Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of porous carbon silicon composite material

A silicon composite material and composite material technology, applied in animal feed, animal feed, animal husbandry, etc., can solve problems such as being unsuitable for large-scale mass production, high energy consumption by hydrothermal synthesis, serious particle agglomeration, etc., and achieve easy control. , the preparation method is simple, the effect of avoiding environmental pollution

Active Publication Date: 2020-10-30
张绍乙
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for preparing a porous silicon-carbon composite material. The method for preparing the porous silicon-carbon composite material should solve the problems of preparing silicon-carbon composite materials in the prior art. The particle agglomeration phenomenon of the method is very serious, the hydrothermal synthesis method has high energy consumption, low yield, and technical problems that are not suitable for large-scale batch production

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
  • A kind of preparation method of porous carbon silicon composite material
  • A kind of preparation method of porous carbon silicon composite material
  • A kind of preparation method of porous carbon silicon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Weigh 100g of bean cake, soybean flour and corn flour respectively, put them in a muffle furnace, raise the temperature to 600°C at a rate of 5°C / min under a nitrogen atmosphere, and carry out high-temperature carbonization at a constant temperature for 4 hours, and then continue to Cool naturally to room temperature under a nitrogen atmosphere; take out the cooled residue, weigh it, and calculate the weight ratio before and after carbonization;

[0035] 2. Taking silicon oxide as the silicon source material to prepare 800mAh / g silicon-carbon composite material as an example, the mass fraction of silicon-containing material components in this composite material is calculated according to the formula Q=1970*x+372*(1-x) So, x is 0.2678 (ie 1:2.734);

[0036] 3. Mix soybeans, bean cakes, and bean curd powder in a weight ratio of 1:1:1 as chicken feed raw materials. Chicken feed raw materials and silicon oxide are respectively crushed to 5-30 micron particles by a pulver...

Embodiment 2

[0046] 1. Weigh 100g of soybeans, bean cakes, and bean coriander powder respectively, place them in a muffle furnace, raise the temperature to 600°C at a heating rate of 5°C / min under a nitrogen atmosphere, and carry out high-temperature carbonization at a constant temperature for 4 hours, and then continue to Naturally cool to room temperature under the atmosphere; take out the cooled residue, weigh it, and calculate the weight ratio before and after carbonization;

[0047] 2. Taking monocrystalline silicon as the silicon source material and preparing a silicon-carbon composite material of 800mAh / g as an example, the mass fraction of silicon-containing material components in this composite material is according to the formula Q=4200*x+372*(1-x) Calculated, x is 0.1118 (ie 1:8.944);

[0048] 3. Mix soybeans, bean cakes, and bean curd powder according to the weight ratio of 1:1:1 as chicken feed raw materials. Chicken feed raw materials and monocrystalline silicon are respectiv...

Embodiment 3

[0058] 1. Weigh 100g of soy flour, corn flour and sorghum flour respectively, place them in a muffle furnace, raise the temperature to 600°C at a rate of 5°C / min under a nitrogen atmosphere, and carry out high-temperature carbonization at a constant temperature for 4 hours, and then continue Naturally cool to room temperature under a nitrogen atmosphere; take out the cooled residue, weigh it, and calculate the weight ratio before and after carbonization;

[0059] 2. Taking silicon carbide as the silicon source material to prepare a 450mAh / g silicon-carbon composite material as an example, the mass fraction of the silicon-containing material component in this composite material is calculated according to the formula Q=869*x+372*(1-x) So, x is 0.1569 (ie 1:6.372);

[0060] 3. Mix soybeans, bean cakes, and bean curd powder in a weight ratio of 1:1:1 as raw materials for chicken feed. The raw materials for chicken feed and materials containing silicon carbide are respectively pulv...

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

No PUM Login to View More

Abstract

The invention provides a preparation method of a porous carbon and silicon composite. Chickens are fed with chicken feed containing a silicon source, and chicken manure with silicon and organic carbonmixed primarily is obtained; then, the silicon-containing chicken manure is used for feeding earthworms, earthworm cast is collected, and a precursor of the porous carbon and silicon composite is obtained and subjected to drying and homogenization, and finally, the porous carbon and silicon composite is obtained through high-temperature roasting. The preparation method of the porous carbon and silicon composite is simple, besides, the environmental pollution problem caused by chicken manure can be effectively solved, and secondary utilization of the chicken manure with high added value is realized.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a preparation method of a porous silicon-carbon composite material. [0002] technical background [0003] The most commonly used synthesis methods for silicon-carbon composites are: chemical vapor deposition, sol-gel method, high-temperature pyrolysis, mechanical ball milling and hydrothermal synthesis. However, the process conditions of the chemical vapor deposition method are not easy to control in actual operation, the output is small, and large-scale industrialization is difficult; the carbon gel used in the sol-gel method has poor cycle stability compared with other carbon materials; the silicon-carbon composite material produced by the high-temperature pyrolysis method The dispersion of silicon in the medium is poor, and the particles are prone to agglomeration; the mechanical ball milling method is the mixing of two reactants under the action of mechanical force, and the part...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/56C04B35/622C04B35/626A01K67/033A23K10/12A23K10/26A23K10/30A23K10/37A23K20/20A23K50/00
CPCY02P60/87
Inventor 张绍乙张绍凡闵凡奇张道明党国举张全生
Owner 张绍乙