Check patentability & draft patents in minutes with Patsnap Eureka AI!

Modifying method of the carbon carrier particle for catalyzer

A carbon carrier and catalyst technology, which is applied in the field of modification of carbon carrier particles for catalysts, can solve the problem that catalysts cannot take into account catalyst stability and catalytic activity at the same time, and achieves the effects of improving stability and catalytic activity.

Active Publication Date: 2008-03-05
BYD CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the shortcomings of the existing carbon-supported noble metal-containing catalysts that cannot simultaneously take into account the catalyst stability and catalytic activity, and provide a modified carbon carrier particle for catalysts that can simultaneously take into account the catalyst stability and catalytic activity. method

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
  • Modifying method of the carbon carrier particle for catalyzer
  • Modifying method of the carbon carrier particle for catalyzer
  • Modifying method of the carbon carrier particle for catalyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This example is used to illustrate the modification method of the catalyst carbon carrier particles provided by the present invention and the catalyst using the carbon carrier particles.

[0041] Add 10.0 grams of Vulcan XC72R into the anode chamber 21 of the electrolyzer shown in Figure 2, wherein the anode chamber 21 and cathode chamber 23 with a volume of 2.5 liters are respectively equipped with 1 liter of 0.1 mol / liter dilute H 2 SO 4 solution, the anode plate 211 and the cathode plate 231 are cylindrical graphite electrodes with a surface area of ​​0.1 square meters, and the diaphragm 22 is a perfluorosulfonic acid membrane with a pore diameter of 5 microns. Stir with a stirrer 24 at a speed of 200 rpm for 1 hour at room temperature, so that Vulcan XC72R is evenly dispersed in the dilute H in the anode chamber 2 SO 4 A suspension is formed in the solution, and then a direct current with a density of 0.05 ampere / square centimeter is applied through the anode plat...

Embodiment 2

[0044] This example is used to illustrate the modification method of the catalyst carbon carrier particles provided by the present invention and the catalyst using the carbon carrier particles.

[0045] 8.0 grams of carbon nanotubes (average particle diameter is 0.002 microns) are added in the anode chamber 21 of the electrolyzer shown in Fig. 2, wherein the anode chamber 21 and the cathode chamber 23 that volume is 2.5 liters are respectively equipped with 1 liter of 0.05 mole / L of HNO 3 solution, the anode plate 211 and the cathode plate 231 are cylindrical graphite electrodes with a surface area of ​​0.075 square meters, and the diaphragm 22 is a polyethylene microporous membrane. Stir at 30°C with stirrer 24 at a speed of 300 rpm for 2 hours, so that the carbon nanotubes are evenly dispersed in the dilute HNO in the anode chamber 3 solution, then apply a current with a density of 0.20 ampere / square centimeter through the anode plate 211 and the cathode plate 231 while st...

Embodiment 3

[0051] This example is used to illustrate the modification method of the catalyst carbon carrier particles provided by the present invention and the catalyst using the carbon carrier particles.

[0052] 1.0 gram of Vulcan XC72R is added in the anode chamber 21 of the electrolytic cell shown in Fig. 2, wherein the anode chamber 21 and the cathode chamber 23 with a volume of 2.5 liters are respectively equipped with 1 liter of 2.5 mol / liter H 3 PO 4 solution, the anode plate 211 and the cathode plate 231 are rod-shaped graphite electrodes with a surface area of ​​0.05 square meters, and the diaphragm 22 is a perfluorosulfonic acid membrane with a pore diameter of 5 microns. At 40°C, the agitator 24 was stirred at a speed of 200 rpm for 30 minutes, so that the Vulcan XC72R was uniformly dispersed in the dilute H in the anode chamber 21 3 PO 4 solution, then apply a current with a density of 5.0 amperes / square centimeter through the anode plate 211 and the cathode plate 231 whil...

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
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The process of modifying granular carbon carrier for catalyst includes setting the granular carbon carrier inside anode chamber of electrolytic bath for contacting with the anode plate and applying DC voltage to the electrolytic bath. The electrolytic bath includes one anode chamber, one cathode chamber and one diaphragm in between; the anode chamber includes one anode plate and anode chamber electrolyte to form suspension together with the granular carbon carrier; and the cathode chamber includes one cathode plate and cathode chamber electrolyte. The anode plate and the cathode plate are connected separately to the negative pole and the positive pole of the DC power supply. The granular carbon carrier for catalyst through the said modifying process can reduce the diameter of the supported noble metal grains from 4.8 nm to 2.5 nm and raise the catalyst activity greatly.

Description

technical field [0001] The present invention relates to a method for modifying carbon carrier particles for catalysts. Background technique [0002] A fuel cell is an energy conversion device that converts chemical energy stored in fuels (such as hydrogen, lower alcohols, etc.) and oxidants (oxygen) into electrical energy according to electrochemical principles. [0003] Fuel cells have the advantages of high energy conversion rate and environmental friendliness, while Proton Exchange Membrane Fuel Cell (PEMFC) has the advantages of low temperature operation and high specific power, so PEMFC is not only suitable for building decentralized power plants, but also It is suitable for mobile power sources, such as electric vehicles and submarines, and is a new type of power source for military and civilian use. [0004] The membrane electrode (Membrane Electrode Assembly, MEA for short) is the core component of the fuel cell, and it is the part where the fuel and the oxidant und...

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
IPC IPC(8): B01J37/00B01J37/34B01J21/18
Inventor 杨新胜董俊卿
Owner BYD CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com