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Nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and preparation and application thereof

A carbon nanoparticle, porous carbon material technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as high price and complex process, and achieve simple methods, low costs, and simplification. effect of the process

Inactive Publication Date: 2019-05-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high raw material price, complex process, and strong acid and strong alkali etching in the traditional porous carbon preparation method, the present invention provides a carbon nanoparticle-modified nitrogen-doped 3D porous carbon material and a preparation method thereof

Method used

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  • Nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and preparation and application thereof
  • Nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and preparation and application thereof
  • Nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and preparation and application thereof

Examples

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Effect test

Embodiment 1

[0032] Disperse 2g of eucalyptus in 50mL of deionized water, and carry out hydrothermal carbonization treatment in a hydrothermal reaction kettle. wood; the eucalyptus wood pretreated by hydrothermal carbonization was carbonized in an ammonia atmosphere, the carbonization temperature was 1000°C, the carbonization was kept for 2 hours, and the heating rate was 5°C / min. Nitrogen-doped 3D porous carbon materials decorated with carbon nanoparticles.

Embodiment 2

[0034] Disperse 2 g of eucalyptus in 50 mL of deionized water, and carry out hydrothermal carbonization treatment in a hydrothermal reaction kettle. The hydrothermal carbonization temperature is 200 ° C, and the hydrothermal carbonization time is 24 hours; after that, filter and wash to obtain hydrothermal carbonization pretreated eucalyptus wood; the eucalyptus wood pretreated by hydrothermal carbonization was carbonized in an ammonia atmosphere, the carbonization temperature was 1000°C, the carbonization was kept for 2 hours, and the heating rate was 5°C / min. Nitrogen-doped 3D porous carbon materials decorated with carbon nanoparticles.

Embodiment 3

[0036] Disperse 2g of eucalyptus in 50mL of deionized water, and carry out hydrothermal carbonization treatment in a hydrothermal reaction kettle. Wood; the eucalyptus wood pretreated by hydrothermal carbonization was carbonized in an ammonia atmosphere, the carbonization temperature was 900 °C, the carbonization was kept for 2 hours, and the heating rate was 5 °C / min. Nitrogen-doped 3D porous carbon materials decorated with carbon nanoparticles.

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Abstract

The invention belongs to the technical field of battery catalyst, and discloses a nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and a preparation and an application thereof. The preparation method includes the following steps: Eucalyptus wood is hydrothermally carbonized in water in a hydrothermal reactor to obtain pre-hydrothermally-carbonized Eucalyptus wood, whereinthe hydrothermal carbonization is carried out at the temperature of 150-200 DEG C; and (2) the pre-hydrothermally-carbonized Eucalyptus wood is carbonized in an ammonia atmosphere to obtain a nitrogen-doped 3D porous carbon material modified by carbon nanoparticles, wherein the carbonization is carried out at the temperature of 900-1100 DEG C. The method of the invention is simple and low in cost,and the porous carbon material prepared has excellent catalytic activity. The porous carbon material is used as an oxygen reduction catalyst to catalyze the cathodic oxygen reduction reaction in fuelcells.

Description

technical field [0001] The invention belongs to the technical field of battery catalysts, and in particular relates to a nitrogen-doped 3D porous carbon material modified with carbon nanoparticles prepared by hydrothermally pretreating eucalyptus and a method thereof. The carbon material is used as a catalyst, especially an oxygen reduction catalyst, to electrocatalyze the cathode oxygen reduction reaction in the fuel cell. Background technique [0002] In recent years, environmental pollution and shortage of fossil fuels have seriously restricted the development of the world economy and the stability of the ecological environment. The development of green energy will play a key role in solving these problems. Creating chemical devices from renewable compounds such as biomass to capture and store these energies is a crucial step in the process. Carbon materials are considered as the most important electrode materials for chemical devices such as supercapacitors and recharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/96B82Y30/00B82Y40/00
CPCY02E60/50
Inventor 彭新文张磊钟林新吴嘉敏徐勇康孙润仓
Owner SOUTH CHINA UNIV OF TECH
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