In-situ and quasi-in-situ heterogeneous catalytic electron paramagnetic resonance platform and using method

A technology of electron paramagnetic resonance and heterogeneous catalysis, which is applied in the direction of analysis using electron paramagnetic resonance, etc., can solve problems such as failure to achieve expected test results, uneven contact between gas and sample to be tested, and inability to perform tests.
CN112697832APending Publication Date: 2021-04-23LANZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LANZHOU UNIVERSITY
Publication Date
2021-04-23

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Abstract

The invention discloses an in-situ and quasi-in-situ heterogeneous catalysis electron paramagnetic resonance platform and a using method. The in-situ and quasi-in-situ heterogeneous catalysis electron paramagnetic resonance platform is composed of a gas distribution system device and an in-situ reaction tank device. The gas distribution system device consists of an external steel cylinder, a pressure reducer, a filter, a needle valve, an electronic pressure gauge, a mass flow meter, a one-way valve, an unloading valve, a temperature measuring point, a ball valve and a back pressure valve, and is assisted by a display panel for accurate control and real-time switching; and the in-situ reaction tank device is composed of a double-layer glass sleeve, a light source and a resonant cavity of the electron paramagnetic resonance spectrometer. The platform is simple to operate and convenient to disassemble, can be operated on the basis of an original electron paramagnetic resonance instrument, and can realize in-situ (the reaction temperature<=250 DEG C) / quasi-in-situ (the reaction temperature >250 DEG C) illumination / heating experimental conditions, and the pressure lower than 10Mpa of a reaction system.
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Description

technical field

[0001] The invention relates to the technical field of paramagnetic resonance, in particular to an in-situ and quasi-in-situ heterogeneous catalytic electron paramagnetic resonance platform and a using method. Background technique

[0002] The electron paramagnetic resonance spectrometer can provide atomic and electronic scale information, which is of great help to understand the reaction process. If the existing electron paramagnetic resonance spectrometer can be transformed into an in-situ device, it will be able to provide more information under in-situ conditions response information. Under the current level of instrument technology, the electron paramagnetic resonance spectrometer can only meet the test conditions in the air atmosphere and at a lower temperature, and it is still lacking in the in-situ reaction test under high temperature, high pressure and gas mobile phase.

[0003] For the electron paramagnetic resonance test, there are still some tech...

Claims

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