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Biomass carbon nanometer composite microsphere material as well as preparation method and application thereof

A nano-composite, biomass carbon technology, applied in the preparation/purification of carbon, hybrid capacitor electrodes, etc., can solve the problems of not being effectively and reasonably used, burning or arbitrary emissions, environmental pollution, etc., to achieve low cost, improve use The effect of performance and broad application prospects

Inactive Publication Date: 2019-05-14
安庆北化大科技园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lignin, as a natural renewable resource second only to cellulose reserves, has not been effectively and rationally utilized.
Less than 2% of the 150-180 million tons of industrial lignin produced in the world every

Method used

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  • Biomass carbon nanometer composite microsphere material as well as preparation method and application thereof
  • Biomass carbon nanometer composite microsphere material as well as preparation method and application thereof
  • Biomass carbon nanometer composite microsphere material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of preparation method of biomass carbon nanocomposite microsphere material, comprises the following steps:

[0029] (1) Add 400-600g, preferably 500g of water, 1.5g of polyvinyl alcohol and 3g of sodium lignosulfonate into a 1000ml beaker, stir and disperse in an oil bath at 0-35°C for 10-15min;

[0030] (2) Add 1.5g of ammonia water to the material in step (1), keep the temperature and stir to disperse for 10-15min, then add 2g of formaldehyde, heat up to 40-45°C, and react for 20-24h;

[0031] (3) Heating the reaction material in step (2) to 95-100°C, keeping it warm for 18-20h, then adding 1.5g of epoxy diluent 622, keeping it warm for 2-4h, and cooling down to 55-60°C after the reaction;

[0032] (4) Dissolve 3g of tetrabutyl titanate in 40-60g, preferably 50g, of ethanol, add dropwise to the reaction material in step (3), raise the temperature to 95-100°C, keep it warm for 8-10h, and then cool to At room temperature, nanocomp...

Embodiment 2

[0036] The difference between the preparation method of a biomass carbon nanocomposite microsphere material provided in this example and Example 1 is that 2 g of dispersant polyvinyl alcohol is added in step (1).

Embodiment 3

[0038] The difference between the preparation method of a biomass carbon nanocomposite microsphere material provided in this example and Example 1 is that 3 g of dispersant polyvinyl alcohol is added in step (1).

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Abstract

The invention discloses a biomass carbon nanometer composite microsphere material which is prepared from the following raw materials in parts by weight: 3-5 parts of sodium lignosulfonate, 2-5 parts of formaldehyde, 1.5-3 parts of ammonium hydroxide, 1.5-3 parts of a dispersant, 1.5-3 parts of an interface modifier, 400-600 parts of water, 40-60 parts of ethanol, 2-5 parts of a pore former and 2.5-5 parts of a modifier. The invention also discloses a preparation method and application of the biomass carbon nanometer composite microsphere material. The biomass carbon nanometer composite microsphere material disclosed by the invention has a suitable pore morphology and relatively high specific surface area, can be widely applied in the electrochemical field, has the advantages of energy saving and environmental protection, and improves the use performance of lignin-carbon materials.

Description

technical field [0001] The invention belongs to the technical field of negative electrode carbon materials, and in particular relates to a biomass carbon nanocomposite microsphere material and its preparation method and application. Background technique [0002] In recent years, the extensive use of fossil resources as fuel has seriously polluted the environment and caused the rapid depletion of these valuable resources. Biomass is a renewable resource due to its abundant reserves, and has attracted widespread attention as a raw material for obtaining clean energy and high value-added chemicals. Optimizing the utilization of biomass on the basis of an in-depth understanding of the composition and structure of biomass has important practical significance for reducing the use of fossil resources and reducing environmental pollution. Biomass is mainly composed of cellulose, hemicellulose and lignin. Cellulose and hemicellulose have been widely used in papermaking, sugar produ...

Claims

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Application Information

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IPC IPC(8): C01B32/05H01G11/34H01G11/44H01G11/24
Inventor 叶俊付嘉豪李效玉邱藤李星
Owner 安庆北化大科技园有限公司