Pentazole compound material and preparation method thereof

A technology of azole compound and sodium azide, which is applied in the field of pentazole compound materials and its preparation, can solve the problems of complex non-energetic chemical ratio and density not meeting the necessary conditions, and achieve simple process, low cost, and synthetic low pressure effect

Pending Publication Date: 2021-11-30
JILIN UNIV
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Problems solved by technology

In 2017, Chinese scientists prepared a stable five-membered ring N5ˉ-containing ionic salt (N5)6(H3O)3(NH 4 )4Cl, but due to its complex non-energetic stoichiometry, it does not meet the prerequisites for high energy density materials in terms of material density, etc.

Method used

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  • Pentazole compound material and preparation method thereof

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preparation example Construction

[0018] The invention provides a preparation method of a pentazole compound material, comprising the following steps:

[0019] Put the sodium azide powder in the pressurization device, pressurize to 38GPa, and rotate reciprocatingly with 45° as a rotation cycle, apply shear stress, stop the rotation when the total angle of reciprocating rotation is 90°, and then carry out Laser heating to 2000K for 10 seconds yields the pentazole compound.

[0020] In the present invention, unless otherwise specified, the required preparation materials or devices are commercially available products well known to those skilled in the art.

[0021] In the present invention, the pressurizing device is preferably an unbalanced load diamond pair anvil press; the present invention has no special restrictions on the unbalanced load diamond pair anvil press, and the corresponding devices well known in the art can be used. The anvil surface of the unbalanced load diamond-anvil press is 200 μm diamond. ...

Embodiment 1

[0030] Use a diamond with an anvil surface of 200 μm to pre-press the rhenium sheet, and drill a circular hole with a diameter of 66 μm in the center of the indentation. The circular hole is used as a sample cavity for loading raw materials, and excess sodium azide powder is filled. Put it into the sample chamber, add two ruby ​​balls with a diameter of 3 μm as the pressure standard, do not add any other medium as the pressure transmission medium, pressurize at a rate of 4GPa / min, when the pressure is increased to 38GPa, every 10s Rotate at a rate of 45°, 45° is a rotation cycle, rotate 90°, stop the rotation, and then perform laser heating to 2000K for 10 seconds to obtain a pentazole compound.

[0031] Raman scattering test is carried out to the pentazole compound material prepared in this embodiment, the results are shown in figure 1 ;Depend on figure 1 It can be seen that the stretching vibration v1 of the azide ion disappears, and the decomposition of sodium azide disapp...

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Abstract

The invention relates to a pentazole compound material and a preparation method thereof, and belongs to the technical field of nitrogen-rich material preparation, and the preparation method comprises the following steps: placing sodium azide powder in a pressurizing device, pressurizing to 38GPa, carrying out reciprocating rotation by taking 45 degrees as a rotation period, applying shear stress, stopping rotation when the total angle of reciprocating rotation is 90 degrees, and then carrying out laser heating to 2000K and lasting for 10 seconds to obtain the pentazole compound. The method does not need to introduce other impurities in the preparation process, and is low in synthesis pressure, simple in process, low in cost, free of environmental pollution, safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of nitrogen-rich material preparation, and in particular relates to a pentazole compound material and a preparation method thereof. Background technique [0002] Under normal pressure, nitrogen molecules are diatomic molecules, in which the nitrogen atoms are bonded by extremely strong covalent triple bonds, and the nitrogen molecules are relatively weak van der Waals forces. Under the action of pressure, the interaction between nitrogen molecules is gradually strengthened. When it is comparable to the covalent bond inside the molecule, the nitrogen-nitrogen triple bond is opened to form non-molecular nitrogen bonded by nitrogen-nitrogen single bond, that is, polymerized nitrogen. Since there is a huge energy difference between the nitrogen-nitrogen single bond and the nitrogen-nitrogen triple bond, a huge energy will be released when the nitrogen-nitrogen single bond in the polymerized nitrogen is converted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D259/00
CPCC07D259/00
Inventor 刘冰冰焦璐王鹏刘然刘波
Owner JILIN UNIV
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