Material for measuring microcosmic hot spots in microwave field and application and method thereof

Abstract

The invention discloses a material for measuring microcosmic hot spots in a microwave field, which is prepared by the following steps: dissolving ferric chloride pentahydrate and terephthalic acid in N, N-dimethylformamide, stirring and carrying out ultrasonic treatment, and carrying out hydrothermal reaction; the iron-based metal frame material particles are placed in a tubular furnace, the material is roasted in the air environment, and then the material is further roasted in the nitrogen environment; the preparation method comprises the following steps: uniformly dispersing nano carbon particles in an N, N-dimethylformamide solution; adding biphenyl tetracarboxylic acid; adding a mixed solution of europium nitrate hexahydrate and terbium nitrate hexahydrate; stirring, carrying out hydrothermal reaction in an oil bath pan, and carrying out centrifugal separation; after the reaction is finished, the obtained particle fluorescence spectrum characteristic peak is sensitive to the temperature change, so that the real temperature of the particle in the microwave heating process can be calculated by capturing the fluorescence spectrum. According to the invention, the problem of measuring the micro-scale temperature in a microwave field is solved, and quantitative measurement of the microwave-induced micro-scale local overheating phenomenon can be realized.

Description

technical field [0001] The invention belongs to the technical field of microwave chemistry, in particular to a material, application and method for measuring microscopic hot spots in a microwave field. Background technique [0002] Microwave technology is widely used in chemistry due to its fast and efficient heating method. During the chemical reaction process, electromagnetic waves will interact with catalyst particles such as carbon materials and ferrite to generate Joule heat and magnetoresistive heating, which will increase the temperature of the particles and generate micro-scale local hot spots on the surface of the catalyst. The creation of microscopic hotspots raises the local intrinsic temperature, thereby accelerating the reaction rate and changing the chemical reaction selectivity. However, the microscopic local hot spots induced by microwaves have not been accurately measured, which also limits the further application of microwave technology in the field of che...

AI Technical Summary

Problems solved by technology

[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Images