Efficient electrochemical reactor of electro-catalysis in-situ hydrogen peroxide

Abstract

The invention discloses an efficient electrochemical reactor of electro-catalysis in-situ hydrogen peroxide. The reactor consists of a two-cavity reaction system and an external circuit. A solid polymer electrolyte membrane is arranged in the middle of the two-cavity reaction system and can separate a cathode reaction and an anode reaction. The two-cavity reaction system mainly comprises a cathode end plate, a cathode gas diffusion electrode, a cathode chamber, an ion exchange membrane, an anode chamber, an anode gas diffusion electrode and an anode end place from left to right. The external circuit consists of an ammeter, a voltmeter and a variable resistor. The reactor effectively improves a three-phase reaction interface and a reaction rate by utilizing the gas diffusion electrodes loaded with a catalyst. Electrolyte in the cathode and anode chambers for participating in the reaction can rapidly diffuse a reaction product in a solution, so that the reaction products are enriched and the concentration of the reaction product is improved. A current and the reaction speed can be adjusted by adjusting the variable resistor. The electrolyte at a cathode and at an anode can circulate under the action of a circulating pump to maintain a higher conductivity of the system and the high reaction rate of the electrode reaction.

Description

technical field [0001] The invention relates to an electrochemical reactor, in particular to a novel electrochemical reactor for generating hydrogen peroxide in situ with high-efficiency electrocatalysis. Background technique [0002] Hydrogen peroxide is an environmentally friendly strong oxidizing agent, chemical bleaching agent, and a series of important source products of peroxides. With the improvement of environmental protection requirements, it is widely used in chemical industry, medicine, food, electronics, environmental protection and other fields. It is replacing traditional potassium dichromate and potassium permanganate to become a new "clean oxidant". people's attention. The commonly used hydrogen peroxide is produced by the chemical anthraquinone method. In this method, an organic solvent containing 2-ethylanthraquinone is used as a working fluid, and hydrogen and oxygen are passed through to circulate between hydroquinone and quinone and hydrolyze. to get h...

AI Technical Summary

Problems solved by technology

With the development of nanotechnology, combined with nanotechnology and fuel cell electrode preparation technology, an environmentally friendly preparation method - the synthesis of hydrogen peroxide in a fuel cell reactor was proposed, which has the characteristics of green, energy saving, and environmental protection. It has attracted a large number of domestic and foreign researchers to study it, and with the country's emphasis on energy and environmental issues, many companies have also paid great attention to this technology, but there are few detailed reports on this reactor.

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