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A kind of hydroxy copper fluoride nano sheet and its synthesis method

A technology of copper hydroxyfluoride and nanosheets, applied in copper halide and other directions, can solve the problems of rare reports on the preparation and application of copper hydroxyfluoride, difficulty of high-purity CuOHF, high price, etc. simple method effect

Inactive Publication Date: 2019-10-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has potential applications in short-wavelength light-emitting devices, ultraviolet light detection and high-temperature, high-power electronic devices, but there are few reports on the preparation and application of copper hydroxyfluoride
According to literature reports, CuOHF is made of expensive CuF 2 2H 2 O is hydrolyzed in an alkaline environment (Wheeler Jr C M, Haendler H M. The Thermal Decomposition of Copper(II) Fluoride Dihydrate1[J]. Journal of the American Chemical Society, 1954,76(1):263-264.), due to CuF 2 2H 2 The instability of O itself leads to impurities in the synthesized CuOHF, and the CuF 2 2H 2 O is toxic, so it is relatively difficult to safely synthesize high-purity CuOHF by this method

Method used

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  • A kind of hydroxy copper fluoride nano sheet and its synthesis method
  • A kind of hydroxy copper fluoride nano sheet and its synthesis method
  • A kind of hydroxy copper fluoride nano sheet and its synthesis method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Example 1 The best overall process for preparing CuOHF nanosheets.

[0032] Using copper nitrate, hexamethyltetramine (HMT), sodium fluoride (NaF), and deionized water as raw materials, first dissolve 0.362g of copper nitrate and 0.210g of HMT in 15ml of deionized water, and stir at room temperature 10min, then add 0.315g of NaF and continue stirring at room temperature for 15min. After the stirring is completed, pour the mixed solution into a polytetrafluoroethylene liner with a volume of about 20ml, and then put it into a stainless steel autoclave and seal it. Heat up to 95°C at a heating rate of 5°C / min and keep it warm for 2 hours. After the reaction is completed, the autoclave is naturally cooled to room temperature, and the reaction product is centrifugally washed with deionized water for 3 to 4 times in order to obtain a high-purity sample, and then The reaction product was dried at 65°C for 2 hours to obtain a light green powder sample.

[0033] figure 1 Give...

Embodiment 2

[0034] Example 2 The whole process of preparing CuOHF nanosheets.

[0035] With copper nitrate, HMT, sodium fluoride, deionized water as raw material (each raw material consumption is the same as embodiment 1), at first copper nitrate and HMT are dissolved in the deionized water of 15ml, stir 10min at room temperature, add NaF then, in Stirring was continued for 15 min at room temperature. After the stirring is completed, pour the mixed solution into a polytetrafluoroethylene liner with a volume of about 20ml, and then put it into a stainless steel autoclave and seal it. Heat to 95°C at a heating rate of 5°C / min and keep it warm for 6 hours. After the reaction is completed, the autoclave is naturally cooled to room temperature, and the reaction product is centrifugally washed with deionized water for 3 to 4 times in order to obtain a high-purity sample, and then The reaction product was dried at 65°C for 2 hours to obtain a light green powder sample.

[0036] Image 6 Given...

Embodiment 3

[0037] Example 3 The whole process of preparing CuOHF nanosheets.

[0038]With copper nitrate, HMT, sodium fluoride, deionized water as raw materials (the same amount of raw materials as in Example 1), first copper nitrate and HMT were dissolved in 15ml of deionized water, stirred at room temperature for 10min, then added NaF at room temperature Stirring was continued for 15 min. After the stirring is completed, pour the mixed solution into a polytetrafluoroethylene liner with a volume of about 20ml, and then put it into a stainless steel autoclave and seal it. Heat up to 95°C at a heating rate of 5°C / min and keep it warm for 10 hours. After the reaction is completed, the autoclave is naturally cooled to room temperature, and the reaction product is centrifugally washed with deionized water for 3 to 4 times in order to obtain a high-purity sample, and then The reaction product was dried at 65°C for 2 hours to obtain a light green powder sample.

[0039] Figure 7 Given the ...

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Abstract

The invention provides a hydroxy copper fluoride nanosheet and a preparation method thereof, and belongs to the technical field of nanomaterial preparation. The preparation method comprises the following steps: firstly, dissolving copper nitrate and hexamine in deionized water, stirring for 10 minutes, then adding NaF and continually stirring for 15 minutes; pouring a mixed solution into a polytetrafluoroethylene lining, and placing the polytetrafluoroethylene lining into a stainless steel high-pressure reaction kettle for sealing; preserving heat at the temperature of 90 to 115 DEG C for reacting for 2 to 18 hours; centrifugally cleaning a reaction product with deionized water after natural cooling, and drying to obtain a light-green powdery sample. The prepared nanosheet is prepared fromCuOHF with a monoclinic crystal structure, and the nanosheet is about 200 to 400nm in side length and about 20 to 30nm in thickness. The hydroxy copper fluoride nanosheet is prepared from nontoxic and cheap raw materials, and the method is simple, high in repeatability and low in cost; the prepared product has a potential application prospect on the aspects of short-wavelength light-emitting devices, ultraviolet detection, high-temperature and high-power electronic devices and the like.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation, and in particular relates to a simple method for preparing hydroxycopper fluoride nanosheets. Background technique [0002] With the extensive and in-depth research on nanomaterials, it is found that nanomaterials have a large specific surface area, and the number of surface atoms, surface energy and surface tension increase sharply with the decrease of particle size, showing small size effect, quantum size effect and macroscopic quantum size effect. Tunneling effect and other characteristics make nanomaterials different from traditional materials in terms of magnetic, optical, and mechanical properties. Among them, nanosheet-like structure materials are called two-dimensional materials because their size in only one dimension is much smaller than other dimensions. This material has broad application prospects in microelectronic devices, electronic optical devices and so o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/04
Inventor 张剑田辉何东雪王悦赵悦崔航崔啟良
Owner JILIN UNIV
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