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Two-dimensional oversized mint-leaf-shaped nickel oxide nano material and preparation method thereof

A technology of nanomaterials and mint leaves, which is applied in the direction of cobalt oxide/cobalt hydroxide, etc., can solve the problem of small size of two-dimensional nickel oxide nanostructures, and achieve the effect of low cost, low cost and easy operation

Active Publication Date: 2016-04-20
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to literature research, it is found that there are many reports on the three-dimensional nickel oxide flower spherical structure composed of smaller nanosheets, but there are not many reports on the dispersed two-dimensional nanosheets, and the synthesized two-dimensional nickel oxide nanostructures have a size of Both are small, and there are few reports on two-dimensional ultra-large mint leaf-shaped nickel oxide nanomaterials with a size of micron

Method used

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  • Two-dimensional oversized mint-leaf-shaped nickel oxide nano material and preparation method thereof
  • Two-dimensional oversized mint-leaf-shaped nickel oxide nano material and preparation method thereof
  • Two-dimensional oversized mint-leaf-shaped nickel oxide nano material and preparation method thereof

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Effect test

Embodiment 1

[0025] The two-dimensional super-large mint leaf-shaped nickel oxide nano material of the present invention is prepared by a two-step method of hydrothermal synthesis and thermal decomposition, and the specific process flow is as follows:

[0026] (1) Weigh 0.5mmol Ni(CH 3 COO) 2 ·4H 2 O and 5mmol urea CO (NH 2 ) 2 , Add to a 100mL beaker, add 60mL of deionized water, stir to dissolve, and obtain a light green solution;

[0027] (2) Transfer the above solution to a 100mL stainless steel reactor with a polytetrafluoroethylene lining, seal it and place it in an oven, set the temperature to 120°C, and react for 12 hours;

[0028] (3) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, and dry the precipitate in a vacuum drying oven for 6 to 8 hours at a temperature of 60°C;

[0029] (4) Put the dried green precipitate in a resistance furnace and heat it at 350°C for 3 hours to obtain a two-dimensi...

Embodiment 2

[0034] The two-dimensional super-large mint leaf-shaped nickel oxide nano material of the present invention is prepared by a two-step method of hydrothermal synthesis and thermal decomposition, and the specific process flow is as follows:

[0035] (1) Weigh 0.5mmol Ni(CH 3 COO) 2 ·4H 2 O and 4mmol urea CO(NH 2 ) 2 , Add it to a 100mL beaker, add 60ml of deionized water, stir to dissolve to obtain a light green solution;

[0036] (2) Transfer the above solution to a 100mL stainless steel reactor with polytetrafluoroethylene lining, place it in an oven after sealing, set the temperature to 130°C, and react for 13 hours;

[0037] (3) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, and dry the precipitate in a vacuum drying oven for 6 to 8 hours at a temperature of 50°C;

[0038] (4) Put the dried green precipitate in a resistance furnace and heat it at 400°C for 2 hours to obtain a two-dimensi...

Embodiment 3

[0041] The two-dimensional super-large mint leaf-shaped nickel oxide nano material of the present invention is prepared by a two-step method of hydrothermal synthesis and thermal decomposition, and the specific process flow is as follows:

[0042] (1) Weigh 0.5mmol Ni(CH 3 COO) 2 ·4H 2 O and 6mmol urea CO (NH 2 ) 2 , Add it to a 100mL beaker, add 60ml of deionized water, stir to dissolve to obtain a light green solution;

[0043] (2) Transfer the above solution to a 100mL stainless steel reactor with a polytetrafluoroethylene lining, seal it and place it in an oven, set the temperature to 110°C, and react for 14 hours;

[0044] (3) After the reaction, cool to room temperature naturally, filter the precipitate, wash with absolute ethanol and distilled water for 3 to 5 times, and dry the precipitate in a vacuum drying oven for 6 to 8 hours at a temperature of 60°C;

[0045] (4) Put the dried green precipitate in a resistance furnace and heat treatment at 350°C for 4 hours to obtain a two...

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Abstract

The invention discloses a two-dimensional oversized mint-leaf-shaped nickel oxide nano material and a preparation method thereof. The preparation method comprises the steps that an appropriate amount of nickel acetate and urea are weighed and added into 60 milliliters of deionized water, dissolution under stirring is performed, and a light green solution is obtained; the solution is transferred into a 100-mL stainless steel reaction kettle with a polytetrafluoroethylene lining, the reaction kettle is sealed and then placed into a drying oven, the temperature is set at 110 DEG C-130 DEG C, and reacting is performed for 10-14 hours; after reacting is finished, a reaction product is naturally cooled to room temperature, filtered and washed, and a green precipitate is obtained; the dried green precipitate is put into a resistance furnace, the temperature is set at 300 DEG C-400 DEG C, heat treatment is performed for 2-4 hours, and then the two-dimensional oversized mint-leaf-shaped nickel oxide nano material is obtained. The diameter of mint leaves is 1.8-2.5 micrometers, the thickness of the mint leaves is 10-20 nm. The nano mint leaves are soft and thin and prone to be bent, and the surfaces of the mint leaves are rich in a large quantity of pore structures. According to the two-dimensional oversized mint-leaf-shaped nickel oxide nano material and the preparation method thereof, the technology is simple, operation is easy and convenient, and the repeatability is good.

Description

Technical field [0001] The invention relates to the technical field of nano material preparation, in particular to a two-dimensional super-large mint leaf-shaped nickel oxide nano material and a preparation method thereof. Background technique [0002] Since Novoselov and Geim discovered single-layer graphene in 2004, its special two-dimensional structure and excellent electrical properties have aroused great research interest in academia and industry. In recent years, two-dimensional nanomaterials have received extensive attention due to their important theoretical value and broad application prospects. Two-dimensional nanomaterials are considered to be a new type of material with atomic or molecular thickness and infinite plane dimensions. Due to its unique thickness dimension and two-dimensional structure characteristics, not only will the intrinsic properties of the material increase, but also some new properties that the corresponding block does not have. The discovery of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/04
CPCC01G51/04C01P2002/82C01P2004/03C01P2004/22C01P2004/50
Inventor 胡寒梅陈光耀王曼
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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