Synthesis method of metal deuterium storage material AlD3 powder

A synthesis method and powder technology, applied in non-metallic elements, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of low hydrogen storage capacity, low deuterium storage capacity of metal deuterium storage compounds, low energy supply, etc., to achieve Large energy supply, convenient crystal transformation, high combustion heat effect

Inactive Publication Date: 2015-04-08
HARBIN INST OF TECH
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Problems solved by technology

[0004] The present invention is to solve the existing AlH 3 The synthesis method has strict requirements on the experimental operation, and the synthesized AlH 3 The hydrogen storage capacity is not high, the deuterium storage capacity of similar metal deuterium storage compounds is not high, and the technical problem of low energy supply is to provide a metal deuterium storage material AlD 3 Synthesis method of powder

Method used

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  • Synthesis method of metal deuterium storage material AlD3 powder
  • Synthesis method of metal deuterium storage material AlD3 powder

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specific Embodiment approach 1

[0014] Specific embodiment one: the metal deuterium storage material AlD of this embodiment 3 The synthetic method of powder is carried out as follows:

[0015] 1. Press AlCl 3 and LiAlD 4 The molar ratio is 1: (2~4), AlCl 3 and LiBH 4 The molar ratio is 1: (0.5~10), weigh AlCl 3 、LiAlD 4 and LiBH 4 ; According to anhydrous AlCl 3 The molar ratio to anhydrous ether is 1: (5~20), and anhydrous AlCl 3 Dissolved in anhydrous ether to obtain AlCl 3 solution; according to anhydrous LiAlD 4 The molar ratio with anhydrous ether is 1: (5~20), the anhydrous LiAlD 4 Dissolved in anhydrous ether to obtain LiAlD 4 solution; according to anhydrous LiBH 4 The molar ratio with anhydrous ether is 1: (5~20), the anhydrous LiBH 4 Dissolved in anhydrous ether to obtain LiBH 4 solution;

[0016] Two, the AlCl obtained in step one 3 solution and LiAlD 4 The solution is mixed, stirred for 2~3min, then heated to a temperature of 15~35°C, reacted for 10~60min, left to age for 1~6h, a...

specific Embodiment approach 2

[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the anhydrous AlCl in step one 3 The molar ratio to anhydrous ether is 1: (10~15), anhydrous LiAlD 4 The molar ratio to anhydrous ether is 1: (10~15), anhydrous LiBH 4 The molar ratio with anhydrous ether is 1: (10~15), and other steps and parameters are different from the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: AlCl in step two 3 and LiAlD 4 The molar ratio is 1:3, and other steps and parameters are different from those in Embodiment 1 or 2.

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Abstract

The invention relates to a synthesis method of metal deuterium storage material AlD3 powder, and in particular relates to a synthesis method of AlD3, aiming at solving the technical problems that the existing synthesis method of AlH3 is strict for test operation requirements, the synthesized AlH3 is low in hydrogen storage content, and similar metal deuterium compounds are low in deuterium storage content and energy supply. The synthesis method comprises the following steps of: under the anhydrous condition, mixing AlCl3 with absolute ether solution of LiAlD4; then, adding a crystallization additive LiBH4 into the mixed solution; and drying under the vacuum condition to obtain the product AlD3. The synthesis method is simple in operation method; and the synthesized AlD3 powder is single in crystal form, high in deuterium storage content (about 15-20%) and more in energy supply, thus being an ideal metal deuterium storage material of high-energy solid propellants, solid-liquid hybrid propellants, composite propellants and the like, and being applied to fields of rocket propellants and scientific research.

Description

technical field [0001] The present invention relates to AlD 3 synthetic method. Background technique [0002] The development direction of solid rocket propellants is to use composite solid propellants. Compared with liquid propellants and solid-liquid mixed propellants, solid propellants have advantages in safety performance, reliability performance, storage performance and low cost. Solid propellants are generally composed of oxidizers, adhesives, fuels and additives. As an important part of composite solid propellants, fuel plays a role in providing energy. Therefore, the research on fuel in composite solid propellants is particularly important. Because H 3 Since the 1970s, countries such as the United States, Russia and Europe have begun to use AlD 3 Isotopic compounds of AlH 3 Composite solid propellants are studied as fuel. The existing Chinese invention patent No. 201110176732 "Catalyst Directional Control of LiH and AlCl 3 Reaction to synthesize AlH 3 The meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B4/00
Inventor 杨玉林李煜东
Owner HARBIN INST OF TECH
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