Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of petal-like carbon nanosheets

A carbon nanosheet and petal-shaped technology, which is applied in the field of hydrothermal synthesis of petal-like carbon nanosheets, achieving the effect of simple preparation process

Active Publication Date: 2021-03-30
BEIJING UNIV OF TECH
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some unavoidable problems in the preparation methods of 2D carbon materials reported above. Therefore, it is necessary to find a new method for the preparation of 2D carbon materials with low raw material cost and simple operation process.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of petal-like carbon nanosheets
  • A kind of preparation method of petal-like carbon nanosheets
  • A kind of preparation method of petal-like carbon nanosheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 8.4g of zinc acetate and 0.9g of glucose and dissolve it in 25mL of deionized water. Under magnetic stirring, after the zinc acetate and glucose are completely dissolved, add 2.1g of silicon dioxide, continue stirring for 0.5h, and transfer the uniform suspension to Put the lining into a polytetrafluoroethylene lining, and put the lining into a stainless steel autoclave, heat it in water at 180°C for 24h, filter to obtain a brown solid, put the brown solid in a tube furnace and roast it at 800°C for 3h, and drop to room temperature to 20wt% HF to remove the template agent, washed with deionized water, and dried to obtain 1# sample.

Embodiment 2

[0029] Weigh 8.4g of zinc acetate and 1.8g of glucose and dissolve it in 25mL of deionized water. Under magnetic stirring, after the zinc acetate and glucose are completely dissolved, add 2.1g of silicon dioxide, continue stirring for 0.5h, and transfer the uniform suspension to Put the lining into a polytetrafluoroethylene lining, and put the lining into a stainless steel autoclave, heat it in water at 180°C for 24h, filter to obtain a brown solid, put the brown solid in a tube furnace and roast it at 800°C for 3h, and drop to room temperature to 20wt% HF to remove the template agent, washed with deionized water, and dried to obtain 2# sample.

Embodiment 3

[0031] Weigh 8.4g of zinc acetate and 3.6g of glucose and dissolve it in 25mL of deionized water. Under magnetic stirring, after the zinc acetate and glucose are completely dissolved, add 2.1g of silicon dioxide, continue stirring for 0.5h, and transfer the uniform suspension to Put the lining into a polytetrafluoroethylene lining, and put the lining into a stainless steel autoclave, heat it in water at 180°C for 24h, filter to obtain a brown solid, put the brown solid in a tube furnace and roast it at 800°C for 3h, and drop to room temperature to 20wt% HF to remove the template agent, washed with deionized water, and dried to obtain 3# sample.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
thicknessaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing petal-like carbon nanosheets and belongs to the technical field of material preparation. The method specifically comprises the following steps: putting acarbon precursor, an alkali zinc salt and powdered silica into deionized water according to a certain mass ratio, performing stirring so as to form a uniform suspension, transferring the suspension into a self-pressure kettle, performing hydrothermal treatment, further roasting the hydrothermal treatment product in an inert atmosphere, and removing a mold plate formed through in-situ self assembling by using an HF (hydrogen fluoride) solution, so as to obtain the petal-like carbon nanosheets.

Description

technical field [0001] The invention relates to a method for preparing petal-like carbon nanosheets by hydrothermal synthesis, and belongs to the technical field of material preparation. [0002] technical background [0003] Porous carbon materials have attracted widespread attention due to their high specific surface area, special pore size distribution, chemical inertness, and high electrical conductivity. It is of great significance to prepare carbon materials with special properties, which have broad potential application prospects in many fields such as catalysis, adsorption, and energy. The preparation process of porous carbon materials usually includes the carbonization of carbonaceous raw materials under an inert atmosphere and the activation of the corresponding carbonization products. Activation methods can be divided into physical activation and chemical activation. Carbon precursors come from a wide range of sources, such as: wood chips, nut shells, coal, organ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/15
CPCC01B32/15
Inventor 邱文革陈云孙家远白广梅何洪
Owner BEIJING UNIV OF TECH