Aluminum matrix-mesoporous alumina composite material and preparation method and application of aluminum matrix-mesoporous alumina composite material

A technology of mesoporous alumina and composite materials, applied in chemical instruments and methods, from carbon oxides to hydrocarbons, metal/metal oxides/metal hydroxide catalysts, etc., can solve problems such as mass transfer limitations, and achieve penetration The effect of high yield, simple preparation method and low cost

Active Publication Date: 2014-11-19
易高卓新节能技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned problems and demands existing in the prior art, the object of the present invention is to provide an aluminum matrix-mesoporous alumina composite material and its preparation method and application, so as to solve the problem of mesoporous alumina material in the energy chemical reaction process. Problems such as strong thermal effect and mass transfer limitation, and meet the special requirements of environmental catalysis (such as VOCs catalytic combustion) process for high flux and low pressure drop

Method used

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  • Aluminum matrix-mesoporous alumina composite material and preparation method and application of aluminum matrix-mesoporous alumina composite material
  • Aluminum matrix-mesoporous alumina composite material and preparation method and application of aluminum matrix-mesoporous alumina composite material
  • Aluminum matrix-mesoporous alumina composite material and preparation method and application of aluminum matrix-mesoporous alumina composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0047] a) Weigh 5 grams of aluminum fiber (the fiber diameter is 80 microns, and the length is 5-10 mm), soak it with a sodium hydroxide aqueous solution with a concentration of 2.0 wt% at room temperature, wash it with distilled water, and dry it for later use;

[0048] b) Put the aluminum fiber obtained in step a) into a 100 ml reaction kettle lined with polytetrafluoroethylene, add distilled water to completely submerge the aluminum fiber, seal the kettle and place it in an oven at 150°C for static hydrothermal treatment for 24 Hours, after washing with distilled water and drying, the aluminum matrix-mesoporous pseudo-boehmite composite material is obtained, which is recorded as: Al80-fiberAlOOH;

[0049] c) Calcining the Al80-fiberAlOOH obtained in step b) at 650°C in air for 0.5 hours to obtain the aluminum matrix-mesoporous alumina composite material, and the mesoporous alumina generated by weighing accounts for 4.6wt% of the total weight of the material , and the rest a...

Embodiment 2

[0056] a) Weigh 5 grams of aluminum fibers (the diameter of the fibers is 40 microns, and the length is 5 to 10 mm), soak them in an aqueous hydrochloric acid solution with a concentration of 1.0 wt % at room temperature, wash them with distilled water, and dry them for later use;

[0057] b) Put the aluminum fiber obtained in step a) into a 100 ml reaction kettle lined with polytetrafluoroethylene, add distilled water to completely submerge the aluminum fiber, seal the kettle and place it in an oven for static hydrothermal treatment at 180°C for 12 Hours, after washing with distilled water and drying, the aluminum matrix-mesoporous pseudo-boehmite composite material is obtained, which is recorded as: Al40-fiberAlOOH;

[0058] c) Calcining the Al40-fiberAlOOH obtained in step b) at 500°C in air for 8 hours to obtain the aluminum matrix-mesoporous alumina composite material, and the mesoporous alumina generated by weighing accounts for 15.3wt% of the total weight of the material...

Embodiment 3

[0063] a) Weigh 10 grams of aluminum wire (1.2 mm in diameter), soak it with a hydrochloric acid aqueous solution with a concentration of 1.0 wt% at room temperature, wash it with distilled water, and dry it for later use;

[0064] b) Put the aluminum wire obtained in step a) into a 100 ml reaction kettle lined with polytetrafluoroethylene, add distilled water to completely submerge the aluminum wire, seal the kettle and place it in an oven at 110°C for static hydrothermal treatment 72 Hours, after washing with distilled water and drying, the aluminum matrix-mesoporous pseudo-boehmite composite material is obtained, which is recorded as: Al-wireAlOOH;

[0065] c) Calcining the Al-wireAlOOH obtained in step b) at 600°C for 5 hours in the air to obtain the aluminum matrix-mesoporous alumina composite material, and the mesoporous alumina generated by weighing accounts for 5.6wt% of the total weight of the material , and the rest are aluminum matrix, so the obtained composite mate...

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Abstract

The invention discloses an aluminum matrix-mesoporous alumina composite material and a preparation method and application of the aluminum matrix-mesoporous alumina composite material. The composite material consists of an aluminum matrix and a mesoporous alumina layer growing on the surface of the aluminum matrix, wherein the mass percent of mesoporous alumina is 0.05-50%, and the most probable pore diameter of a mesopore is 2-20nanometers. The preparation method of the composite material comprises the following steps: firstly, carrying out in-situ growth on pseudo-boehmite on the surface of the aluminum matrix via the reaction of aluminum and water under a hydrothermal condition, and then carrying out high-temperature roasting and crystal transformation on the generated pseudo-boehmite. The composite material provided by the invention has the advantages of good heat conductivity, high permeability, easiness in forming, filling and storage, and the like, is an ideal catalyst carrier, and can be used for preparing a catalyst loading activity metal or activity metal and auxiliary metal oxides as the catalyst carrier.

Description

technical field [0001] The invention relates to an aluminum matrix-mesoporous alumina composite material and its preparation method and application, in particular, it relates to a method of realizing a mesoporous pseudo-boehmite layer on an aluminum matrix through the reaction of aluminum and water under hydrothermal conditions. An aluminum matrix-mesoporous alumina composite material formed by in-situ growth on the surface and transformed by high-temperature calcination and its application as a catalyst carrier. Background technique [0002] Alumina is an excellent catalyst or catalyst carrier, which is widely used in energy, chemical industry, environmental protection and other fields. In recent years, due to its high specific surface area, narrow pore size distribution and continuously adjustable pore size, the related synthesis and application in adsorption, separation, catalyst and catalyst carrier have attracted people's attention. Great interest. According to the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/04B01J32/00B01J23/60B01J23/889C01B3/32C07C1/04C07C11/02
Inventor 路勇王纯正韩璐蓬赵安琪刘晔
Owner 易高卓新节能技术(上海)有限公司
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