Portable testing device of hydrogen storage material in-suit high-pressure hydrogenation and dehydrogenation synchronous radiation X ray powder diffraction

Abstract

The invention discloses a portable testing device of hydrogen storage material in-suit high-pressure hydrogenation and dehydrogenation synchronous radiation X ray powder diffraction. The portable testing device comprises commercially available gas cylinder high purity hydrogen, a gas draining pipe, filtering sheets, an oil-less vortex pump, manually operated high pressure valves, a sheathed heating wire, a platinum resistor, a metal hydride pressurizing vessel, hydrogen pressurizing alloy, a safety valve, a high pressure sensor, an electrically operated high pressure valve, a capacity expanding gas cylinder, high energy synchronous radiation X ray, a K-thermocouple, a single crystal Al2O3 capillary tube, a heating rod, an amorphous silicon surface detector, and a data acquisition and control system. The portable testing device is capable of solving problems in the prior art that high pressure hydrogenation under a pressure of 20MPa or higher is impossible to realized by similar devices, the quality of obtained diffraction spectrum data is poor, capillary tube recycling is impossible to realize, and the structure is large and is not portable. The portable testing device is capable of promoting acquaintance of people on hydrogen storage material hydrogenation and dehydrogenation mechanisms, and important significance on development of novel high pressure hydrogen storage material is achieved.

Description

technical field [0001] The invention relates to a test device for in-situ synchrotron radiation X-ray powder diffraction, in particular to a portable test device for in-situ high-pressure hydrogen absorption and desorption synchrotron radiation X-ray powder diffraction of hydrogen storage materials. Background technique [0002] Hydrogen energy has significant advantages in the following three aspects, (1) it is a clean and combustible fuel; (2) it has a high energy density; (3) it is widely distributed around the world. Despite these advantages, an economical and reliable energy supply framework based on hydrogen cannot be easily established, mainly because there are still many technical challenges, such as hydrogen production, storage and application. Among these challenges, the efficient storage of hydrogen energy has always been very difficult and needs to be solved urgently. The U.S. Department of Energy believes that for the large-scale commercial application of hydro...

AI Technical Summary

Problems solved by technology

Despite these advantages, an economical and reliable energy supply framework based on hydrogen cannot be easily established, mainly because there are still many technical challenges, such as hydrogen production, storage and application

Among these challenges, the efficient storage of hydrogen energy has always been very difficult and needs to be solved urgently

In the past, the synchrotron radiation X-ray powder diffraction test device used for hydrogen storage materials has a relatively large structure, which is not suitable for long-distance carrying, and the operation is not very convenient. The applicable pressure range is relatively low (2 Or the diffraction data of glass and it is difficult to separate, affecting further analysis of the data

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