Synthetic method of mesopore metallic oxide, mixed metallic oxide and metallic phosphate serial microballons using mesopore carbon microballons as form

A metal phosphate, mixed metal technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of difficult to achieve morphology control, poor controllability, limitations, etc. The effect of application prospect, large room for modulation, and wide application range

Inactive Publication Date: 2003-10-15
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the framework of mesoporous spheres that have been reported so far is composed of inert silica. To further expand its application in catalysis, the method of post-processing and loading active components must be adopted, which limits this type of mesoporous particles to some extent. ball application
For the synthesis of non-silicon framework mesoporous materials, the oxides or phosphates synthesized by the traditional sol-gel method induced by surfactants generally have poor thermal stability (some need to add rare earth elements to improve their thermal stability). The thermal stability of the framework), and the synthesis conditions are complex, the controllability is poor, and the shape control of this type of material is also difficult to achieve

Method used

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  • Synthetic method of mesopore metallic oxide, mixed metallic oxide and metallic phosphate serial microballons using mesopore carbon microballons as form
  • Synthetic method of mesopore metallic oxide, mixed metallic oxide and metallic phosphate serial microballons using mesopore carbon microballons as form
  • Synthetic method of mesopore metallic oxide, mixed metallic oxide and metallic phosphate serial microballons using mesopore carbon microballons as form

Examples

Experimental program
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Effect test

example 1

[0030] A dilute sulfuric acid solution of sucrose with a concentration of 1 wt% was added to the mesoporous silica microspheres. Stir at room temperature for 24 h, dry after centrifugation. Carbonize at 900°C for 5 hours in a nitrogen atmosphere to obtain carbon-silicon composite microspheres, which are soaked in 40 wt% hydrofluoric acid, washed sequentially with a large amount of water and isopropanol, and dried at 100°C. Mesoporous carbon microspheres were obtained.

example 2

[0032] Treat according to the method of Example 1, the concentration of the added sucrose dilute sulfuric acid solution is 50wt%, and obtain mesoporous carbon microspheres.

example 3

[0034] According to the method of Example 1, the carbonization temperature is 200° C. and the time is 8 hours, and the morphology of the obtained mesoporous carbon microspheres changes.

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PUM

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Abstract

The present invention the method of forming mesoporous metal oxide, mixed metal oxide and metal phosphate microballoon through synthesizing small mesoporous carbon ball with mesoporous silicon microballoon as mother body, perfusing the mixture of metal alkoxide, metal chloride and phaophate, drying and roasting. The mesoporous metal oxide, phosphate, etc. have important uses in catalysis, adsorption and other fields owing to their high specific surface area, nanometer level pores, great amount of active components on the pore wall and other features. Through said process, serial mesoporous microballoons including titania, zirconia, alumina, mixed titanium-zirconium oxide, mixed titanium-silicon oxide, zirconium phosphate, titanium phosphate, aluminum phosphate, tin phosphate and ferric phosphate may be synthesized.

Description

technical field [0001] The invention is a kind of mesoporous carbon ball synthesized by using mesoporous silicon oxide ball as the parent body to carry out perfusion of metal alkoxide, metal chloride-phosphate ester mixture, and form mesoporous metal oxide and metal oxide after drying and roasting. Phosphate microspheres method. Mesoporous oxides and phosphate microspheres are new materials with high specific surface area, nanopores, and good thermal stability. Magnetic materials and other fields have broad application prospects. Background technique [0002] Mesoporous microspheres are a new type of material with high specific surface area, pore size in the nanometer range, and uniform distribution of ball size in the micron range. However, the framework of mesoporous spheres that have been reported so far is composed of inert silica. To further expand its application in catalysis, the method of post-processing and loading active components must be adopted, which limits t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/14B01J35/10C04B35/52C04B35/622C04B38/00
Inventor 任楠董安钢唐颐王波王德举张亚红山巍
Owner FUDAN UNIV
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