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A kind of preparation method of graphene-like magnesium silicide nanosheet

A graphene-like, nano-sheet technology, applied in nanotechnology, nanotechnology, metal silicides, etc., can solve the limited synthesis method and the nature of the material, there is no graphene-like magnesium silicide nanosheet synthesis and application report , scarcity, etc.

Active Publication Date: 2017-01-18
JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reports on the synthesis of magnesium silicide nanosheet structures are still relatively scarce, and some use slices to achieve this morphology, but this method is limited by technology
Therefore, the synthesis of magnesium silicide with a sheet-like structure is still limited by the synthesis method and the nature of the material. So far, there is no report on the synthesis and application of graphene-like magnesium silicide nanosheets; this also makes the design of new types Graphene-like magnesium silicide nanosheets are still a great challenge in theoretical research and practical application

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] (1) Preparation of graphene oxide: The preparation method of graphene oxide in this experiment is a modified Hummers method, the specific operation is, 1g mixed graphite, 2g K 2 S 2 o 8 , 2g P 2 o 5 After mixing, add 6ml of concentrated sulfuric acid, heat to 80°C, keep for 2 hours, wash with water, filter and dry to obtain pre-oxidized graphite; mix the dried pre-oxidized graphite with 60ml of concentrated sulfuric acid for deep oxidation, and slowly add 8g of KMnO 4 After treatment at a constant temperature of 80°C for 2 hours, 200ml of water and 20ml of hydrogen peroxide were added in sequence; finally, acid and metal ions were removed by treatment with dilute hydrochloric acid (water: concentrated hydrochloric acid = 10:1), and graphene oxide was obtained after ultrasonic centrifugation.

[0029] (2) SiO 2 Compounding of precursor and graphene oxide: 1ml of n-ethyl silicate is dispersed in a mixture of 40ml of ethanol, 4ml of water and 1ml of ammonia water to ob...

Embodiment 2

[0032] (1) Preparation of graphene oxide: The preparation method of graphene oxide in this experiment is a modified Hummers method, the specific operation is, 1g mixed graphite, 2g K 2 S 2 o 8 , 2g P 2 o 5 After mixing, add 6ml of concentrated sulfuric acid, heat to 80°C, keep for 2 hours, wash with water, filter and dry to obtain pre-oxidized graphite; mix the dried pre-oxidized graphite with 60ml of concentrated sulfuric acid for deep oxidation, and slowly add 8g of KMnO 4After treatment at a constant temperature of 80°C for 2 hours, 200ml of water and 20ml of hydrogen peroxide were added in sequence; finally, acid and metal ions were removed by treatment with dilute hydrochloric acid (water: concentrated hydrochloric acid = 10:1), and graphene oxide was obtained after ultrasonic centrifugation.

[0033] (2) SiO 2 Compounding of precursor and graphene oxide: 2ml of n-ethyl silicate is dispersed in a mixture of 40ml of ethanol, 4ml of water and 1ml of ammonia water to obt...

Embodiment 3

[0036] (1) Preparation of graphene oxide: The preparation method of graphene oxide in this experiment is a modified Hummers method, the specific operation is, 1g mixed graphite, 2g K 2 S 2 o 8 , 2g P 2 o 5 After mixing, add 6ml of concentrated sulfuric acid, heat to 80°C, keep for 2 hours, wash with water, filter and dry to obtain pre-oxidized graphite; mix the dried pre-oxidized graphite with 60ml of concentrated sulfuric acid for deep oxidation, and slowly add 8g of KMnO 4 After treatment at a constant temperature of 80°C for 2 hours, 200ml of water and 20ml of hydrogen peroxide were added in sequence; finally, acid and metal ions were removed by treatment with dilute hydrochloric acid (water: concentrated hydrochloric acid = 10:1), and graphene oxide was obtained after ultrasonic centrifugation.

[0037] (2) SiO 2 Compounding of precursor and graphene oxide: 5ml of n-ethyl silicate is dispersed in a mixture of 40ml of ethanol, 4ml of water and 1ml of ammonia water to ob...

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Abstract

The invention belongs to the technical field of preparation of semiconductor materials, and particularly relates to a preparation method of graphene-like magnesium silicide nanosheets. According to the method, by using graphene oxide as a template and a mixed solution of n-ethyl silicate, ammonia water, distilled water and ethanol as a solvent, a sol-gel process and calcination for template removal are performed to obtain the novel graphene-like magnesium silicide nanosheets.

Description

technical field [0001] The invention belongs to the technical field of semiconductor material preparation, in particular to a method for preparing graphene-like magnesium silicide nanosheets. Background technique [0002] Magnesium silicide is a narrow bandgap semiconductor material. Magnesium silicide has attracted the attention of researchers because of its good thermoelectric properties and strong corrosion resistance. Moreover, the raw materials of Si and Mg are abundant, the stratum reserves are large, and the price is low, which makes him a potential new structural material. Magnesium silicide is used in a wide range of fields, including power generation, refrigeration and heating, semiconductor manufacturing, laser, computer fields, military, aerospace, automobile manufacturing, and roommate chemical industries. Therefore, the preparation method of magnesium silicide is of great significance, especially for materials with two-dimensional morphology. [0003] It is m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/06B82Y30/00B82Y40/00
Inventor 施伟东蔡凡朋闫研唐玉斌
Owner JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD