CN108448142A - A kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell - Google Patents
A kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell Download PDFInfo
- Publication number
- CN108448142A CN108448142A CN201810470555.0A CN201810470555A CN108448142A CN 108448142 A CN108448142 A CN 108448142A CN 201810470555 A CN201810470555 A CN 201810470555A CN 108448142 A CN108448142 A CN 108448142A
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- CN
- China
- Prior art keywords
- ion exchange
- sulfonic acid
- exchange membrane
- perfluorinated sulfonic
- acid ion
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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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
- H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1041—Polymer electrolyte composites, mixtures or blends
- H01M8/1046—Mixtures of at least one polymer and at least one additive
- H01M8/1048—Ion-conducting additives, e.g. ion-conducting particles, heteropolyacids, metal phosphate or polybenzimidazole with phosphoric acid
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, the perfluorinated sulfonic acid ion exchange membrane is applied as diaphragm in direct methanol fuel cell；It is compounded with CuPc tetrasulfonic acid tetrasodium salt in the perfluorinated sulfonic acid ion exchange membrane, the mass ratio of the perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：1.5~6.The Ion transfer activation energy of film can be reduced in this way, and improves ion exchange capacity, conductivity and thermal stability.
Description
Technical field
The invention belongs to fuel cell part fields, are related to a kind of proton exchange membrane, and in particular to a kind of perfluorinated sulfonic acid
The application of amberplex in a fuel cell.
Background technology
PEMFC mostly uses greatly the perfluoro sulfonic acid membranes such as Nafion membrane at present, but there are still following disadvantages for Nafion membrane：（1）It is right
Temperature and water content require height, and the optimum working temperature of Nafion membrane is 70 ~ 90 DEG C, can make its water content drastically more than this temperature
It reduces, electric conductivity declines rapidly, hinders and improves electrode reaction rate by properly increasing operating temperature and overcome catalyst
The problem of poisoning；（2）Certain hydrocarbons, such as methanol, permeability is higher, is not suitable for use in direct methanol fuel cell
（DMFC）Proton exchange membrane.
Invention content
A kind of perfluorinated sulfonic acid ion exchange membrane is provided the invention aims to overcome the deficiencies in the prior art in fuel
Application in battery.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of perfluorinated sulfonic acid ion exchange membrane is electric in fuel
Application in pond, the perfluorinated sulfonic acid ion exchange membrane are applied as diaphragm in direct methanol fuel cell；The perfluor sulphur
CuPc tetrasulfonic acid tetrasodium salt, the perfluorinated sulfonic acid ion exchange membrane and four sulphur of the CuPc are compounded in acid ion exchange membrane
The mass ratio of sour tetrasodium salt is 100：1.5~6.
Optimally, the mass ratio of the perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：3~
6。
Further, the mass ratio of the perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：
3。
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：Perfluorinated sulfonic acid of the present invention
The application of amberplex in a fuel cell is handed over by using the perfluorosulfonic acid ion for being compounded with CuPc tetrasulfonic acid tetrasodium salt
Film is changed, the Ion transfer activation energy of film can be reduced in this way, and improves ion exchange capacity, conductivity and thermal stability.
Description of the drawings
Attached drawing 1 is the comparison diagram of the water absorption rate and conductivity of the modification Nafion membrane of different quality content；
Attached drawing 2 is the IEC of modification Nafion membrane of different quality content, the datagram of conductivity and Ion transfer activation energy；
Attached drawing 3 is the TGA figures of the modification Nafion membrane of different quality content；
Attached drawing 4 is the oxidation stability figure of the modification Nafion membrane of different quality content.
Specific implementation mode
It is described in detail below in conjunction with to the preferred embodiment of the invention：
Embodiment 1
The present embodiment provides a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, the perfluorinated sulfonic acid ion exchange membranes
It is applied in direct methanol fuel cell as diaphragm；Four sodium of CuPc tetrasulfonic acid is compounded in perfluorinated sulfonic acid ion exchange membrane
The mass ratio of salt, perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：1.5~6；Its specific prepares walks
It is rapid as follows：
（a）By 7.5mg CuPc tetrasulfonic acid tetrasodium salts（It is commercially available）It is molten to be dissolved in formation CuPc tetrasulfonic acid tetrasodium salt in 1ml ethyl alcohol
Liquid；Then with 10ml Nafion solutions（5wt %, cruel that reagent are commercially available）It carries out being mixed to form mixed solution；CuPc at this time
The quality of tetrasulfonic acid tetrasodium salt is about 1.5% of perfluorosulfonic acid type polymer quality in Nafion solution；
（b）Above-mentioned mixed solution is poured in polytetrafluoroethylene (PTFE) template, 3h film forming is heated at 100 DEG C；
（c）By step（b）In film impregnated 3 hours in the sulfuric acid solution of 10 wt%, impregnated in distilled water again after taking-up 3 small
When（The film of acquisition is denoted as Nafion/CuTSPc-1.5%）.
Embodiment 2
The present embodiment provides a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, it with it is basic in embodiment 1
Unanimously, unlike：Step（a）It is middle by 15mg CuPc tetrasulfonic acid tetrasodium salts（It is commercially available）It is dissolved in 1ml ethyl alcohol, final CuPc
The quality of tetrasulfonic acid tetrasodium salt is about 3% of perfluorosulfonic acid type polymer quality in Nafion solution（The film of acquisition is denoted as
Nafion/CuTSPc-3%）.
Embodiment 3
The present embodiment provides a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, it with it is basic in embodiment 1
Unanimously, unlike：Step（a）It is middle by 22.5mg CuPc tetrasulfonic acid tetrasodium salts（It is commercially available）It is dissolved in 1ml ethyl alcohol, final phthalocyanine
The quality of copper tetrasulfonic acid tetrasodium salt is about 4.5% of perfluorosulfonic acid type polymer quality in Nafion solution（The film of acquisition is denoted as
Nafion/CuTSPc-4.5%）.
Embodiment 4
The present embodiment provides a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, it with it is basic in embodiment 1
Unanimously, unlike：Step（a）It is middle by 30mg CuPc tetrasulfonic acid tetrasodium salts（It is commercially available）It is dissolved in 1ml ethyl alcohol, final CuPc
The quality of tetrasulfonic acid tetrasodium salt is about 6% of perfluorosulfonic acid type polymer quality in Nafion solution（The film of acquisition is denoted as
Nafion/CuTSPc-6%）.
Comparative example 1
The present embodiment provides a kind of application of Nafion membrane, it with it is almost the same in embodiment 1, unlike：Directly will
10ml Nafion solutions（5wt %, cruel that reagent are commercially available）It is poured in polytetrafluoroethylene (PTFE) template, 3h film forming is heated at 100 DEG C.
It is as shown in Figure 1 to carry out water absorption rate, conductivity for Nafion membrane obtained in embodiment 1-4, comparative example 1；At 30 DEG C,
Its conductivity is respectively 0.069 s cm-1、0.072 s cm-1、0.074 s cm-1、0.084 s cm-1With 0.059 s cm-1,
Its water absorption rate is also to increase with the increase of CuPc tetrasulfonic acid tetrasodium salt, but be not added with CuPc tetrasulfonic acid tetrasodium salt
Nafion membrane water absorption rate highest.The ion exchange capacity of Nafion membrane obtained in embodiment 1-4, comparative example 1（IEC）And ion
It is as shown in Figure 2 to migrate the performances such as activation energy, it is seen that the Ion transfer activation energy of film is minimum in embodiment 2.From figure 3, it can be seen that
When temperature is less than 300 DEG C, all films show excellent thermal stability；Pure Nafion membrane is multiple with CuPc tetrasulfonic acid tetrasodium salt
It closes film and shows two parts degradation trend：First step degradation occurs at 300 ~ 350 DEG C, mainly due to the degradation of pendant sulfonic acid groups；
Second step degradation occurs at 400 ~ 450 DEG C, mainly due to the degradation of main polymer chain.From fig. 4, it can be seen that by embodiment 2
It is put into 30wt%H with the film in comparative example 12O2In solution, after impregnating 8 days, the film quality loss in comparative example 1 is 14.7%, is implemented
Film quality loss in example 2 is only 9.6%.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell, it is characterised in that：The perfluorosulfonic acid ion is handed over
Film is changed to apply in direct methanol fuel cell as diaphragm；Four sulphur of CuPc is compounded in the perfluorinated sulfonic acid ion exchange membrane
The mass ratio of sour tetrasodium salt, the perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：1.5~6.
2. the application of perfluorinated sulfonic acid ion exchange membrane according to claim 1 in a fuel cell, it is characterised in that：It is described
The mass ratio of perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：3~6.
3. the application of perfluorinated sulfonic acid ion exchange membrane according to claim 1 or 2 in a fuel cell, it is characterised in that：
The mass ratio of the perfluorinated sulfonic acid ion exchange membrane and the CuPc tetrasulfonic acid tetrasodium salt is 100：3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810470555.0A CN108448142A (en) | 2018-05-17 | 2018-05-17 | A kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810470555.0A CN108448142A (en) | 2018-05-17 | 2018-05-17 | A kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108448142A true CN108448142A (en) | 2018-08-24 |
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ID=63204419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810470555.0A Withdrawn CN108448142A (en) | 2018-05-17 | 2018-05-17 | A kind of application of perfluorinated sulfonic acid ion exchange membrane in a fuel cell |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429310A (en) * | 2019-08-12 | 2019-11-08 | 上海元城汽车技术有限公司 | Modified perfluorinated sulfonic acid composite membrane and preparation method thereof, fuel cell and electric appliance |
-
2018
- 2018-05-17 CN CN201810470555.0A patent/CN108448142A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429310A (en) * | 2019-08-12 | 2019-11-08 | 上海元城汽车技术有限公司 | Modified perfluorinated sulfonic acid composite membrane and preparation method thereof, fuel cell and electric appliance |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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| WW01 | Invention patent application withdrawn after publication |