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Hydro-thermal synthesis method of cubic phase InSe nano sheet

A cubic crystal phase, hydrothermal synthesis technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as sample inhomogeneity, low yield, human body and environmental hazards, and achieve product Good crystallinity, simple preparation method and strong controllability

Inactive Publication Date: 2012-11-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Limited by the synthesis method, it is difficult to synthesize cubic InSe by traditional methods. Most of the currently synthesized InSe is hexagonal, and there are few reports on cubic InSe.
The developed methods of synthesizing InSe mainly include field effect method, solid phase method, organometallic hot steam method, etc., but the above synthesis methods require high-end precision instruments, the reaction temperature is 400~1000°C, the energy consumption is large, and toxic gases will be generated. , causing certain harm to the human body and the environment, and the samples obtained by these methods also have disadvantages such as inhomogeneity and low yield.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of hydrothermal synthesis method of cubic crystal phase InSe nano sheet, concrete steps are as follows:

[0029] (1) Use an electronic balance to weigh 0.0442g of indium chloride and 0.0519g of sodium selenite in a 25ml reaction kettle;

[0030] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 3 minutes to make it well mixed;

[0031] (3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), and stir for 10 minutes to make it evenly mixed;

[0032] (4) Seal the reaction kettle and place it in an oven at 180°C for three days at a constant temperature, then cool it down to room temperature naturally, wash it with absolute ethanol 5 times, and dry it in a vacuum oven at 60°C to obtain nanosheets of yellow indium selenide precursor;

[0033] (5) The yellow precursor obtained in (4...

Embodiment 2

[0041] A kind of hydrothermal synthesis method of cubic crystal phase InSe nano sheet, concrete steps are as follows:

[0042] (1) Use an electronic balance to weigh 0.0709g of indium bromide and 0.0519g of sodium selenite in a 25ml reaction kettle;

[0043] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 3 minutes to make it well mixed;

[0044] (3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), stir for 10 minutes to fully dissolve and mix evenly;

[0045] (4) Seal the reaction kettle and place it in an oven at 180°C for three days at a constant temperature, then cool it down to room temperature naturally, wash it with absolute ethanol 5 times, and dry it in a vacuum oven at 60°C to obtain nanosheets of yellow indium selenide precursor;

[0046] (5) The yellow precursor obtained i...

Embodiment 3

[0048] A kind of hydrothermal synthesis method of cubic crystal phase InSe nano sheet, concrete steps are as follows:

[0049] (1) Use an electronic balance to weigh 0.0764g of indium nitrate and 0.0519g of sodium selenite in a 25ml reaction kettle;

[0050] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 3 minutes to make it well mixed;

[0051] (3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), stir for 10 minutes to fully dissolve and mix evenly;

[0052] (4) Seal the reaction kettle and place it in an oven at 180°C for three days at a constant temperature, then cool it down to room temperature naturally, wash it with absolute ethanol 5 times, and dry it in a vacuum oven at 60°C to obtain nanosheets of yellow indium selenide precursor;

[0053] (5) The yellow precursor obtained i...

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Abstract

The invention belongs to the technical field of synthesis of environment-friendly nano material, relates to a synthesis method of the nano material, and particularly relates to a hydro-thermal synthesis method of cubic phase InSe nano sheet. The hydro-thermal synthesis method of cubic phase InSe nano sheet comprises the followings steps of: using a ternary hybrid solution of diethylenetriamine, hydrazine hydrate and water as solvent, carrying out hydro-thermal synthesis reaction on hydro-thermal synthesis aqueous solution and sodium selenite aqueous solution in a reaction kettle at 180 DEG C, rinsing by absolute ethyl alcohol, centrifugally separating, drying, and roasting, so as to obtain the nano material. Inferred from the growth mechanism, the method is suitable for the preparation of other selenium and tellurium metal compound nano materials. From the scanning electron microscope (SEM), after roasting, the nano sheet has high crystallinity, smooth surface and even size, and is 0.6-1.3microns in length, 0.5-1micron in width and 60nm in thickness, and most nano sheets are square. The preparation method has the following characteristics of simplicity, low cost, high controllability, high crystallinity of product, high yield, green and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of synthesis of environment-friendly nanometer materials, and relates to a synthesis method of nanometer materials, in particular to a hydrothermal synthesis method of cubic crystal phase InSe nanosheets. Background technique [0002] Broadly speaking, nanomaterials refer to materials with at least one dimension in the nanoscale range in three-dimensional space, or structural materials assembled from them as basic units. If divided according to the number of dimensions, nanomaterials can be roughly divided into four categories: (i) zero-dimensional, which means that the three-dimensional dimensions in space are all at the nanoscale, such as nanoscale particles, nanospheres, atomic clusters, etc.; (ii) one Dimensional means that there are two dimensions at the nanoscale in space, such as nanowires, nanorods, nanotubes, nanoribbons, and nanofibers; Nanosheets, superlattices, etc. (v) Three-dimensional, refer...

Claims

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Application Information

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IPC IPC(8): C01B19/04B82Y30/00
Inventor 施伟东刘裴范伟强于帅石佳奇
Owner JIANGSU UNIV
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