Trinuclear copper cluster-based coordination polymer as well as preparation method and application thereof

A technology of coordination polymers and copper clusters is applied in the field of metal-organic framework materials with high-efficiency hydrogen production performance and its preparation. Low requirements and the effect of improving catalytic activity

Active Publication Date: 2018-07-20
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the presence of strong electron-withdrawing groups-polyhalogenated groups, the electron cloud density of carboxyl groups decreases, and at the same time it shows an acidic enhancement effect, which may make it more difficult to form crystals with polyhalogenated phthalic acid and transition metals. Compounds, because the complex skeleton compound is generally difficult to obtain when the acidity is strong; secondly, due to the steric hindrance of the halo group, the carboxylic acid group is twisted compared with the plane of the benzene ring, forming a larger dihedral angle , forming a unique crystal structure

Method used

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  • Trinuclear copper cluster-based coordination polymer as well as preparation method and application thereof
  • Trinuclear copper cluster-based coordination polymer as well as preparation method and application thereof
  • Trinuclear copper cluster-based coordination polymer as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Get organic ligand tetrabromophthalic anhydride 0.04mmol, Cu(ClO 4 ) 2 ·6H 2O 0.08mmol, auxiliary nitrogen-containing ligand 3-amino-1,2,4-triazole 0.04mmol, potassium hydroxide 0.04mmol, deionized water 8ml, put into a polytetrafluoroethylene-lined stainless steel reactor at 120°C Reacted under pressure for 72 hours, then cooled naturally to room temperature for 24 hours, washed 3 times with deionized water to obtain sky blue Cu-MOFs crystals.

Embodiment 2

[0038] Get organic ligand tetrabromophthalic anhydride 0.04mmol, Cu(ClO 3 ) 2 ·6H 2 O 0.08mmol, auxiliary nitrogen-containing ligand 3-amino-1,2,4-triazole 0.04mmol, potassium hydroxide 0.08mmol, deionized water 8ml, put into a polytetrafluoroethylene-lined stainless steel reactor at 140°C Reacted under auto pressure for 60 hours, then naturally cooled to room temperature for 24 hours, washed 3 times with deionized water to obtain sky blue Cu-MOFs crystals.

Embodiment 3

[0040] Take organic ligand tetrabromophthalic anhydride 0.04mmol, Cu(CH3COO)2 H2O 0.16mmol, auxiliary nitrogen-containing ligand 3-amino-1,2,4-triazole 0.04mmol, potassium hydroxide 0.04mmol , 8ml of deionized water, put it into a polytetrafluoroethylene-lined stainless steel reactor at 100°C for 90 hours under self-pressure reaction, then naturally cooled to room temperature for 24 hours, washed 3 times with deionized water to obtain sky blue Cu-MOFs crystals.

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Abstract

The invention discloses preparation of a trinuclear copper cluster-based coordination polymer and application of the trinuclear copper cluster-based coordination polymer in electrocatalytic hydrogen evolution. The chemical molecular formula of the coordination polymer is [Cu3(L)2(ATA)OH(H2O)3.2H2O]n (L=C8H4Br4O4<2->, ATA=Triazol-3-amine);the coordination polymer belongs to a triclinic system and has a space group of Pi. The synthesis method concretely comprises the following steps: enabling tetrabromophthalic anhydride organic ligand, copper salt and a nitrogen-containing auxiliary ligand, i.e., triazol-3-amine (ATA) to be subjected to a reaction under the hydrothermal condition so as to obtain green strip-shaped crystals, and grinding and refining the obtained green strip-shaped crystalsto obtain the needed electrocatalytic material. The coordination polymer shows good catalytic activity in an electrocatalytic hydrogen evolution reaction (HER), and can be applied to the new energy fields such as electrocatalytic decomposition of water for hydrogen production.

Description

technical field [0001] The invention belongs to the technical field of crystalline materials, and in particular relates to a metal-organic framework material with high-efficiency hydrogen production performance and a preparation method thereof. Background technique [0002] Although the evolution of industry and the development of civilization have brought prosperity to the world, the lack of awareness of resource conservation and environmental protection has plunged us into a global energy crisis and environmental problems. At present, the energy used in the world is still dominated by non-renewable fossil fuels. These fuels have limited reserves, and when burned, they will release a large amount of greenhouse gases and toxic gases, causing great pollution to the environment. Therefore, in order to realize the prosperity and development of the world and the harmonious life of the people, it is urgent to seek new sustainable and clean energy. [0003] As a new type of renew...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C25B1/04C25B11/06
CPCC08G83/008C25B1/04C25B11/075Y02E60/36
Inventor 李永双李东升吴亚盘赵君张其春吴涛兰亚乾张健刘云凌
Owner CHINA THREE GORGES UNIV
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