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A kind of method for synthesizing MOF oxygen evolution reaction catalyst by deep eutectic solvothermal method

A low eutectic solvent, oxygen evolution reaction technology, applied in the direction of electrolysis components, electrodes, electrolysis process, etc., to reduce the difficulty of the reaction, improve the reaction efficiency, reduce the reaction vapor pressure and the effect of

Active Publication Date: 2022-07-15
山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心 +1
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Problems solved by technology

[0005] Aiming at the problems existing in the preparation of MOF oxygen evolution reaction catalysts by hydrothermal method in the prior art, the present invention provides a method for synthesizing MOF oxygen evolution reaction catalysts by deep eutectic solvothermal method to solve the above problems

Method used

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  • A kind of method for synthesizing MOF oxygen evolution reaction catalyst by deep eutectic solvothermal method
  • A kind of method for synthesizing MOF oxygen evolution reaction catalyst by deep eutectic solvothermal method
  • A kind of method for synthesizing MOF oxygen evolution reaction catalyst by deep eutectic solvothermal method

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Embodiment 1

[0035] (1) in the beaker, add ethylene glycol 120.2g (2.0mol) and choline chloride 558.5g (4.0mol) respectively, mix and heat to 80 ℃, make it melt into a clear transparent liquid to form a deep eutectic solvent;

[0036] (2) adding 0.5 g of nickel nitrate hexahydrate, 10.0 g of ammonium metavanadate and 8.0 g of phthalic acid to the deep eutectic solvent, and ultrasonically mixing to obtain a precursor;

[0037] (3) According to the method of step (1), another eutectic solution is prepared, and under heating, 0.5 g of nickel nitrate hexahydrate, 10.0 g of ammonium metavanadate, 0.8 g of ammonium fluoride and 10.0 g of urea are added to the eutectic solution. g, ultrasonically dissolved; then put it into the reactor, add nickel foam, and make the solution just soak the nickel foam;

[0038] (4) Seal the reaction kettle, put it in a 150°C oven for 8 hours, take it out from the oven after the reaction, and let it cool naturally for 12 hours; take out the cooled nickel foam, at thi...

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Abstract

The invention relates to a method for synthesizing MOF oxygen evolution reaction catalyst by a low eutectic solvothermal method, and belongs to the technical field of fine chemicals. A method for synthesizing MOF oxygen evolution reaction catalyst by deep eutectic solvothermal method, comprising the following steps: (1) preparing a deep eutectic solvent; (2) preparing Ni on foamed nickel 0.8 V 0.2 Layered double hydroxide nanoarrays; (3) Preparation of Ni 0.8 V 0.2 -MOF catalyst; wherein, the reactions of step (2) and step (3) are all carried out in a deep eutectic solvent. The present invention adopts a method for preparing three-dimensional Ni by using a deep eutectic solvothermal method. 0.8 V 0.2 ‑The easy way to MOF. In terms of synthesis method, it breaks through the limitation of traditional hydrothermal method and uses deep eutectic solvent as synthesis medium, which reduces chemical pollution, improves the solubility of reactants and reaction efficiency, and reduces reaction vapor pressure and reaction difficulty.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a method for synthesizing MOF oxygen evolution reaction catalyst by a deep eutectic solvothermal method. Background technique [0002] At present, due to the excessive consumption of fossil fuels, energy crisis and environmental pollution have become two major problems hindering development. Therefore, it is crucial to explore a clean and pollution-free energy source. As a sustainable clean energy, hydrogen is expected to replace traditional fossil fuels. Electrolysis of water provides us with an ideal way to produce pure hydrogen. But the anodic reaction in electrolyzed water, the oxygen evolution reaction (OER), often involves multiple proton-coupled electron transfer steps, resulting in very slow reactions and high overpotentials. In recent years, noble metal catalysts (such as IrO 2 and RuO 2 ) is the most widely used and also the most advanced OER cat...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/031C25B11/052C25B11/061C25B11/091C25B1/04
CPCC25B11/04C25B1/04Y02E60/36
Inventor 渠凤丽刘华伟王纲李奇冯继凡李进李乃朋
Owner 山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心
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