobalt source is 0.01M-100M;

[0039] S2. Under stirring conditions, add an appropriate amount of hydrogen peroxide at a certain temperature; wherein the temperature is 0-80°C, and the concentration of hydrogen peroxide is greater than 0.1%;

[0040] S3. Continue to stir, and add an appropriate amount of inorganic acid at a certain temperature; wherein the temperature is 0-80°C, and the concentration of the inorganic acid is greater than 0.1M;

[0041] S4. Under stirring conditions, pl...

Embodiment 2

[0076] Preparation of terpyridine-complexed cobalt complexes by solution method:

[0077] Dissolve 39mmol bipyridine complex cobalt complex in 10mL 80°C secondary water, stir until completely dissolved;

[0078] Continue to add 8 mmol of bipyridine, stir until the solution turns from purple to yellow, and heat the solution to 90°C. When crystals are precipitated in the solution, stop heating.

[0079] Add 15mL of acetone, stir and separate by suction filtration, and rinse with acetone for 3 times;

[0080] A sample of the resulting solid was dried overnight at room temperature.

[0081] The obtained bipyridine complex cobalt complex crystal is a pure-phase trivalent terpyridine complex cobalt complex doped with a small amount of monomer, and its oxidation-reduction potential is about 0.12Vvs.Ag|AgCl|KCl, and the results are as follows figure 1 and figure 2 shown.

[0082] The difference between this embodiment and Embodiment 1 is that figure 1 and 2 It is shown that the...

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Abstract

The invention provides an organic cobalt complex and a preparation method thereof, and relates to the technical field of chemical synthesis, the organic cobalt complex comprises an organic ligand cobalt complex, and the preparation method comprises the following specific steps: jointly dissolving a divalent cobalt source and an organic ligand I in an aqueous solution, and stirring at 40-80 DEG C until no obvious solid particles exist; wherein the feeding molar ratio of the cobalt source to the organic ligand I is (1: 10)-(10: 1), and the concentration of the cobalt source is 0.01-100M; adding a proper amount of hydrogen peroxide at a certain temperature under a stirring condition; the concentration of hydrogen peroxide is greater than 0.1%; continuously stirring, and adding a proper amount of inorganic acid at a certain temperature; wherein the temperature is 0-80 DEG C, and the concentration of the inorganic acid is greater than 0.1 M; under a stirring condition, heating in a water bath or an oil bath until the solution is almost evaporated; adding a certain amount of organic solvent, stirring, separating crystal particles, and washing with the organic solvent for more than one time; and drying the obtained solid sample to obtain the required organic ligand I coordination cobalt complex. The ionic couple can be used as a charge transfer carrier for hydrogen production by photocatalytic decomposition of water.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to an organic cobalt complex and a preparation method thereof. Background technique [0002] Under the existing technology, the synthesis method of cobalt complexes is usually prepared by adding inorganic acid, hydrochloric acid, etc., such as Chinese patent CN108997774A, or using the method of Chinese patent CN101767037A to form the final compound by solid phase synthesis. Improve the quality of the finished product and improve the catalytic effect. [0003] However, none of the above methods has formed research on the application of electricity to energy storage in electrocatalysis, and there are few mentions of electricity to energy storage to catalytic technology. Electrochemical energy storage itself can achieve water splitting and metering in the process of catalysis. At the same time, it can further increase the stability and recyclability of the finished product,...

Claims

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Application Information

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IPC IPC(8): C07F15/06C01B3/04B01J31/22C01B13/02
CPCC07F15/065B01J31/1815C01B3/042C01B13/0207B01J2531/845Y02E60/36
Inventor 徐丽粉李灿李仁贵刘钢赵越
Owner JILIN UNIV
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