Method for synthesizing MOF oxygen evolution reaction catalyst by using deep eutectic solvothermal method

Abstract

The invention relates to a method for synthesizing an MOF oxygen evolution reaction catalyst by using a deep eutectic solvothermal method, and belongs to the technical field of fine chemical engineering. The method for synthesizing the MOF oxygen evolution reaction catalyst by using the deep eutectic solvent thermal method comprises the following steps: (1) preparing a deep eutectic solvent; (2) preparing a Ni < 0.8 > V < 0.2 > layered double hydroxide nano array on the foamed nickel; and (3) preparing a Ni < 0.8 > V < 0.2 >-MOF catalyst, wherein the reaction in the step (2) and the reaction in the step (3) are both carried out in the eutectic solvent. The invention adopts a simple and convenient method for preparing three-dimensional Ni0.8V0.2-MOF by using the deep eutectic solvothermal method. In the aspect of the synthesis method, the limitation of a traditional hydrothermal method is broken through, the eutectic solvent is used as a synthesis medium, the chemical pollution is reduced, and the solubility of reactants and the reaction efficiency are improved; and the reaction vapor pressure and the reaction difficulty are reduced.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a method for synthesizing an 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 very important to explore a clean and pollution-free energy source. As a sustainable and clean energy, hydrogen is expected to replace traditional fossil fuels. Electrolysis of water provides us with an ideal route to produce pure hydrogen. However, the anodic reaction in electrolyzed water, namely the oxygen evolution reaction (OER), often involves multiple proton-coupled electron transfer steps, resulting in very slow reaction rates and high overpotentials. In recent years, noble metal catalysts (such as IrO 2 and RuO 2 ) is the most widely used a...

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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

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