CN101856652A - Spraying method of proton exchange membrane catalyst for fuel battery - Google Patents
Spraying method of proton exchange membrane catalyst for fuel battery Download PDFInfo
- Publication number
- CN101856652A CN101856652A CN200910049120A CN200910049120A CN101856652A CN 101856652 A CN101856652 A CN 101856652A CN 200910049120 A CN200910049120 A CN 200910049120A CN 200910049120 A CN200910049120 A CN 200910049120A CN 101856652 A CN101856652 A CN 101856652A
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- China
- Prior art keywords
- catalyst
- exchange membrane
- proton exchange
- liquid
- fuel battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a spraying method of a proton exchange membrane catalyst for a fuel battery. The catalyst comprises Pt/C (Pt-C), XC-72R (carbon powder), PTFE (tetrafluoride) and Nafion (resin) which are mixed according to different mass ratios. The method comprises the following steps: adding isopropanol in the catalyst based on a mass ratio of 1:1 of the catalyst to the isopropanol; mixing to obtain a liquid; carrying out ultrasonic preoscillation on the liquid; after fully mixing, placing the liquid into a graduated cup which is displaced in an ultrasonic container filling with medium water for carrying out ultrasonic oscillation; and then spraying the liquid in the graduated cup on the proton exchange membrane with an ultra-fine precision spraying device. By using the method, the catalyst sprayed on the proton exchange membrane is fully mixed, and the coating is even, thereby ensuring stable electrochemical performance and good electrochemical effect of the fuel battery.
Description
Technical field
The present invention relates to a kind of spraying method of proton exchange membrane catalyst for fuel battery.
Background technology
Usually the catalyst of fuel battery proton exchange film is mixed by different mass ratioes by Pt/C (platinum carbon), XC-72R (carbon dust), PTFE (tetrafluoro), Nafion (resin), adds alcohol then and is mixed into slurry.Catalyst generally adopts the method for serigraphy to be coated on the PEM, the catalyst pulp that is about to mix is applied on the cylinder, PEM is provided with 200～250 purpose woven wires, and passing through roll extrusion so just can be with the catalyst roll extrusion on PEM.This method is because the aperture of woven wire is bigger, catalyst also can be coated on the PEM by woven wire without fully pulverizing to mix, and catalyst is inhomogeneous with combining of PEM, causes often less stable of the chemical property of fuel cell and effect.
Summary of the invention
Technical problem to be solved by this invention provides a kind of spraying method of proton exchange membrane catalyst for fuel battery, utilize this method to make to be coated on that catalyst on the PEM fully mixes, coating is even, guaranteed fuel cell stable electrochemical property and good electrochemistry effect.
For solving the problems of the technologies described above, the spraying method of proton exchange membrane catalyst for fuel battery of the present invention, catalyst comprises that this method comprises the steps: by Pt/C (platinum carbon), XC-72R (carbon dust), PTFE (tetrafluoro), the Nafion (resin) of different quality than mixing
Step 1, in described catalyst by with catalyst quality than 1: 1 adding isopropyl alcohol, described catalyst and isopropyl alcohol are mixed into and carry out ultrasonic wave behind the liquid and shake in advance;
Step 2, will move to through the liquid that ultrasonic wave shakes in advance in the measuring cup, measuring cup places to be full of in the ultrasonic wave container that medium is a pure water and carries out ultrasonic vibration, and the ultrasonic frequency scope is 50khz-80khz;
Step 3, adopt superfine spraying equipment with liquid spray in the measuring cup on the PEM of fuel cell.
For reaching with catalyst mixed effect is preferably arranged, the purity of above-mentioned isopropyl alcohol is greater than 95%; Above-mentioned catalyst and isopropyl alcohol carried out time that ultrasonic wave shakes in advance more than or equal to 10 hours.
Because the spraying method of proton exchange membrane catalyst for fuel battery of the present invention has adopted technique scheme, promptly in catalyst, carry out ultrasonic wave behind the liquid and shake in advance by being mixed into than 1: 1 adding isopropyl alcohol with catalyst quality, treat that fully mixing the back moves into measuring cup, measuring cup places to be full of in the ultrasonic wave container that medium is a pure water and carries out ultrasonic vibration, adopt then superfine spraying equipment with liquid spray in the measuring cup on PEM; Utilize this method to make to be coated on that catalyst on the PEM fully mixes, coating is even, guaranteed fuel cell stable electrochemical property and good electrochemistry effect.
The specific embodiment
The spraying method of proton exchange membrane catalyst for fuel battery of the present invention, catalyst comprise that this method comprises the steps: by Pt/C (platinum carbon), XC-72R (carbon dust), PTFE (tetrafluoro), the Nafion (resin) of different quality than mixing
Step 1, in described catalyst by with catalyst quality than 1: 1 adding isopropyl alcohol, described catalyst and isopropyl alcohol are mixed into and carry out ultrasonic wave behind the liquid and shake in advance;
Step 2, will move to through the liquid that ultrasonic wave shakes in advance in the measuring cup, measuring cup places to be full of in the ultrasonic wave container that medium is a pure water and carries out ultrasonic vibration, and the ultrasonic frequency scope is 50khz-80khz;
Step 3, adopt superfine spraying equipment with liquid spray in the measuring cup on the PEM of fuel cell.
For reaching with catalyst mixed effect is preferably arranged, the purity of above-mentioned isopropyl alcohol is greater than 95%; Above-mentioned catalyst and isopropyl alcohol carried out time that ultrasonic wave shakes in advance more than or equal to 10 hours.
The spraying method of proton exchange membrane catalyst for fuel battery of the present invention carries out ultrasonic wave behind the liquid and shakes in advance by being mixed into than 1: 1 adding isopropyl alcohol with catalyst quality in catalyst, treat that fully mixing the back moves into measuring cup, measuring cup places to be full of in the ultrasonic wave container that medium is a pure water and carries out ultrasonic vibration, adopt then superfine spraying equipment with liquid spray in the measuring cup on PEM, the sprayer that superfine spraying equipment can adopt U.S. FlexiCoat company to produce; And the various compositions in the above-mentioned catalyst fully smash mixing after ultrasonic vibration, and the chemical property of isopropyl alcohol can fully be dissolved with above-mentioned composition.Catalyst has obtained sufficient refinement and has evenly merged like this, then by superfine spraying the coating on the PEM is significantly improved; Utilize this method to make to be coated on that catalyst on the PEM fully mixes, coating is even, guaranteed fuel cell stable electrochemical property and good electrochemistry effect.
Claims (3)
1. the spraying method of a proton exchange membrane catalyst for fuel battery, catalyst comprise by different quality and it is characterized in that than Pt/C (platinum carbon), the XC-72R (carbon dust), PTFE (tetrafluoro), the Nafion (resin) that mix this method comprises the steps:
Step 1, in described catalyst by with catalyst quality than 1: 1 adding isopropyl alcohol, described catalyst and isopropyl alcohol are mixed into and carry out ultrasonic wave behind the liquid and shake in advance;
Step 2, will move to through the liquid that ultrasonic wave shakes in advance in the measuring cup, measuring cup places to be full of in the ultrasonic wave container that medium is a pure water and carries out ultrasonic vibration, and the ultrasonic frequency scope is made as 50khz-80khz;
Step 3, adopt superfine spraying equipment with liquid spray in the measuring cup on the PEM of fuel cell.
2. the spraying method of proton exchange membrane catalyst for fuel battery according to claim 1, it is characterized in that: the purity of described isopropyl alcohol is greater than 95%.
3. the spraying method of proton exchange membrane catalyst for fuel battery according to claim 1 is characterized in that: described catalyst and isopropyl alcohol carried out time that ultrasonic wave shakes in advance more than or equal to 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910049120A CN101856652A (en) | 2009-04-10 | 2009-04-10 | Spraying method of proton exchange membrane catalyst for fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910049120A CN101856652A (en) | 2009-04-10 | 2009-04-10 | Spraying method of proton exchange membrane catalyst for fuel battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101856652A true CN101856652A (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910049120A Pending CN101856652A (en) | 2009-04-10 | 2009-04-10 | Spraying method of proton exchange membrane catalyst for fuel battery |
Country Status (1)
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| CN (1) | CN101856652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447187A (en) * | 2012-05-30 | 2013-12-18 | 上海蓝蔚科技发展有限公司 | Calculation method for controlling speed of spraying machine according to catalyst loading |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005029620A1 (en) * | 2003-09-20 | 2005-03-31 | Umicore Ag & Co Kg | Catalyst-coated membrane with integrated sealing material and membrane-electrode assembly produced therefrom |
| CN1713424A (en) * | 2004-06-23 | 2005-12-28 | 比亚迪股份有限公司 | Electrode production of fuel battery membrane with proton exchange membrane |
| CN1838456A (en) * | 2006-04-28 | 2006-09-27 | 华南理工大学 | Direct spraying method for preparing fuel cell membrane electrode |
-
2009
- 2009-04-10 CN CN200910049120A patent/CN101856652A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005029620A1 (en) * | 2003-09-20 | 2005-03-31 | Umicore Ag & Co Kg | Catalyst-coated membrane with integrated sealing material and membrane-electrode assembly produced therefrom |
| CN1713424A (en) * | 2004-06-23 | 2005-12-28 | 比亚迪股份有限公司 | Electrode production of fuel battery membrane with proton exchange membrane |
| CN1838456A (en) * | 2006-04-28 | 2006-09-27 | 华南理工大学 | Direct spraying method for preparing fuel cell membrane electrode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447187A (en) * | 2012-05-30 | 2013-12-18 | 上海蓝蔚科技发展有限公司 | Calculation method for controlling speed of spraying machine according to catalyst loading |
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Application publication date: 20101013 |
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| WD01 | Invention patent application deemed withdrawn after publication |