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A kind of graphene-based energetic MOFs and preparation method thereof

A graphene-based, graphene-based technology, applied in offensive equipment, explosives, compressed gas generation, etc., to achieve the effects of overcoming energy reduction, improving combustion catalytic performance, and improving combustion stability and energy characteristics

Active Publication Date: 2022-05-24
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a graphene-based energetic MOFs and its preparation method, to solve the problem of the combustion catalyst in the prior art on the basis of ensuring the catalytic combustion performance, and the combustion catalyst propelling the solid The energy level of the agent and the technical problem that the combustion stability needs to be further improved

Method used

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  • A kind of graphene-based energetic MOFs and preparation method thereof
  • A kind of graphene-based energetic MOFs and preparation method thereof
  • A kind of graphene-based energetic MOFs and preparation method thereof

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Embodiment 1

[0058] The present embodiment provides a preparation method of graphene-based energetic MOFs, which comprises the following steps:

[0059] Step 1, the preparation of graphene-organic acid metal complex:

[0060] A gallic acid aqueous solution was added dropwise to the ethanol dispersion of graphene oxide, and the graphene-gallic acid composite (G-M) was obtained by refluxing for 3 h; then the graphene-gallic acid composite was dispersed in ethanol and mixed with chlorine The iron aqueous solution was mixed and reacted at 60 °C for 6 h to obtain graphene-iron gallate complex (G-M-Fe);

[0061] The concentration of ferrous chloride aqueous solution is 0.05g·mL -1 ;

[0062] The mass ratio between graphene oxide and gallic acid is 1:3.

[0063] The molar ratio between gallic acid and ferrous chloride was 2:1.

[0064] Step 2, the preparation of 1,1'-dihydroxy-5,5'-bitetrazole dihydroxyamine salt-based metal complex

[0065] 1,1'-dihydroxy-5,5'-bitetrazole dihydroxyamine sal...

Embodiment 2

[0082] The present embodiment provides a preparation method of graphene-based energetic MOFs, which comprises the following steps:

[0083] Step 1, the preparation of graphene-organic acid metal complex:

[0084] The tannic acid aqueous solution was added dropwise to the ethanolic dispersion of graphene oxide, and the graphene-tannic acid composite (G-D) was obtained by refluxing for 3 h; then the graphene-tannic acid composite was dispersed in ethanol, and mixed with nitric acid. The nickel aqueous solution was mixed and reacted at 50 °C for 12 h to obtain a graphene-nickel tannic acid complex (G-D-Ni);

[0085] The concentration of nickel nitrate aqueous solution is 0.05g·mL -1 ;

[0086] The mass ratio between graphene oxide and tannic acid was 1:5.

[0087] The molar ratio between tannic acid and nickel nitrate was 1:1.

[0088] Step 2, the preparation of 1,1'-dihydroxy-5,5'-bitetrazole dihydroxyamine salt-based metal complex

[0089] 1,1'-dihydroxy-5,5'-bitetrazole d...

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Abstract

The invention provides a graphene-based energetic MOFs and a preparation method thereof. In the method, a graphene-organic acid metal complex is ultrasonically dispersed in methanol, and 1,1'-dihydroxy-5,5'-diphenyl The azole dihydroxylamine salt-based metal complex is dissolved in DMF, the two solutions are stirred and mixed, placed in the polytetrafluoroethylene lining of a stainless steel autoclave, and reacted at 180°C-200°C for 48-60h, and cooled to After room temperature, filtration, washing, and freeze-drying were performed to obtain graphene-based energetic MOFs. The graphene-based energetic MOFs of the present invention realize the energeticization of graphene-organic acid metal complexes. When the synthesized graphene-based energetic MOFs are used as combustion catalysts, they not only maintain good combustion catalytic performance, but also overcome The disadvantage of the inert catalyst reducing the energy of the solid propellant can be used as a functional energetic combustion catalyst.

Description

technical field [0001] The invention belongs to the field of solid propellants, relates to a combustion catalyst, and in particular relates to a graphene-based energetic MOFs and a preparation method thereof. Background technique [0002] Solid propellant is the power source of rocket and missile tactical weapons, and its performance directly affects the range, carrying capacity and survivability of missiles and weapons. Combustion catalyst is an indispensable functional component in solid propellant, and it is the technical key to improve the combustion performance of solid propellant. [0003] Solid propellants can be divided into composite propellants with ammonium perchlorate (AP) as the oxidant and double-base propellants with nitroglycerin / nitrocellulose (NG / NC) as the main energy component. Ferrocene and its derivatives are commonly used oxidants in composite solid propellants. The addition of a small amount of metallic nickel powder to double-base propellants as fun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C06B23/00C06D5/00
CPCC08G83/008C06B23/007C06D5/00
Inventor 赵凤起张明杨燕京李辉安亭李娜姜一帆侯晓婷蒋周峰张建侃
Owner XIAN MODERN CHEM RES INST
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