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A metal-organic framework based on co(ii) and its preparation method and application

A technology of metal-organic frameworks and organic ligands, applied in organic chemistry, cobalt-organic compounds, chemical instruments and methods, etc., can solve the problems of nano-sized inorganic compounds with single properties and expensive precious metals, and achieve long catalytic reaction time, The effect of short reaction time and mild reaction conditions

Inactive Publication Date: 2018-10-30
SHANDONG NORMAL UNIV
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Problems solved by technology

[0005] In order to overcome the defects of expensive noble metals and single properties of nanometer-sized inorganic compounds in the existing electrocatalytic water oxidation reaction materials, the present invention provides a metal-organic framework based on Co(II) and its preparation method and application

Method used

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  • A metal-organic framework based on co(ii) and its preparation method and application
  • A metal-organic framework based on co(ii) and its preparation method and application
  • A metal-organic framework based on co(ii) and its preparation method and application

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Embodiment Construction

[0071] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0072] 1. Preparation of Organic Ligand L

[0073] Concrete preparation steps are as follows:

[0074] (1) 2,7-dibromocarbazole (6.5g, 20mmol) was dissolved in 40mL DMF, placed in a 250mL one-port bottle, slowly added sodium hydride (2.4g, 100mmol), and 1-bromo-2- Methoxyethane (3.83g, 25mmol) in DMF (10mL) was reacted to the end. Poured into 150mL of water, a white solid was precipitated, suction filtered, dried, and silica gel column chromatography (petroleum ether: dichloromethane = 2:1) yielded 7.12g of a white solid, with a yield of 92.95%.

[0075]

[0076] (2)N 2 Under atmosphere, intermediate (3.0g, 7.8mmol), imidazole (1.5g, 21.8mmol), CuI (0.6g, 3.12mmol), Cs 2 CO 3 (10.2g, 31.2mmol), 20mL of N,N-dimethylformamide solution, placed in a 250ml three-necked flask, and reacted at 120°C to the end. Pour in 100mL of water, filter w...

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Abstract

The invention discloses a Co(II) based metal organic framework, a preparation method and application thereof. The metal organic framework has a chemical structure of [(CoL4Cl).Cl.2H2O]n, wherein L is an organic ligand L, n is a nonzero natural number, the organic ligand L has a chemical structural formula shown as the specification, and is chemically named as 2, 7-bis(1-imidazolyl)-9-(2-methoxyethyl)carbazole). The Co(II) based metal organic framework prepared by the method provided by the invention overcomes the defects of expensive noble metals and single nature of nanoscale inorganic compound in existing electro-catalytic oxidation reaction materials.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a Co(II)-based metal-organic framework and its preparation method and application. Background technique [0002] A catalyst is a substance that changes the rate of a reaction without changing the overall standard Gibbs free energy of the reaction. The effect of a catalyst in a chemical reaction is called catalysis. Catalysts are also called catalysts in industry. The composition, chemical properties and quality of the catalyst itself do not change before and after the reaction; its relationship with the reaction system is like the relationship between a lock and a key, with a high degree of selectivity (or specificity). [0003] With the rapid increase of global population and rapid economic development, problems such as energy shortage and environmental pollution have become increasingly prominent, and it has become increasingly important to find alter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D403/14C07F15/06B01J31/22C25B11/06
CPCB01J31/1815B01J2531/0213B01J2531/0241B01J2531/845C07D403/14C07F15/065C25B11/075
Inventor 刘启奎潘宏韩淑英
Owner SHANDONG NORMAL UNIV
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