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High-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite material and preparation method and application thereof

A technology of mesophase carbon microspheres and nanotubes, which is applied in electrical components, electrolytic capacitors, capacitors, etc., and can solve problems such as unsuitability for industrial mass production, application restrictions, and high price of carbon nanotubes

Inactive Publication Date: 2012-12-12
天津市贝特瑞新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon nanotubes are expensive, not suitable for industrial mass production, and their applications are limited

Method used

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  • High-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite material and preparation method and application thereof
  • High-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite material and preparation method and application thereof
  • High-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 High activity TiO 2 Preparation of Nanotube / Mesophase Carbon Microsphere Composite

[0056] (1) Weigh 500g of mesophase carbon microspheres and 1000g of KOH, mix them evenly, add water to make a paste, stir until the mixture is uniform, and put it into a carbonization furnace after vacuum drying at 80°C, N 2 Under the protection of gas, heat up to 1050°C, keep warm for 3 hours for carbonization activation, and obtain alkali-activated mesophase carbon microspheres;

[0057] (2) Weigh 200gTiO 2 powder, put it into 1mol / L NaOH solution, stir until dissolved, and the prepared TiO 2 NaOH solution;

[0058] (3) Under stirring conditions, the alkali-activated mesophase carbon microspheres prepared in step (1) and the TiO 2 Place the NaOH solution in a hydrothermal reaction kettle and mix evenly, add 600ml of distilled water, seal it, react at 110°C for 8 hours, cool, filter, wash the insoluble matter repeatedly with distilled water until th...

Embodiment 2

[0061] Example 2 High activity TiO 2 Preparation of Nanotube / Mesophase Carbon Microsphere Composite

[0062] (1) Weigh 500g of mesophase carbon microspheres and 500g of KOH, mix them evenly, add water to make a paste, stir until the mixture is uniform, and put it into a carbonization furnace after vacuum drying at 80°C, N 2 Under the protection of gas, heat up to 1000°C, keep warm for 3 hours for carbonization activation, and obtain alkali-activated mesophase carbon microspheres;

[0063] (2) Weigh 250gTiO 2 powder, put it in 1mol / L NaOH solution, stir until dissolved, and the prepared TiO 2 NaOH suspension;

[0064] (3) Under stirring conditions, the alkali-activated mesophase carbon microspheres prepared in step (1) and the TiO 2 Place the NaOH solution in a hydrothermal reaction kettle and mix evenly, add 600ml of distilled water, seal it, react at 105°C for 8h, cool, filter, wash the insoluble matter repeatedly with distilled water until the pH ...

Embodiment 3

[0066] Example 3 High activity TiO 2 Preparation of Nanotube / Mesophase Carbon Microsphere Composite

[0067] (1) Weigh 500g of mesophase carbon microspheres and 1000g of NaOH, mix them uniformly, add water to make a paste, stir until the mixture is uniform, and dry it in vacuum at 80°C, then place it in a carbonization furnace, N 2 Under the protection of gas, the temperature was raised to 1050°C and kept for 3 hours for carbonization and activation to obtain alkali-activated mesophase carbon microspheres.

[0068] (2) Weigh 150gTiO 2 powder, put it in 1mol / L NaOH solution, stir until dissolved, and the prepared TiO 2 NaOH suspension;

[0069] (3) Under stirring conditions, the alkali-activated mesophase carbon microspheres prepared in step (1) and the TiO 2 Place the NaOH solution in a hydrothermal reaction kettle and mix evenly, add 600ml of distilled water, seal it, react at 110°C for 6h, cool, filter, wash the insoluble matter repeatedly with di...

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Abstract

The invention relates to a high-activity TiO2 nanometer pipe / intermediate phase carbon microsphere composite material and a preparation method and application thereof. The high-activity TiO2 nanometer pipe / intermediate phase carbon microsphere composite is obtained by depositing TiO2 nanometer pipes on surfaces of intermediate phase carbon microspheres performed with alkali activating treatment in a hydrothermal method. The obtained high-activity TiO2 nanometer pipe / intermediate phase carbon microsphere composite has large specific surface area and strong adsorption / desorption performance, is used as electrode materials of a super capacitor, remarkably improves the specific surface area, utilization rate, specific capacitance and conducting performance of electrode materials in aqueous electrolyte and organic electrolyte and prolongs service life of the super capacitor. Further the preparation method of the high-activity TiO2 nanometer pipe / intermediate phase carbon microsphere composite has the advantages of being easy in process, low in manufacture cost and the like, and raw materials are low in price.

Description

Technical field [0001] The present invention belongs to the field of electrode materials, which involves a high -active TIO 2 Nano -pipe / middle carbon microsphere composite electrode material and its preparation methods and applications. Background technique [0002] The energy storage performance of supercapacitors is between traditional capacitors and secondary batteries. It has high power density, long circulation life, long -current fast charging and discharge, large multiplied charge and discharge performance, wide working temperature range, safe, pollution -free, etc.Features are extensive application prospects in the fields of electric vehicles, storage, miniature computers, aerospace and other fields. [0003] Super capacitors are mainly composed of electrolytes and electrode materials. Among them, electrode materials have become an important factor affecting its electrochemical properties.Multi -porous carbon material is the core material of carbon -based supercapacito...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/058
CPCY02E60/13
Inventor 杨红强苗艳丽张俊平李花
Owner 天津市贝特瑞新能源科技有限公司
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