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Method of manufacturing composite catalyst

A manufacturing method and composite technology, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of the reduction of the surface area of ​​the catalyst carrier of the active unit, and achieve an improvement Electron interaction, high active area, enhanced conductivity

Inactive Publication Date: 2021-09-07
黄炳照
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the catalyst material is treated at high temperature, the surface area of ​​the active unit and the catalyst carrier will be greatly reduced.
This will have an adverse effect on the application of the catalyst

Method used

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  • Method of manufacturing composite catalyst
  • Method of manufacturing composite catalyst
  • Method of manufacturing composite catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] First, 0.1 g of Pt / TiO 2 The catalyst composition is placed in an L-shaped tube, and 99.99% H is passed through at a rate of 40 ml / min. 2 , and heated to 200°C at a heating rate of 10°C / min, the Pt / TiO 2 The catalyst composition was heated for 1 hour. Next, 0.1 g of Pt / TiO treated with pure hydrogen 2 The catalyst composition and 0.033 ml of distilled aniline monomer were added into 50 ml of 1M hydrochloric acid, and uniformly mixed for 1 hour by ultrasonic vibration. Afterwards, the above mixed solution was mixed with ammonium persulfate solution (0.0817 g of ammonium persulfate was dissolved in 50 ml of 1M hydrochloric acid), and uniformly stirred at 5° C. at 700 rpm for 20 hours. Then, the solution was sucked dry using a vacuum concentrator to obtain a flake solid. Wash the flaky solid with a mixed solution of distilled water and alcohol (volume ratio 1:1) to make the flaky solid neutral. Vacuum drying at 80° C. for 8 hours to obtain a composite catalyst precurs...

Embodiment 2

[0042] A method similar to that of Example 1 was used to manufacture the composite catalyst, the difference being that the calcination temperature of Example 2 was 550°C.

Embodiment 3

[0044] A method similar to that of Example 1 was used to manufacture the composite catalyst, the difference being that the calcination temperature of Example 3 was 750°C.

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Abstract

A method of manufacturing a composite catalyst is provided. The method includes the following steps. A catalyst composition including an inorganic support and a metallic nano particle attached to a surface of the inorganic support is provided. The catalyst composition, an organic material, and an acidic solvent are mixed to obtain a first mixed solution. An oxidant and the first mixed solution are mixed to obtain a second mixed solution. A drying process is performed on the second mixed solution to remove a solvent in the second mixed solution and to obtain a solid composite catalyst precursor. A calcination process is performed on the composite catalyst precursor to form a carbon-decorated composite catalyst.

Description

technical field [0001] The invention relates to a method for manufacturing a catalyst, in particular to a method for manufacturing a composite catalyst. Background technique [0002] Generally, the catalyst support may include a carbon support (such as carbon black or carbon nanotubes) or a non-carbon support (such as an oxide material). The disadvantage of using a carbon carrier as a catalyst carrier is that it is more prone to carbon corrosion. The corrosion of the carbon support will cause the active units (such as noble metal nanoparticles) attached to the surface of the carbon support to fall off, thereby causing the loss of the active units. Corrosion of the carbon support can also lead to aggregation of noble metal nanoparticles, thereby reducing the reaction area. [0003] Although the problem of carbon corrosion can be avoided by using a non-carbon carrier as a catalyst carrier, the electrical conductivity of the non-carbon carrier is poor. After the non-carbon c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J37/18B01J37/08B01J37/06
CPCB01J23/42B01J37/18B01J37/084B01J37/06B01J35/33B01J35/45B01J21/063B01J21/18B01J37/0219B01J37/0236B01J35/23
Inventor 黄炳照苏威年蔡承佑黄筱君蔡孟哲潘俊仁
Owner 黄炳照