In situ infrared spectrum pool for studying gas-liquid-solid three-phase boundary

Abstract

An in situ infrared spectrum pool for studying a gas-liquid-solid three-phase boundary comprises a pool body with openings at two ends. A top cover is arranged at the upper end of the pool body, a base is arranged at the lower end of the pool body, a sealing ring is arranged between the top cover and an upper end port of the pool body, and a sealing ring is arranged between the base and the pool body. The in situ infrared spectrum pool is characterized in that the top cover is provided with a gas inlet pipe and a gas outlet pipe communicated with the pool body, the base is hollow and provided with infrared crystal, a hollow sealing gasket is arranged between the infrared crystal and the base, a thermocouple penetrates through the top cover to extend into the pool body, and a heating belt surrounds an outer wall of the pool body. The in situ infrared spectrum pool can enable users to study adsorption, desorption and reaction which occur on the gas-liquid-solid three-phase boundary.

Description

technical field [0001] The invention relates to an in-situ infrared spectrometer measuring device, in particular to an in-situ infrared spectrometer cell for studying gas-liquid-solid three-phase interface. Background technique [0002] According to the phase of the reaction system, heterogeneous catalysis can be divided into gas-solid catalysis, liquid-solid catalysis and gas-liquid-solid catalysis. Common gas-liquid-solid catalytic systems include liquid-phase hydrogenation and liquid-phase oxidation. Due to the complexity of the solid surface, the mechanism study of the simultaneous interaction between the solid surface and gas and liquid has been lack of effective research means. In situ infrared spectroscopy is an important analytical tool for studying reactions and phase transitions in solid materials themselves, as well as interactions between gases and solid materials. However, for the study of the catalytic reaction mechanism of the gas-liquid-solid three-phase in...

AI Technical Summary

Problems solved by technology

However, for the study of the catalytic reaction mechanism of the gas-liquid-solid three-phase interface system, especially the real catalyst surface, due to the strong absorption of infrared light by the liquid, conventional infrared spectroscopy methods are difficult to be used to study the gas-liquid-solid three-phase interface system. Adsorption, desorption, and reaction behaviors at the interface

Images