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Bimetal-coordinated metal organic framework material as well as preparation method and application thereof

A technology of metal-organic framework and bimetal, which is applied in the field of bimetallic coordinated metal-organic framework materials and its preparation, to achieve the effects of enhanced electronic coupling, good electrical conductivity and magnetic coupling performance, and good electromagnetic properties

Active Publication Date: 2022-05-10
GUANGDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the synthesis of porous coordination polymers with high electrical conductivity and special magnetic properties remains highly challenging.

Method used

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  • Bimetal-coordinated metal organic framework material as well as preparation method and application thereof
  • Bimetal-coordinated metal organic framework material as well as preparation method and application thereof
  • Bimetal-coordinated metal organic framework material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Weigh the ligand and metal chloride salt into the reaction container; add the mixed solution of DMF and water into the container, mix it evenly with ultrasonic waves and heat it in an oven to obtain some black powder; after cooling, collect the product by centrifugation and wash it with DMF , water, and EtOH to wash the black solid product several times, and then dry it in a vacuum oven to obtain a bimetallic coordinated metal-organic framework material.

Embodiment 2

[0071] Synthesis of CoNi-DMBD: Weighing H 4 Add DMBD (0.0188mmol), nickel chloride hexahydrate (0.0211mmol) and cobalt chloride hexahydrate (0.0211mmol) into a glass tube (outer diameter 10mm, inner diameter 8mm); add 0.2mL DMF and 0.8mL water into the tube respectively , then seal the glass tube with an oxyhydrogen flame, mix it uniformly with ultrasonic waves, and heat it in an oven at 120°C for 72 hours to obtain some black powder; after cooling, open the glass tube, collect the product by centrifugation, and wash the black solid with DMF, water, and EtOH The product was dried several times, and then dried in a vacuum oven at 60° C. to obtain a bimetallic coordinated metal-organic framework material.

Embodiment 3

[0073] Synthesis of Fe-dfdmt: Weighing H 4 Add dfdmt (0.0188mmol) and ferric chloride hexahydrate (0.0376mmol) into a glass tube (outer diameter 10mm, inner diameter 8mm); add 0.3mL DMF and 0.6mL water into the tube respectively, and then seal the glass tube with an oxyhydrogen flame, After ultrasonic mixing, heat in an oven at 60°C for 120 hours to obtain some black powder; after cooling, open the glass tube, collect the product by centrifugation, wash the black solid product with DMF, water, and EtOH several times, and then place it in a vacuum at 60°C After drying in a drying oven, a bimetallic coordinated metal-organic framework material is obtained.

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Abstract

The invention discloses a bimetallic-coordinated metal organic framework material and a preparation method and application thereof, and the bimetallic-coordinated metal organic framework material is characterized in that ligands containing soft groups and carboxyl groups and coordinated metal ions are assembled into a structure which is divided into a covalent charge carrier layer and a charge storage ion layer in space and function; the electron coupling effect between the two functional layered areas is enhanced through the conjugation effect, and the material is endowed with unique electromagnetic performance; the material shows good conductivity and magnetic coupling performance, and can be used as a superconducting material, a conductive material, a semiconductor or an electromagnetic material. According to the preparation method, a solvothermal method or a template method is used for solving the problems that a structure with space and function divided into a covalent charge carrier layer and a charge storage ion layer cannot be assembled due to the fact that coordination groups in ligands are relatively close, or effective interaction among different metal coordination layers cannot be formed due to the fact that the coordination groups in the ligands are relatively far.

Description

technical field [0001] The invention belongs to the technical field of metal organic framework materials, and in particular relates to a bimetallic coordinated metal organic framework material and its preparation method and application. Background technique [0002] Coordination polymers (CPs) are structures of infinite chains or networks in one, two, and three dimensions, composed of metal ions or metal clusters and organic ligands through coordination bonds. Porous coordination polymers, metal-organic frameworks (MOFs), have been rapidly developed in the past 30 years, and their structures, properties, and functions can be designed and tuned by changing a rich variety of organic ligands, metal centers, and topologies. , so that it can exert its application potential in the fields of catalysis, sensing, gas storage and separation. However, the reported three-dimensional porous coordination polymers exhibit extremely low electrical conductivity and weak magnetic coupling du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00
CPCC08G83/008C07C323/62C07F19/005C07F15/065C07F15/045C07C51/418
Inventor 何军胡洁颖唐良铭刘智清叶新合张耿元徐政涛
Owner GUANGDONG UNIV OF TECH
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