2results about "Nitrous acid" patented technology

The application belongs to the technical field of electrocatalysis, and discloses a bimetallic fluorinated metal organic framework catalyst, a preparation method thereof and application of the catalyst in active oxygen assisted membrane-free electrolytic ammonia oxidation for preparing nitrite, wherein the catalyst is prepared by self-assembly of Cu 2+ , Ni 2+ and a tetrakisfluorophthalic acid ligand through a solvothermal method, and there is a directional electron transfer effect between Cu and Ni. The application utilizes the Cu / Ni bimetallic electron synergistic effect to precisely regulate the d-band center of the catalyst, and a membrane-free electrolysis device is matched to save an expensive proton exchange membrane. The application provides a new efficient and feasible path for green, economical and scaled electrocatalytic synthesis of nitrite.

The application discloses a gaseous nitrous acid generating device and a generating method, which comprise a constant temperature control unit, a gas tank, a nitrite mixed solution tank, an atomizing nozzle, a gas cylinder and a detection unit. The constant temperature control unit is provided with the gas tank, the nitrite mixed solution tank and the atomizing nozzle. The input end of the atomizing nozzle is communicated with the nitrite mixed solution tank, and the spraying end is communicated with the gas tank. The atomizing nozzle is used for spraying the nitrite mixed solution in the nitrite mixed solution tank into the gas tank in a mist state. The gas tank is provided with an air inlet and an air outlet. The output end of the gas cylinder is communicated with the air inlet and the air outlet and then communicated with the detection unit. The application has the advantages that the customized glassware is cancelled, the generating device is simplified, the cost is reduced, the nitrite mixed solution is atomized by the atomizing nozzle, the gaseous nitrous acid is dispersed in the gas tank, and the output efficiency is improved.