Preparation method of oxide porous material

A technology of porous materials and oxides, which is applied in the field of preparation of oxide porous materials, can solve the complex process of colloidal crystal templates, the difficulty of large-scale control of the properties of the target material, such as pore size, porosity and wall thickness, and difficulty in large-scale production and other problems to achieve the effect of avoiding the instability of the overall structure, improving stability and functionality, and suitable operation
CN105480950AActive Publication Date: 2016-04-13WUHAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF SCI & TECH
Publication Date
2016-04-13

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Abstract

The invention relates to a preparation method of an oxide porous material. According to the technical scheme, the method comprises the steps that an oxide precursor salt is dissolved in organic solvent according to the concentration ranging from 5 mol / L to 10 mol / L, stirring is conducted, and a solution I is obtained; a binder is added into the solution I according to the mass ratio of the oxide precursor salt to the binder of 1 to 0.01-0.1, stirring is conducted, and a solution II is obtained; a template agent is added into the solution II according to the mass ratio of the oxide precursor salt to the template agent of 1 to 0.1-0.35, stirring is conducted, and a solution III is obtained; liquid nitrogen freezing treatment is conducted on the solution III, drying is conducted in a vacuum freezing dryer, and a dried product is obtained; the product is put in a tube furnace, the temperature rapidly rises to 300-800 DEG C at the speed of 4-5 DEG C / min in an argon atmosphere or air atmosphere, heat preservation is conducted for 4-12 h, natural cooling is conducted along with the furnace, the template agent is removed, and the oxide porous material is obtained. The preparation method of the oxide porous material is convenient to operate and suitable for industrial production, and the hole size, the porosity and the wall thickness of the product can be regulated in a larger range.
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Description

Technical field

[0001] The invention belongs to the technical field of porous material preparation. Specifically, it relates to a method for preparing porous oxide materials. Background technique

[0002] Porous materials have the characteristics of high specific surface area, low relative density, good permeability, light weight, unique pore structure and excellent adsorption performance. They are used in many aspects such as energy storage and conversion, catalytic reaction, adsorption, separation, filtration, noise reduction and heat insulation. It is widely used. Therefore, the development of a simple and effective preparation method to control the pore structure of porous materials is the key to their application in these fields.

[0003] At present, porous materials are mainly prepared by colloidal crystal template method, including hard template method and soft template method. When using the colloidal crystal template method, it is usually necessary to prepare the colloi...

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
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