Multifunctional spectrum and X-ray diffraction in-situ reaction chamber and application

Abstract

The invention relates to a multifunctional spectrum and X-ray diffractometer in-situ reaction chamber, which is characterized by comprising a negative electrode base provided with a base groove, two sides of which are provided with through holes for connecting gas / liquid; the lower end of the negative base accessory is connected with the negative base, two openings are formed in the side edge of the negative base accessory, one opening is a reference electrode interface, and the other opening is a gas / liquid circulation inlet; the positive electrode base accessory is arranged on the upper end face of the negative electrode base accessory, and the positive electrode base accessory is provided with an opening opposite to the negative electrode, a through hole serving as a gas / liquid outlet and a groove; and the positive electrode base is arranged on the upper end surface of the positive electrode base accessory, and a groove is formed in the positive electrode base. The multifunctional spectrum and X-ray diffractometer in-situ reaction chamber can be used for two-electrode and three-electrode system tests for catalysis and battery tests.

Description

technical field [0001] The invention belongs to the technical field of in-situ spectroscopy and in-situ XRD testing of energy materials, and in particular relates to an in-situ battery reaction chamber of a multifunctional spectroscopy and X-ray diffractometer and its application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] At present, in-situ spectroscopy and in-situ X-ray diffraction are used to detect the formation of intermediates on the catalyst surface and the change of the microstructure of the catalyst material. In the detection process, in addition to the instrument itself, the in-situ reaction chamber used to provide the catalytic reaction site has become the...

AI Technical Summary

Problems solved by technology

At present, commercialized in-situ reaction chambers have begun to be used in related research fields at home and abroad, but these in-situ reaction chambers have a single application, that is, they can only be applied to Raman spectroscopy, infrared spectroscopy or XRD detection respectively. For example, the electrode material to be tested in the in-situ XRD electrochemical reaction chamber must be infinitely close to the window to meet the requirements of XRD small-angle testing, while the current Raman spectroscopic in-situ electrochemical reaction chamber has an upper surface of the window to the electrode material to be tested. The distance is far beyond this requirement, so it is impossible to realize the complementary test mode that the reaction in one in situ reaction chamber can be used for both spectrum test and XRD test. Greatly increase the cost of in-situ testing

[0004] The specific performance is as follows: 1. The existing in-situ X-ray reaction chamber is mostly used for the detection of lithium and sodium ion battery systems. It does not have the ability to circulate the electrolyte and cannot be applied to metal-air batteries and carbon dioxide catalytic processes. real-time detection of

2. Some of the existing in-situ Raman reaction chambers have the function of electrolyte circulation, but the electrode surface is generally located at a depth of several millimeters below the liquid surface, and a large amount of electrolyte above the target monitoring surface will scatter and absorb the Raman laser, thus making The intensity of the laser will be greatly weakened when it penetrates the electrolyte, making detection difficult

3. The existing in-situ reaction chamber can only be used for a single in-situ test, and cannot be used for two or more in-situ characterization tests at the same time

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