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Synthesis method and application of Ni (II)-based metal organic framework material

A technology of organic framework and synthesis method, applied in the direction of electrolytic organic production, electrolytic components, electrolytic process, etc., can solve problems such as poor electrical conductivity, and achieve the effects of low temperature and time, high yield, and high-efficiency electrocatalytic ethanol oxidation performance

Active Publication Date: 2022-01-07
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although MOFs materials show many advantages as electrocatalysts, there are also some problems, such as the disadvantage of poor electrical conductivity.

Method used

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  • Synthesis method and application of Ni (II)-based metal organic framework material
  • Synthesis method and application of Ni (II)-based metal organic framework material
  • Synthesis method and application of Ni (II)-based metal organic framework material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Under airtight conditions, weigh 0.01mmol organic ligand [1,3,5-trimethyl-2,4,6-tri(3',5'-dicarboxyphenyl)]benzene, 0.02mmol 1,4 -Bis(1-imidazolyl)benzene, 0.1mmol nickel nitrate, dissolved in a mixed solution of acetonitrile and water at a ratio of 1:1, added to a glass vial, and then added 0.1mL of 0.5M HNO 3 , adjust the pH = 4, ultrasonically obtain a mixed solution, and react in an oven at a temperature of 140 ° C for 72 hours, take it out and naturally cool to room temperature to obtain green blocky crystals, that is, Ni-MOF materials. The shape and size of the Ni-MOF prepared by this ratio and conditions are uniform, and the powder diffraction peak of the prepared sample is highly consistent with the diffraction peak of Ni-MOF simulated by single crystal data.

Embodiment 2

[0036] Under airtight conditions, weigh 0.01mmol organic ligand [1,3,5-trimethyl-2,4,6-tri(3',5'-dicarboxyphenyl)]benzene, 0.02mmol 1,4 - Bis(1-imidazolyl)benzene, 0.1mmol nickel nitrate, dissolved in a mixed solution of acetonitrile and water at a ratio of 1:1, added to a glass vial, and then added 0.5M HNO 3 , adjust the pH = 5, and obtain a mixed solution uniformly by ultrasonication, react in an oven at a temperature of 140°C for 72h, take it out and naturally cool to room temperature to obtain green blocky crystals, that is, Ni-MOF materials. The powder diffraction peaks of Ni-MOF prepared by this ratio and conditions are highly consistent with the diffraction peaks of Ni-MOF simulated by single crystal data.

Embodiment 3

[0038] Under airtight conditions, weigh 0.01mmol organic ligand [1,3,5-trimethyl-2,4,6-tri(3',5'-dicarboxyphenyl)]benzene, 0.02mmol 1,4 - Bis(1-imidazolyl)benzene, 0.1mmol nickel nitrate, dissolved in a mixed solution of acetonitrile and water at a ratio of 1:1, added to a glass vial, and then added 0.5M HNO 3 , adjust the pH = 6, ultrasonically obtain a mixed solution, and react in an oven at a temperature of 140 ° C for 72 hours, take it out and naturally cool to room temperature to obtain green blocky crystals, that is, Ni-MOF materials. The diffraction peaks of Ni-MOF powder prepared by this ratio and conditions are highly consistent with the diffraction peaks of Ni-MOF simulated by single crystal data.

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Abstract

The invention relates to synthesis of a Ni (II) metal organic framework material and an electro-catalysis ethanol oxidation performance thereof, and belongs to the field of catalysts. According to the invention, organic ligands [1, 3, 5-trimethyl-2, 4, 6-tri (3', 5'-dicarboxyphenyl)] benzene, 1, 4-bis (1-imidazolyl) benzene and nickel nitrate are subjected to self-assembly in a mixed solution of acetonitrile, deionized water and nitric acid to obtain the porous metal organic framework material. The MOF material crystal is a triclinic system and belongs to a P-1 space group. The metal organic framework material has the advantages that the metal organic framework material is simple in synthesis process, low in catalyst consumption, high in crystal purity, novel in structure and the like, and tests show that the catalyst has high catalytic performance in electro-catalysis alcohol oxidation.

Description

technical field [0001] The invention relates to a kind of [1,3,5-trimethyl-2,4,6-tri(3',5'-dicarboxyphenyl)]benzene as the main ligand, 1,4-bis( 1-imidazolyl) benzene is an auxiliary ligand, a transition metal nickel is a metal-organic framework material and a preparation method thereof, and the MOF, as an electrode material, exhibits excellent performance for ethanol oxidation (EOR). Background technique [0002] Due to the increasingly serious environmental pollution and the massive consumption of fossil fuels in today's society, people's demand for energy is increasing, and the development and promotion of new energy technologies are imminent. Fuel cells convert chemical energy into electrical energy through chemical reactions. Direct liquid fuel cells are promising renewable energy conversion and storage devices without environmental pollution, but the lack of efficient and low-cost anode catalysts hinders their practical application. Among various fuel cells, ethanol h...

Claims

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Application Information

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IPC IPC(8): C08G83/00C25B3/23C25B11/091
CPCC08G83/008C25B3/23C25B11/091Y02E60/50
Inventor 李东升孙亚亚吴亚盘伍学谦李双李永双杨慧颖刘彬吴涛
Owner CHINA THREE GORGES UNIV