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

A petal-shaped Cu-doped Ptru alloy catalyst and preparation method thereof

An alloy catalyst and a petal-shaped technology are applied in the field of petal-shaped Cu-doped PtRu alloy catalyst and its preparation, which can solve the problems of lack of research depth and application, high catalyst application cost, catalyst corrosion, etc., and achieve easy methanol oxidation reaction, Excellent methanol oxidation performance, easy catalytic effect

Inactive Publication Date: 2020-04-21
WUHAN UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] PtRu alloy catalyst is by far the most intensively studied and widely used anode catalyst for direct methanol fuel cells [2] , due to the arrangement of the PtRu alloy catalyst's own atoms and the characteristics of the corresponding electrons, the catalyst has excellent resistance to CO poisoning, but Ru is a rare metal element, which is the least abundant platinum group element in the earth's crust, and is also a platinum group element. One of the last elements discovered in the chemical industry, there are many limitations in industrial production and practical application, the application cost of the catalyst is high, and there will be serious corrosion of the catalyst during work
Nowadays, many studies focus on the PtRu alloy binary system [3] Or other metal doped PtRu ternary alloy system [4] development, but the depth and application of research are still lacking

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 petal-shaped Cu-doped Ptru alloy catalyst and preparation method thereof
  • A petal-shaped Cu-doped Ptru alloy catalyst and preparation method thereof
  • A petal-shaped Cu-doped Ptru alloy catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1) Put 7.2mg of copper acetate, 5mL of oleylamine, 73mg of CTAB and 60mg of glucose into a 100mL eggplant-shaped reaction bottle with a branched mouth and ultrasonically mix them evenly, assemble the instrument, and vacuumize for 10 minutes;

[0043] 2) React the mixed liquid obtained in step 1) at a high temperature of 270° C. for 0.5 h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0044] 3) Put 20.4mg of platinum acetylacetonate, 4mg of ruthenium acetylacetonate and 10mL of oleylamine in a beaker and mix them uniformly by ultrasonic, add to the product obtained in step 2), and stir evenly with magnetic force;

[0045] 4) React the mixed liquid obtained in step 3) at a high temperature of 320° C. for 1 h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0046] 5) The obtained product was washed with a mixture of toluene and methanol at a ratio of 2:1 and ethanol for more than 3 times, and dried...

Embodiment 2

[0054] 1) Put 5mg of copper acetate, 10mL of oleylamine, 30mg of CTAB and 60mg of glucose in a 100mL eggplant-shaped reaction bottle with a branched mouth and ultrasonically mix them evenly, assemble the instrument, and vacuumize for 10 minutes;

[0055] 2) React the mixed liquid obtained in step 1) at a high temperature of 270° C. for 0.5 h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0056] 3) Put 10.2 mg of platinum acetylacetonate, 7 mg of ruthenium acetylacetonate and 10 mL of oleylamine in a beaker and ultrasonically mix them uniformly, add to the product obtained in step 2), and stir evenly with magnetic force;

[0057] 4) React the mixed liquid obtained in step 3) at a high temperature of 300° C. for 0.5 h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0058] 5) The obtained product was washed with a mixture of toluene and methanol at a ratio of 1:1 and ethanol for more than 3 times, and dr...

Embodiment 3

[0061] 1) Put 7.2mg of copper acetate, 5mL of oleylamine, 60mg of CTAB and 60mg of glucose in a 100mL eggplant-shaped reaction bottle with a branched mouth and ultrasonically mix them evenly, assemble the instrument, and vacuumize for 15 minutes;

[0062] 2) React the mixed liquid obtained in step 1) at a high temperature of 270° C. for 0.5 h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0063] 3) Put 20.4mg of platinum acetylacetonate, 4mg of ruthenium acetylacetonate and 10mL of oleylamine in a beaker and mix them uniformly by ultrasonic, add to the product obtained in step 2), and stir evenly with magnetic force;

[0064] 4) React the mixed solution obtained in step 3) at a high temperature of 270°C for 0.5h under CO atmosphere and magnetic stirring conditions, and cool to room temperature;

[0065] 5) The obtained product was washed with a mixture of toluene and methanol at a ratio of 2:1 and ethanol for more than 3 times, and dried ...

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
widthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a petal-shaped Cu-doped PtRu alloy catalyst and a preparation method thereof. The petal-shaped Cu-doped PtRu alloy catalyst has a petal-shaped morphology. The three elements Pt, Ru and Cu all exist in the form of alloys, and Pt and Ru atoms are distributed at the active sites. The mass activity of the prepared petal-shaped PtRu / Cu catalyst in the methanol oxidation reaction is at least 3.1 times that of commercial Pt / C. The preparation method is simple and the operation is easy. The excellent methanol oxidation performance makes it widely used in many fields such as methanol fuel cell catalysts.

Description

technical field [0001] The invention relates to a petal-shaped Cu-doped PtRu alloy catalyst and a preparation method thereof, belonging to the application field of fuel cells. Background technique [0002] At present, the commercial catalyst is a noble metal Pt-based catalyst, which has a high cost, and as it is continuously mined and consumed, the cost is likely to continue to rise. Pt, as the catalyst layer of the key component of the fuel cell, will gradually reduce its activity and performance during the working process. Since Pt is a very expensive metal, the loading of Pt must be minimized, but not at the cost of degrading the performance of the fuel cell. Therefore, one of the ideas is to make a Pt alloy catalyst. In recent years, research on Pt alloy catalysts has emerged in an endless stream, and the types of alloys to be selected are also varied, such as: Pd, Cu, Ni and Ru, etc. Pt alloy catalysts are important in reducing the amount of Pt. At the same time, its ...

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): H01M4/92B01J23/89B01J35/02B01J35/00
CPCH01M4/921B01J23/8926B01J35/50B01J35/40Y02E60/50
Inventor 木士春杨芳何大平薛盛峰田美月
Owner WUHAN UNIV OF TECH
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