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Method for preparing nitrogen-doped porous carbon material on the basis of folic acid

A technology of porous carbon and nitrogen doping, which is applied in the field of supercapacitor electrode carbon materials, can solve the problems of not being green and environmentally friendly, and achieve the effects of low requirements for reaction conditions, short reaction cycle, and uniform distribution of pore structure

Inactive Publication Date: 2015-12-09
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of silicon oxide template usually requires corrosive acids such as hydrofluoric acid to remove the template, which is not green and environmentally friendly

Method used

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  • Method for preparing nitrogen-doped porous carbon material on the basis of folic acid
  • Method for preparing nitrogen-doped porous carbon material on the basis of folic acid
  • Method for preparing nitrogen-doped porous carbon material on the basis of folic acid

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Experimental program
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Effect test

Embodiment 1

[0025] Weigh folic acid and zinc acetate according to a mass ratio of 3:1 and grind them thoroughly, then move them to a porcelain boat in a horizontal tube furnace, and feed argon for 30 minutes, then heat the horizontal tube furnace at a heating rate of 5°C / min to 1000° C., and kept for 4 hours in an argon atmosphere; the obtained product was washed with deionized water and then vacuum-dried at 120° C. for 12 hours to obtain a nitrogen-doped porous carbon material.

Embodiment 2

[0027] Weigh folic acid and zinc acetate according to the mass ratio of 1:2 and grind them thoroughly, then move them to a porcelain boat in a horizontal tube furnace, pass through argon for 30 minutes, and then heat the horizontal tube furnace at a heating rate of 10°C / min to 1200° C., and kept in an argon atmosphere for 2 hours; the obtained product was washed with deionized water and then vacuum-dried at 120° C. for 12 hours to obtain a nitrogen-doped porous carbon material.

Embodiment 3

[0029] Weigh folic acid and zinc acetate according to the mass ratio of 1:5 and grind them thoroughly, then move them to a porcelain boat in a horizontal tube furnace, pass through argon for 30 minutes, and then heat the horizontal tube furnace at a heating rate of 15°C / min to 950° C., and kept for 10 h in an argon atmosphere; the obtained product was washed with deionized water and then vacuum-dried at 120° C. for 12 hours to obtain a nitrogen-doped porous carbon material.

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Abstract

The present invention discloses a method for preparing a nitrogen-doped porous carbon material on the basis of folic acid, the folic acid is used as carbon and nitrogen sources, zinc acetate is used as a template agent, and the nitrogen-doped porous carbon material is prepared by a direct template-carbonization-nitridation path. Through regulation of folic acid and zinc acetate mass ratio, carbonization temperature, carbonization time and heating rate and other factors, the nitrogen-doped porous carbon material can be prepared by one-step template-carbonization-nitridation process (without subsequent pickling and other treatment processes). The production process method has the advantages of being simple, easy to operate, short in synthetic cycle, and the like, and is suitable for large-scale industrial production of electrode supercapacitor porous carbon materials.

Description

1. Technical field [0001] The invention relates to a method for preparing nitrogen-doped porous carbon materials based on folic acid, and belongs to the field of supercapacitor electrode carbon materials. 2. Background technology [0002] As a new type of energy storage device, supercapacitor has the characteristics of high power, long cycle life, fast charging and discharging speed, high efficiency, no pollution to the environment, wide operating temperature range and high safety, and has become a hot spot in the field of new energy applications. As the most important component of supercapacitors, the electrode material's composition and structure play a crucial role in the performance of supercapacitors. Carbon electrode materials, as electrode materials for supercapacitors, are the earliest and most mature electrode materials. [0003] At present, there are various synthesis methods of porous carbon materials, but most of them require physical activation or chemical acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 张忠洁曹晏
Owner ANHUI UNIVERSITY
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