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

Electrocatalyst for proton exchange film fuel cell

A technology of proton exchange membrane and electrocatalyst, which is applied in solid electrolyte fuel cells, fuel cells, battery electrodes, etc., to achieve the effects of strong electric field stability, improved sintering resistance and stability, and strong long-term life-span operation stability

Active Publication Date: 2010-05-05
中科军联(张家港)新能源科技有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, this key issue has not been resolved

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
  • Electrocatalyst for proton exchange film fuel cell
  • Electrocatalyst for proton exchange film fuel cell
  • Electrocatalyst for proton exchange film fuel cell

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0048] Platinum Titanium Carbon (Pt / TiO x / C) (Pt mass percentage content 40wt.%, atomic ratio Pt:Ti=5:1) Preparation of catalyst.

[0049] Carbon black XC-72R was pre-treated with 2N hydrochloric acid and 5N nitric acid solution, dried at 140℃, weighed 2 grams, dispersed with 100ml isopropanol ultrasonically for 30 minutes to obtain a carbon slurry, added butyl titanate ethylene glycol while stirring Solution (contains 482mg butyl titanate), then add dropwise a mixture of 20ml isopropanol + 15ml water + 1ml nitric acid, stir 4 days after the titanium is fully hydrolyzed, washed with plenty of water, and dried to obtain a composite carrier for use. Prepared composite carrier 1.2 Use 200 ml of ethylene glycol to ultrasonically vibrate for 30 minutes to obtain a carbon slurry. Weigh 2.16 g of chloroplatinic acid (containing 0.799 g of platinum) and dissolve it into 50 ml of ethylene glycol, add it dropwise to the carbon slurry, and stir vigorously for 20 minutes. Adjust the pH to 1...

preparation Embodiment 2

[0051] Platinum Titanium Carbon (Pt / TiO x / C) (Pt mass percentage content 40wt.%, atomic ratio Pt:Ti=1:1) Preparation of catalyst.

[0052] Other conditions are the same as in Example 1, changing the atomic ratio of Pt and Ti in the catalyst component to 1:1. The platinum metal loading is maintained at 40wt%. The results of transmission electron microscopy and X-ray diffraction experiments show that the particle size and distribution of the catalyst metal before and after the treatment are similar to those in Example 1.

preparation Embodiment 3

[0054] Platinum Titanium Carbon (Pt / TiO x / C) (Pt mass percentage content 40wt.%, atomic ratio Pt:Ti=10:1) Preparation of catalyst.

[0055] Other conditions are the same as in Example 1, changing the atomic ratio of Pt and Ti in the catalyst component to 10:1. The platinum metal loading is maintained at 40wt%. The results of transmission electron microscopy and X-ray diffraction experiments show that the particle size and distribution of the catalyst metal before and after the treatment are similar to those in Example 1.

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

An electric catalyst used for proton exchange membrane fuel cells, active component is Pt or PtRu, auxiliary component is titanium oxide; the atom ratio of platinum and titanium is 0.01-99, the atom ratio of platinum and ruthenium is 0.01-99, the particle size of the active component is 1-20nm. The active component can be impregnated in the titanium oxide modified porous conductive material, gained support-type electric catalyst, which contained activity group sharing percentage for the quality of 1-99%, the atom ratio of platinum and titanium is 0.01-99. Active components can be added as a percentage of 0-99% of the auxiliary components, become a multi-component catalysts; adding auxiliary components was transition metal or a transition metal oxides or several. Preparation methods can beused colloidal law or impregnation - Reduction Act. The invention of the electric catalyst can be used in proton exchange membrane fuel cells.

Description

Technical field [0001] The invention relates to an electrocatalyst with high stability and high activity applied to a proton exchange membrane fuel cell. [0002] The invention also relates to a preparation method of the above-mentioned electrocatalyst. [0003] The present invention also relates to the application of the above-mentioned electrocatalyst. Background technique [0004] Fuel cells have the advantages of high energy conversion efficiency, no pollution, no noise, etc., and have attracted great attention in recent years. In addition to the general characteristics of other fuel cells, the proton exchange membrane fuel cell also has the advantages of high specific power density and specific energy, rapid start-up at room temperature, no electrolyte loss, and long service life. It is widely regarded as the best electric vehicle in the future. Good candidate power supply, and has broad application prospects in other mobile power sources, decentralized power stations, etc. T...

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): B01J23/42B01J23/46B01J35/10B01J32/00B01J37/16H01M4/90H01M4/92H01M8/00H01M8/10
CPCY02E60/50
Inventor 孙公权田娟姜鲁华闫世友辛勤
Owner 中科军联(张家港)新能源科技有限公司
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