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Two-dimensional ultra-thin independent nicu-sio 2 Nanocomposite material and its synthesis method

A technology of nanocomposite material and synthesis method, which is applied in the field of two-dimensional ultrathin self-independent NiCu-SiO2 nanocomposite material and its synthesis, can solve the problems of difficult to completely remove the surfactant, the influence of the subsequent application of the material, etc., so as to avoid adverse effects. , good stability, improve the effect of catalytic efficiency

Active Publication Date: 2020-08-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the method of loading nano-alloy particles on the two-dimensional structure mostly uses surfactants. Since the surfactants are difficult to completely remove, it has a certain impact on the subsequent application of materials.

Method used

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  • Two-dimensional ultra-thin independent nicu-sio <sub>2</sub> Nanocomposite material and its synthesis method
  • Two-dimensional ultra-thin independent nicu-sio <sub>2</sub> Nanocomposite material and its synthesis method
  • Two-dimensional ultra-thin independent nicu-sio <sub>2</sub> Nanocomposite material and its synthesis method

Examples

Experimental program
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Effect test

Embodiment 1

[0050]The two-dimensional ultra-thin self-contained NiCu-SiO provided by this embodiment 2 The synthetic method of nanocomposite material, concrete steps are as follows:

[0051] (1) Cut the ground silicon wafer into small pieces of 5mm*5mm, put them into the Erlenmeyer flask, and use ethanol, acetone and deionized water to sonicate repeatedly until the solution is no longer turbid after sonication, and store it in distilled water for subsequent experiments use.

[0052] (2) Accurately weigh 500mg of urea, pour it into a 30mL reaction kettle, and then clamp a small piece of ground silicon wafer treated in step (1) into the reaction kettle;

[0053] Accurately weigh 0.1188g NiCl 2 ·6H 2 O, be prepared into 100ml solution with deionized water, the concentration is 5mmol / L, accurately weigh 0.0853g CuCl 2 2H 2 O, made into 100ml solution with deionized water, concentration is 5mmol / L, Ni 2+ : Cu 2+ Mix according to the molar ratio of 3:1, the total volume is 20ml; then pou...

Embodiment 2

[0059] The two-dimensional ultra-thin self-contained NiCu-SiO provided by this embodiment 2 The synthetic method of nanocomposite material, concrete steps are as follows:

[0060] (1) Cut the ground silicon wafer into small pieces of 5mm*5mm, put them into conical flasks, and use ethanol, acetone, and deionized water to sonicate several times until the solution is no longer turbid after sonication, and store them in deionized water for subsequent use. Experimental use.

[0061] (2) Accurately weigh 500mg of urea, pour it into a 30mL reaction kettle, and then clamp a small piece of ground silicon wafer treated in step (1) into the reaction kettle;

[0062] Accurately weigh 0.1188g NiCl 2 ·6H 2 O, be prepared into 100ml solution with deionized water, the concentration is 5mmol / L, accurately weigh 0.0853g CuCl 2 2H 2 O, made into 100ml solution with deionized water, concentration is 5mmol / L, Ni 2+ : Cu 2+ Mix according to the molar ratio of 3:1, the total volume is 20ml; t...

Embodiment 3

[0067] The two-dimensional ultra-thin self-contained NiCu-SiO provided by this embodiment 2 The synthetic method of nanocomposite material, concrete steps are as follows:

[0068] (1) Cut the ground silicon wafer into small pieces of 5mm*5mm, put them into conical flasks, and use ethanol, acetone, and deionized water to sonicate several times until the solution is no longer turbid after sonication, and store them in deionized water for subsequent use. Experimental use.

[0069] (2) Accurately weigh 500mg of urea, pour it into a 30mL reaction kettle, and then clamp a small piece of ground silicon wafer treated in step (1) into the reaction kettle;

[0070] Accurately weigh 0.1188g NiCl 2 ·6H 2 O, be prepared into 100ml solution with deionized water, the concentration is 5mmol / L, accurately weigh 0.0853g CuCl 2 2H 2 O, made into 100ml solution with deionized water, concentration is 5mmol / L, Ni 2+ : Cu 2+ Mix according to the molar ratio of 3:1, the total volume is 20ml; t...

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Abstract

The invention provides a two-dimensional ultra-thin independent NiCu-SiO2 nano composite material and a synthesis method thereof, and belongs to the technical field of inorganic nano materials. The synthesis method specifically comprises the following steps: (1) cutting a ground silicon wafer into small pieces of 5 mm*5 mm, respectively carrying out a plurality of times of ultrasonic treatment with ethanol, acetone and deionized water until the solution is no longer turbid, and storing the treated silicon wafers in deionized water for standby; (2) adding inorganic salts of Ni and Cu, urea andtreated silicon wafers into a reaction kettle, placing the reaction kettle in a drying oven, carrying out a reaction, and then carrying out centrifuging, washing and drying to obtain an intermediate product; and (3) reducing the intermediate product in a hydrogen atmosphere to obtain a final product. The two-dimensional ultra-thin independent NiCu-SiO2 nano composite material with a large specificsurface area prepared by the synthesis method provided by the invention has excellent magnetism and catalytic activity. In addition, the method is simple, is easy to operate, and is easy to control,the product treatment is simple, and the method is suitable for medium-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanomaterials, in particular to a two-dimensional ultra-thin self-independent NiCu-SiO 2 Nanocomposites and methods of their synthesis. Background technique [0002] Two-dimensional nanomaterials have many advantages such as large specific surface area, excellent electrical conductivity, ultra-high chemical activity, and unusual physical and chemical properties, and are widely used in photoelectricity, catalysis, sensing, biology, and energy conversion. The synergistic effect of the two-dimensional structure in the process of compounding nanoparticles makes it show more excellent performance in many practical applications: for example, as a lithium-ion electrode material, the two-dimensional nanocomposite material has good conductivity and can improve The diffusibility of the electrode material and the electrolyte phase interface; as an electrocatalyst, it has good dispersion of nanoparticles a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/755B01J37/10B01J37/18C07C209/36C07C215/76
CPCB01J23/755B01J37/10B01J37/18C07C209/36C07C215/76
Inventor 温鸣顾琛吴丹丹仲帅
Owner TONGJI UNIV
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