A Rapid Preparation Method for Synchrotron Radiation X-ray Diffraction Samples of Hydrogen Storage Materials

A hydrogen storage material and X-ray technology, which is applied in the field of synchrotron radiation X-ray diffraction testing, can solve problems such as easy oxidation, and achieve the effects of avoiding oxidation, improving the success rate of filling, and reducing the amount of samples

Active Publication Date: 2018-03-13
YANGZHOU UNIV
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  • Application Information

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Problems solved by technology

However, most hydrogen storage materials have relatively strong reactivity, especially hydrogen storage materials that have undergone repeated hydrogen absorption and desorption, are very prone to oxidation, and synchrotron radiation X-ray diffraction devices generally work in an atmospheric environment, and there are only a few in a country. unit will have such a large device

Method used

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  • A Rapid Preparation Method for Synchrotron Radiation X-ray Diffraction Samples of Hydrogen Storage Materials
  • A Rapid Preparation Method for Synchrotron Radiation X-ray Diffraction Samples of Hydrogen Storage Materials
  • A Rapid Preparation Method for Synchrotron Radiation X-ray Diffraction Samples of Hydrogen Storage Materials

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Embodiment 1

[0020] 1. In an argon atmosphere glove box, weigh about 1g of LaNi with an electronic balance 5 Pour the sample into an agate mortar and grind it thoroughly until the particle size of the sample powder is between 10µm and 20µm. The particle size of the powder is confirmed by SEM, and then 0.04g LaNi is weighed by an electronic balance in an argon atmosphere glove box. 5 Powder samples are loaded into small glass weighing boats for later use.

[0021] 2. Move the capillary holder into the argon atmosphere glove box, and insert a paper funnel into the funnel at the upper end of the capillary, then pour all the powder samples in the glass weighing boat into the weighing paper funnel, and use a wire of about 1mm Push the powder sample into the funnel of the capillary.

[0022] After there is no powder sample in the weighing paper funnel, remove the weighing paper funnel, take out the transparent plexiglass tube together with the sponge and the capillary with the funnel at the upp...

Embodiment 2

[0027] 1. In an argon atmosphere glove box, weigh about 1g of LaNi through an electronic balance 4.75 al 0.25 Pour the sample into an agate mortar and grind it thoroughly until the particle size of the sample powder is between 10µm and 20µm. The particle size of the powder is confirmed by a laser particle size analyzer, and then weighed by an electronic balance in an argon atmosphere glove box. The g powder sample is loaded into a small glass weighing boat for use.

[0028] 2. Move the capillary holder into the argon atmosphere glove box, and insert a paper funnel into the funnel at the upper end of the capillary, then pour all the powder samples in the glass weighing boat into the weighing paper funnel, and use a wire of about 1mm Push the powder sample into the funnel of the capillary.

[0029] After there is no powder sample in the weighing paper funnel, remove the weighing paper funnel, take out the transparent plexiglass tube together with the sponge and the capillary w...

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Abstract

A rapid preparation method for synchrotron radiation X-ray diffraction test samples of hydrogen storage materials, which relates to the technical field of synchrotron radiation X-ray diffraction testing. The capillary is inserted into a sponge, and the sponge is hermetically covered in a transparent plexiglass holder, transparent The plexiglass is supported on a metal fixed frame, and the ground powder sample is filled into the capillary through a weighing paper funnel, and the open end of the capillary is sealed with vacuum grease; Carried out in the glove box. This method can reduce the amount of samples used, realize rapid and efficient preparation of test samples, avoid oxidation of hydrogen storage materials, obtain highly accurate synchrotron radiation X-ray spectra of the materials themselves, and then understand the microstructure of materials based on these X-ray spectra.

Description

technical field [0001] The invention relates to the technical field of synchrotron radiation X-ray diffraction testing, in particular to a rapid preparation method for a hydrogen storage material synchrotron radiation X-ray diffraction test sample. Background technique [0002] The energy crisis and environmental pollution have prompted many countries to develop various new energy technologies. Hydrogen energy is recognized as one of the most effective solutions to replace fossil energy, because it has the advantages of abundant sources, convenient use, and no pollution. However, for large-scale applications, hydrogen must be stored safely and efficiently. Hydrogen storage materials can safely store hydrogen, but the disadvantage is that the reversible hydrogen storage capacity is not high, and further development is needed. In addition, different engineering applications have different requirements on the performance of hydrogen storage materials, which involves material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 程宏辉李康韩兴博闫永珂柳义王宇严凯秦康生
Owner YANGZHOU UNIV
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