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Method for preparing nitrogen-doped graphene

A nitrogen-doped graphene, graphene technology, applied in graphene, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of complex process, poor precision, and unenvironmental protection

Inactive Publication Date: 2018-07-13
程桂平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The method for preparing nitrogen-doped graphene in the prior art is complicated, has poor precision, and is not environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing nitrogen-doped graphene, comprising:

[0023] Step 1: Weigh 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2g of sodium bicarbonate into a 1000mL beaker, slowly add 150mL of concentrated sulfuric acid into the beaker, place the beaker in an ice-water bath, and magnetically stir for 1h;

[0024] Step 2: Weigh 15g of potassium permanganate and 2g of sodium permanganate, slowly add to the beaker and keep stirring, keep the temperature of the mixture in the beaker below 30°C, then place the beaker at room temperature and keep stirring for 24h;

[0025] Step 3: Place the beaker in an ice-water bath, slowly add 300mL of deionized water and keep stirring, keep the temperature of the mixture in the beaker below 98°C, then slowly add 30mL of 30% hydrogen peroxide aqueous solution and keep stirring;

[0026] Step 4: Put the mixed solution into a centrifuge tube, centrifuge at 8000rpm for 30min, remove the upper liquid, take out the precip...

Embodiment 2

[0040] A method for preparing nitrogen-doped graphene, comprising:

[0041] Step 1: Weigh 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2.2g of sodium bicarbonate into a 1000mL beaker, slowly add 150mL of concentrated sulfuric acid into the beaker, place the beaker in an ice-water bath, and magnetically stir for 1h;

[0042] Step 2: Weigh 15g of potassium permanganate and 2g of sodium permanganate, slowly add to the beaker and keep stirring, keep the temperature of the mixture in the beaker below 30°C, then place the beaker at room temperature and keep stirring for 24h;

[0043] Step 3: Place the beaker in an ice-water bath, slowly add 300mL of deionized water and keep stirring, keep the temperature of the mixture in the beaker below 98°C, then slowly add 30mL of 30% hydrogen peroxide aqueous solution and keep stirring;

[0044] Step 4: Put the mixed solution into a centrifuge tube, centrifuge at 8000rpm for 30min, remove the upper liquid, take out the prec...

Embodiment 3

[0058] A method for preparing nitrogen-doped graphene, comprising:

[0059] Step 1: Weigh 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2.3g of sodium bicarbonate into a 1000mL beaker, slowly add 150mL of concentrated sulfuric acid into the beaker, place the beaker in an ice-water bath, and magnetically stir for 1h;

[0060] Step 2: Weigh 15g of potassium permanganate and 2g of sodium permanganate, slowly add to the beaker and keep stirring, keep the temperature of the mixture in the beaker below 30°C, then place the beaker at room temperature and keep stirring for 24h;

[0061] Step 3: Place the beaker in an ice-water bath, slowly add 300mL of deionized water and keep stirring, keep the temperature of the mixture in the beaker below 98°C, then slowly add 30mL of 30% hydrogen peroxide aqueous solution and keep stirring;

[0062] Step 4: Put the mixed solution into a centrifuge tube, centrifuge at 8000rpm for 30min, remove the upper liquid, take out the prec...

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PUM

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Abstract

The invention provides a method for preparing nitrogen-doped graphene. The method comprises the steps of step 1, 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2g of sodium bicarbonate are weighed and placed in a beaker with the capacity being 1000 mL, 150 mL of concentrated sulfuric acid is slowly added into the beaker, the beaker is placed in an ice water bath, and magnetic stirring is conducted for 1 hour; and step 2, 15g of potassium permanganate and 2g of sodium permanganate are weighed and slowed added into the beaker and stirred continuously, the temperature of the mixture in the beaker is maintained to be 30 DEG C or below, then the beaker is placed at the room temperature, and stirring is conduced continuously for 24 hours.

Description

technical field [0001] The invention relates to a method for preparing nitrogen-doped graphene. Background technique [0002] The method for preparing nitrogen-doped graphene in the prior art has complicated process, poor precision and is not environmentally friendly. Contents of the invention [0003] A method for preparing nitrogen-doped graphene, comprising: [0004] Step 1: Weigh 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2g of sodium bicarbonate into a 1000mL beaker, slowly add 150mL of concentrated sulfuric acid into the beaker, place the beaker in an ice-water bath, and magnetically stir for 1h; [0005] Step 2: Weigh 15g of potassium permanganate and 2g of sodium permanganate, slowly add to the beaker and keep stirring, keep the temperature of the mixture in the beaker below 30°C, then place the beaker at room temperature and keep stirring for 24h; [0006] Step 3: Place the beaker in an ice-water bath, slowly add 300mL of deionized water a...

Claims

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Application Information

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IPC IPC(8): C01B32/192
CPCC01B2204/22
Inventor 程桂平
Owner 程桂平
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