Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A platinum/titanium dioxide catalyst for dehydrogenation of dodecahydroethylcarbazole and preparation method thereof

A technology of dodecahydroethylcarbazole and titanium dioxide is applied in the field of organic liquid hydride hydrogen storage to achieve the effects of low preparation cost, mild preparation conditions and mild reducibility

Active Publication Date: 2020-06-26
XI AN JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Titanium dioxide is an N-type semiconductor. Due to its special photoelectric properties, it has been studied in the field of photocatalysis for a long time, but it has not been applied in the dehydrogenation reaction of dodecahydroethylcarbazole.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A platinum/titanium dioxide catalyst for dehydrogenation of dodecahydroethylcarbazole and preparation method thereof
  • A platinum/titanium dioxide catalyst for dehydrogenation of dodecahydroethylcarbazole and preparation method thereof
  • A platinum/titanium dioxide catalyst for dehydrogenation of dodecahydroethylcarbazole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this example, a platinum / titanium dioxide catalyst used for dehydrogenation of dodecahydroethylcarbazole, 1.5 g of titanium dioxide and 30 ml of ethylene glycol were added to a container, and the mixture was placed on a magnetic stirrer and stirred for 20 minutes. Then the temperature was raised to 120°C and kept for 20 min, then the heating was stopped and cooled to room temperature. Then the above-mentioned cooled mixture was filtered, rinsed with deionized water and absolute ethanol so that no ethylene glycol remained, and dried in an oven at 60° C. for 6 h. Grind after complete drying, weigh 1.0g for later use.

[0034] Pour 20ml of ethylene glycol into the container, then add 0.0249g of potassium chloroplatinate, place it on a magnetic stirrer and stir for 3h, then add 1.0g of pretreated titanium dioxide that has been weighed to the above mixture of ethylene glycol and platinum , continue stirring for 0.5h, then weigh 0.249g of sodium citrate and add it to the ...

Embodiment 2

[0042] In this example, a platinum / titanium dioxide catalyst used for dehydrogenation of dodecahydroethylcarbazole, 1.0 g of titanium dioxide and 20 ml of ethylene glycol were added to a container, and the mixture was placed on a magnetic stirrer and stirred for 15 minutes. Then the temperature was raised to 120°C and kept for 10 min, then the heating was stopped and cooled to room temperature. Then the above mixture was filtered, rinsed with deionized water and absolute ethanol so that no ethylene glycol remained, and dried in an oven at 70° C. for 8 hours. Grind after complete drying, weigh 0.4g for later use.

[0043] Pour 8ml of ethylene glycol into the container, then add 0.0248g of potassium chloroplatinate, place it on a magnetic stirrer and stir for 3h, then add the weighed 0.4g of pretreated titanium dioxide to the above mixture of ethylene glycol and platinum , continue stirring for 0.5h, then weigh 0.248g of sodium citrate and add it to the above mixture, raise the...

Embodiment 3

[0047] In this example, a platinum / titanium dioxide catalyst used for dehydrogenation of dodecahydroethylcarbazole, 0.8 g of titanium dioxide and 16 ml of ethylene glycol were added to a container, and the mixture was placed on a magnetic stirrer and stirred for 30 minutes. Then the temperature was raised to 130°C and kept for 12 minutes, then the heating was stopped and cooled to room temperature. Then the above mixture was filtered, rinsed with deionized water and absolute ethanol so that no ethylene glycol remained, and dried in an oven at 110° C. for 6 h. Grind after complete drying, weigh 0.5g for later use.

[0048] Pour 10ml of ethylene glycol into the container, then add 0.0655g of potassium chloroplatinate, place it on a magnetic stirrer and stir for 3h, then add the weighed 0.5g of pretreated titanium dioxide to the mixture of ethylene glycol and platinum , continue stirring for 0.5h, then weigh 0.524g of sodium citrate and add it to the above mixture, raise the tem...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a platinum / titanium dioxide catalyst for dehydrogenation of dodecahydroethyl carbazole and a preparation method of the catalyst. The catalyst comprises the following componentsin percentage by mass: 0.5-5.0% of platinum, 56.9-59.7% of titanium and 38.1-39.8% of oxygen; the preparation method comprises the following two steps: pretreatment of the carrier titanium dioxide and synthesis of the platinum / titanium dioxide catalyst. According to the preparation method, in ethylene glycol, sodium citrate is used as a reducing agent to prepare the supported platinum / titanium dioxide catalyst, and the obtained catalyst powder is small in particle size and uniform in distribution; the problems of large metal particle size and non-uniform distribution can be effectively solvedwithout adding any surfactant and dispersing agent. The catalyst disclosed by the invention is capable of reducing the use amount of noble metal platinum with maintained reaction activity, the selectivity on dehydrogenation reaction end product ethyl carbazole is improved to 97% or above, and the total dehydrogenation amount is improved to 5.75 wt%.

Description

technical field [0001] The invention belongs to the technical field of organic liquid hydride hydrogen storage, and in particular relates to a platinum / titanium dioxide catalyst for dehydrogenation of dodecahydroethylcarbazole and a preparation method thereof. Background technique [0002] In recent years, the problems of energy crisis and environmental degradation have been plaguing countries all over the world. Experts and scholars are constantly trying to find a more efficient and environmentally friendly energy source to reduce or even replace the traditional fossil fuels in national production and life. As one of the energy sources most likely to be widely used, hydrogen energy has attracted attention in many fields due to its large reserves, high calorific value, and environmental friendliness. Especially in the field of fuel cells, researchers have been trying to apply hydrogen fuel cells to mobile transportation equipment to reduce the emission of toxic and harmful g...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/42C07D209/86
CPCB01J23/42B01J35/0066C07D209/86
Inventor 姜召龚翔方涛
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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