Nitrogen doped carbon material and preparation method

A nitrogen-doped carbon and nitrogen source technology, applied in nano-carbon, carbon nanotubes and other directions, can solve the problems of strict conditions, complicated operation steps, low doping amount, etc., and achieves low equipment requirements, wide application prospects, large The effect of surface area

Inactive Publication Date: 2013-06-05
NORTHEAST FORESTRY UNIVERSITY
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Combining the above methods, there are the following problems: (1) most of them are high-temperature reactions, and the conditions are strict; (2) most of them are multi-step reactions, and the operation steps are cumbersome; (3)...

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
  • Nitrogen doped carbon material and preparation method
  • Nitrogen doped carbon material and preparation method
  • Nitrogen doped carbon material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present invention prepares nitrogen-doped carbon material according to the following steps:

[0039] (1) Preparation of prepolymer

[0040] 1. Weigh 0.5-1.0g of nitrogen source into a three-necked flask. The nitrogen source is an amine compound (phenylenediamine, melamine or aniline), add distilled water, heat and stir until the nitrogen source dissolves, and keep the temperature at 70-100°C ;

[0041] 2. Weigh the carbon source with an amount of 1 to 2 times the nitrogen source by molar ratio. The carbon source is furfural, salicylaldehyde, glucose, sucrose or hydroxymethylfurfural, add distilled water, and move it to a three-necked bottle after shaking. Continue to stir to make the system evenly mixed, and the reaction system polymerizes at a constant temperature for 15 to 30 minutes, then stop heating;

[0042] (2) Hydrothermal carbonization of mixed system

[0043] Move the above-mentioned prepolymerization system to the polytetrafluoroethylene liner bottle i...

Embodiment 2

[0049] The present invention prepares furfural-based nitrogen-doped carbon material according to the following steps:

[0050] (1) Preparation of prepolymer

[0051] 1. Weigh 0.5-1.0g of melamine into a three-neck bottle, add 30ml of distilled water, heat and stir until the melamine dissolves, and keep the temperature at 70-100°C;

[0052] 2. Weigh furfural at a molar ratio of 1:1, add 10ml of distilled water, shake it and move it to a three-neck flask, continue stirring to make the system evenly mixed, and the reaction system polymerizes at a constant temperature for 15 to 30 minutes, then stop heating;

[0053] (2) Hydrothermal carbonization of mixed system

[0054] Move the above-mentioned prepolymerization system to the polytetrafluoroethylene liner bottle in the reactor, put the reactor into an oven with a set temperature of 110-200°C, take it out after reacting for 12-24 hours, and cool to room temperature;

[0055] (3) Separation and drying of reaction products

[00...

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
The average diameteraaaaaaaaaa
Specific surface areaaaaaaaaaaa
Apertureaaaaaaaaaa
Login to view more

Abstract

The invention relates to a nitrogen doped carbon material and a preparation method, and relates to the carbon material and the preparation method. The nitrogen doped carbon material is prepared by a nitrogen source and a carbon source through employing a hydrothermal method with one step synthesis, the preparation method comprises the following steps: weighting the nitrogen source in a three-neck flask, adding distilled water, heating and stirring to dissolve the nitrogen source, weighting the carbon source, adding distilled water for shaking and then moving to the three-neck flask, continuously stirring, performing polymerization on a reaction system at a constant temperature, moving a performed polymer system to a gallipot in polytetrafluoroethylene in a reaction vessel, performing centrifugation on the obtained product after hydrothermal carbonization, placing the separated sediment in a baking oven, and cooling to the room temperature to obtain the nitrogen doped carbon material. The carbon material is prepared by a hydrothermal method with one step synthesis, the reaction condition is wild, the step is simple, the equipment requirement is low, the production cost is reduced, and the nitrogen content of the prepared nitrogen doped carbon material is high, the nitrogen doped carbon material has large surface area, and provides guarantee for good applicability.

Description

technical field [0001] The invention relates to a carbon material and a preparation method thereof, in particular to an N-doped carbon material and a preparation method thereof. Background technique [0002] The diversification of carbon material structure and its excellent energy storage, adsorption, loading, catalytic and other properties have attracted the attention and research of many scholars. In recent years, carbon materials have been widely used in many fields such as environmental protection, chemical industry, aerospace, biomedicine, etc. application. Compared with pure carbon materials, carbon materials modified by heteroatom doping show better performance in some aspects, and are more deeply applied in corresponding fields. [0003] At present, N-doped carbon materials are an important aspect of research on atomic doping modification of carbon materials. Compared with C atoms, N atoms have one more electron in the outer layer. Therefore, compared with pure car...

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
IPC IPC(8): C01B31/00C01B31/02C01B32/16
Inventor 李志国陈秀娟李晓丽
Owner NORTHEAST FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap