Preparation method of conductive metal organic framework packaged copper azide/cuprous azide

An organic framework and conductive metal technology, applied in the direction of azide acid/azide/halogen azide, metal azide composition, copper organic compound, etc., can solve the problem of low copper content in deposition and collapse of porous carbon skeleton , dangerous azide gas and other issues, to achieve the safe and reliable preparation process, avoid the accumulation of electrostatic charge, and improve the effect of electrostatic safety performance

Active Publication Date: 2021-03-09
NANJING UNIV OF SCI & TECH
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Problems solved by technology

But, still there is obvious defective in above-mentioned preparation method
It is difficult to deposit metal copper inside carbon nanotubes, and the content of deposited copper is not high, resulting in a low filling rate of copper azide; in addition, the preparation process needs to use porous anodized aluminum oxide (AAO) as a template, and the operation process is complicated and cumbersome
The metal-organic framework-derived porous carbon

Method used

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  • Preparation method of conductive metal organic framework packaged copper azide/cuprous azide
  • Preparation method of conductive metal organic framework packaged copper azide/cuprous azide
  • Preparation method of conductive metal organic framework packaged copper azide/cuprous azide

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preparation example Construction

[0026] Preparation references of Cu(TCNQ)【Liu H, Liu Z, Qian X, et al.Field emission and electrical switching properties of large-area CuTCNQ nanotube arrays[J].Crystal Growth&Design,2009,10(1):237-243 .]: Specifically, Cu(TCNQ) was prepared on a copper substrate by an impregnation method.

[0027] References for the preparation of Cu-CAT [Hmadeh M, Lu Z, Liu Z, et al. New porous crystals of extended metal-catecholates [J]. Chemistry of Materials, 2012, 24(18): 3511-3513.]: specifically Cu-CAT was obtained by solvothermal method.

Embodiment 1

[0029] With Cu(TCNQ) film as the anode, 0.01mol / L sodium azide aqueous solution as the electrolyte, the current density is 0.1mA / cm 2 , Cu(TCNQ) completes the azidation reaction at the anode, and the reaction time is 240 minutes. After the reaction is completed, it is dried to obtain Cu(TCNQ) packaged copper azide / cuprous azide material.

Embodiment 2

[0031] With Cu(TCNQ) film as anode, 0.02mol / L sodium azide aqueous solution as electrolyte, current density is 0.1mA / cm 2 , Cu(TCNQ) completes the azidation reaction at the anode, and the reaction time is 240 minutes. After the reaction is completed, it is dried to obtain Cu(TCNQ) packaged copper azide / cuprous azide material.

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Abstract

The invention discloses a preparation method of copper azide/cuprous azide packaged by a conductive metal organic framework. According to the method, a conductive copper-containing metal organic framework material is adopted as a precursor, and azido of the precursor is completed through a liquid-solid electrochemical azido reaction. According to the invention, the copper azide/cuprous azide nanocrystals are highly and uniformly embedded in the conductive frame, so that agglomeration of copper azide/cuprous azide can be effectively avoided, static electricity generated by friction, displacement and the like can be reduced, the conductive frame can promote effective transfer of charges, accumulation of static charges is avoided, and the static safety performance is improved. Besides, the liquid-solid electrochemical azide reaction has the advantages of safety, high efficiency, short reaction time, high operability and the like, and the preparation process is compatible with the MEMS process, so that the application of the copper azide/cuprous azide material in micro devices is facilitated.

Description

technical field [0001] The invention belongs to the technical field of electrochemical synthesis, and relates to a method for preparing copper azide / cuprous azide packaged by a conductive metal organic frame. Background technique [0002] The development of micro-sized pyrotechnics puts forward requirements for energetic materials such as high energy output, low-energy stimulation, small-scale charging and dissemination, and compatibility with micro-electromechanical systems (MEMS) technology. Traditional energetic materials are limited by their preparation process and packaging. The limitation of the way of medicine has been unable to meet the development requirements. As a high energy density energetic material, copper azide / cuprous azide has significantly higher detonation power than lead azide and lead styphate, which can effectively reduce the charge amount of sensitive agents, reduce input energy, and improve weapon safety . In addition, the toxicity of copper elemen...

Claims

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Application Information

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IPC IPC(8): C06B35/00C01B21/08
CPCC06B35/00C01B21/08C25D9/06C07F1/08C25B1/01C25B9/65C01G3/00C25B1/00C25D9/02
Inventor 张文超俞春培陈俊宏郑子龙陈亚杰王嘉鑫胡斌叶家海秦志春田桂蓉
Owner NANJING UNIV OF SCI & TECH
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