A kind of supported platinum-based catalyst and preparation method thereof
A catalyst and supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as lack of catalytic activity and limited catalytic efficiency of catalysts
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0029] The preparation of the above catalyst is based on SnO 2 -Al 2 o 3 Based on the weight of the carrier, the Sn component in the composite oxide has a mass percentage of 0.1wt%-2wt%, the Al component has a mass percentage of 52wt%-52.9wt%, and the rest is an oxygen component. Based on the total mass of the catalyst, the mass percentage of the platinum component is 0.05wt% to 2wt%; the composite oxide SnO 2 -Al 2 o 3 The mass percentage content is 23wt%~95.95wt%; the mass percentage content of inorganic oxide binder is 2wt%~50wt%; the mass percentage content of extrusion aid is 1wt%~15wt%; the mass percentage content of acid peptizer It is 1wt%-10wt%.
[0030] The preparation method of supported platinum-based catalyst of the present invention is:
[0031] Step a) Dissolving the template agent in an aqueous ethanol solution with a volume ratio of absolute ethanol and deionized water of 3:1 to 1:3 at room temperature, the mass ratio of the template agent to the aqueous...
Embodiment 1
[0037] Dissolve 6g of cetyltrimethylammonium bromide in a mixed solution of 225mL of absolute ethanol and 525mL of deionized water, add 23.84g of aluminum isopropoxide after dissolution, and continue to stir the mixed solution at 60°C for 3h. Then the above liquid is filtered, washed, dried and calcined to obtain mesoporous alumina.
[0038] 14.3mmol SnCl 2 2H 2 O and 0.1mmol urea were dissolved in 600mL of distilled water, stirred evenly, and transferred to a 1000mL polytetrafluoroethylene-lined autoclave; After hydrothermal treatment at ℃ for 10 h, filter, wash with distilled water and absolute ethanol for 5 times, and finally, dry at 80 °C for 10 h to obtain Sn-Al LDHs / Al with specific morphology 2 o 3 composite material.
[0039] Take 3g of the above Sn-Al LDHs / Al 2 o 3 The composite material was dissolved in a solution composed of 20mL ethanol and 50mL deionized water, stirred at room temperature for 1h, then added 1.08mL chloroplatinic acid (platinum concentration:...
Embodiment 2
[0044] Dissolve 3g of cetyltrimethylammonium bromide and 3g of polyvinylpyrrolidone in a mixed solution of 225mL of absolute ethanol and 525mL of deionized water, add 23.84g of aluminum sec-butoxide after dissolution, and continue stirring the mixed solution at 60°C 3h. Then the above liquid is filtered, washed, dried and calcined to obtain mesoporous alumina.
[0045] 14.3mmol SnCl 2 2H 2 O and 1.12mL ammonia water (mass fraction is 28wt%) were dissolved in 600mL distilled water, after stirring evenly, transferred to a 1000mL polytetrafluoroethylene-lined autoclave; then, take 3g of the above prepared mesoporous Al 2 o 3 Immersed in the above solution, after hydrothermal treatment at 120 °C for 10 h, the liquid was filtered, washed with distilled water and absolute ethanol for 5 times, and finally dried at 80 °C for 10 h to obtain Sn-Al LDHs / Al with specific morphology 2 o 3 composite material.
[0046] Take 3g of the above Sn-Al LDHs / Al 2 o 3 The composite material w...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com