In-situ infrared spectrum reaction device in free radical shower atmosphere

Abstract

The invention provides an in-situ infrared spectrum reaction device in a free radical shower atmosphere. The in-situ infrared spectrum reaction device comprises a shell, a nozzle electrode, an observing window, two infrared optical path windows, a reaction tank main body, a polar plate and a first cable; a closed cavity is formed in the shell; one end of the nozzle electrode extends into the closed cavity from the top of the upper shell, the other end of the nozzle electrode is located outside the upper shell, electrode gas is introduced, and the nozzle electrode is connected with a high-voltage power supply; both the observing window and the two infrared optical path windows are arranged on the upper shell; the reaction tank main body is arranged in the closed cavity, a first groove is formed in the top of the reaction tank main body, a gap is formed between the reaction tank main body and the inner wall of the lower shell so as to form a gas channel surrounding the periphery of the reaction tank; the polar plate is arranged in the first groove and is located below one end of the nozzle electrode; one end of the first cable extends into the lower shell and is connected with the polar plate, and the other end of the first cable is grounded, wherein the lower shell is provided with two air pipe connectors which are respectively connected with an air inlet pipe and an air outletpipe. According to the in-situ infrared spectrum reaction device in the invention, the problem that the existing infrared spectrum detection technology is difficult to meet catalytic reaction characterization that active particles participates in is solved.

Description

technical field [0001] The invention relates to the technical field of diffuse reflection infrared spectrum analysis and testing, in particular to an in-situ infrared spectrum reaction device under a free radical shower atmosphere. Background technique [0002] Diffuse reflectance Fourier transform infrared spectroscopy is a testing technique that can track and characterize the structure of surface-adsorbed species. It can easily obtain the information of reaction intermediate states and products, and is an effective means to analyze the mechanism of catalytic reactions. [0003] With the development of catalytic technology, low-temperature plasma synergistic catalytic technology has been widely studied and applied, and the role of active particles in catalytic reactions is becoming more and more important. There are fewer devices that use infrared spectroscopy to characterize them in situ. The main reason is that high-voltage plasma discharge devices are often required to g...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides an in-situ infrared spectroscopic reaction device in a free radical shower atmosphere, which solves the problem that the existing infrared spectroscopic detection technology is difficult to meet the characterization of catalytic reactions involving active particles

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