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Metal-loaded titanium-based catalyst and preparation method thereof

A supported catalyst and supported technology, applied in the direction of metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the constraints of catalyst performance improvement and application, metal particle size Difficult to control and other problems, to achieve excellent catalytic performance, easy control of preparation parameters, and convenient operation

Inactive Publication Date: 2012-06-13
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the metal particles supported by the existing catalysts is difficult to control, which seriously restricts the improvement and application of catalyst performance.

Method used

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  • Metal-loaded titanium-based catalyst and preparation method thereof
  • Metal-loaded titanium-based catalyst and preparation method thereof
  • Metal-loaded titanium-based catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] At room temperature, 48.2 grams of titanium trichloride (20wt%, TiCl 3 ) And 120.5 g of saturated sodium chloride solution were placed in a 200 mL three-necked flask, and nitrogen was introduced, and the oxygen in the reaction system was removed by magnetic stirring for 30 minutes. Then it was heated in an oil bath at a constant temperature of 100°C for 12 hours. Wait for the flask to gradually cool to room temperature, quickly wash the obtained precipitate, and then redisperse it into 120 mL of distilled water, stir it magnetically, and heat to 80°C. Then 3 mL of 0.02M palladium chloride solution was injected, and after 15 minutes of reaction, 21 mL of palladium chloride solution of the same concentration was injected again. Keep the temperature at a constant temperature for 12 hours to obtain a precipitate. The above reaction processes are all carried out in a nitrogen atmosphere. The precipitate was washed with deionized water several times, and dried in an oven at 6...

Embodiment 2

[0040] At room temperature, 48.2 grams of titanium trichloride (20wt%, TiCl 3 ) And 120.5 g of saturated sodium chloride solution were placed in a 200 mL three-necked flask, and nitrogen was introduced, and the oxygen in the reaction system was removed by magnetic stirring for 30 minutes. Then it was heated in an oil bath at a constant temperature of 80°C for 12 hours. Wait for the flask to gradually cool to room temperature, quickly wash the obtained precipitate, and then redisperse it into 120 mL of distilled water, stir it magnetically, and heat it to 100°C. Then 6mL of 0.02M copper chloride and 14.1mL of 0.02M palladium chloride solution were injected, and after 15 minutes of reaction, 18mL of 0.02M copper chloride and 42.3mL of 0.02M palladium chloride solution were injected again. Keep the temperature at a constant temperature for 12 hours to obtain a precipitate. The above reaction processes are all carried out in a nitrogen atmosphere. The precipitate was washed with d...

Embodiment 3

[0042] At room temperature, 24.1 grams of titanium trichloride (20wt%, TiCl 3 ) And 60.25 g of saturated sodium chloride solution were placed in a 200 mL three-necked flask, and nitrogen was introduced, and the oxygen in the reaction system was removed by magnetic stirring for 30 minutes. Then it was heated in an oil bath at a constant temperature of 90°C for 12 hours. Wait for the flask to gradually cool to room temperature, quickly wash the obtained precipitate, and then redisperse it in 120 mL of distilled water, stir it magnetically, and heat to 60°C. Then inject 6.3 mL of 0.01M chloroauric acid solution, and inject 6.3 mL of the same concentration of chloroauric acid solution again after 15 minutes of reaction. Keep the temperature at a constant temperature for 12 hours to obtain a precipitate. The above reaction processes are all carried out in a nitrogen atmosphere. The precipitate was washed with deionized water several times, and dried in an oven at 40° C. for 12 hour...

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Abstract

The invention discloses a metal-loaded titanium-based catalyst and a preparation method thereof. The chemical general formula of the metal-loaded titanium-based catalyst is M / TiO2, (M=Pt, Au, Ag, Cu, Pd, Ru and Rh), a titanium dioxide carrier is of rod-like morphology and is assembled by rutile-phase titanium dioxide nano-particles in the grain size of 4-8nm, a loaded metal, such as platinum, gold, silver, copper, palladium, ruthenium and rhodium, is of elemental state, and the particle size is 2-10nm. The metal-loaded catalyst can be used as an effective carbon monoxide catalytic material for being applied to control of an atmospheric environment.

Description

Technical field [0001] The invention relates to a metal-supported titanium-based catalyst in the field of atmospheric environment treatment and a preparation method thereof. Background technique [0002] In the context of the rapid development of modern industry, air pollution has directly threatened human survival and health. Among them, as a common air pollutant, carbon monoxide has the characteristics of low concentration and high toxicity, and its elimination and transformation have attracted great attention from all over the world. In recent years, with the development of catalytic technology and gradually forming an independent research field, this technology has played an important role in environmental purification and the synthesis of new substances. Among them, the research and development and utilization of high-efficiency catalysts have always been the key research objects in the field of environmental protection. Among the many carbon monoxide catalysts, titanium-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/44B01J23/52B01J23/42B01J23/46B01D53/62B01D53/86
CPCY02A50/20
Inventor 李广社张俊李莉萍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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