CN116936889A - Membrane electrode structure of high-concentration direct methanol fuel cell - Google Patents
Membrane electrode structure of high-concentration direct methanol fuel cell Download PDFInfo
- Publication number
- CN116936889A CN116936889A CN202311098521.0A CN202311098521A CN116936889A CN 116936889 A CN116936889 A CN 116936889A CN 202311098521 A CN202311098521 A CN 202311098521A CN 116936889 A CN116936889 A CN 116936889A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- methanol
- membrane electrode
- electrode structure
- anode
- Prior art date
- 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.)
- Pending
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 264
- 239000012528 membrane Substances 0.000 title claims abstract description 40
- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 37
- 239000002086 nanomaterial Substances 0.000 claims abstract description 16
- 230000003197 catalytic effect Effects 0.000 claims abstract description 13
- 239000004966 Carbon aerogel Substances 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 210000000170 cell membrane Anatomy 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
- 229920000557 Nafion® Polymers 0.000 claims description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000010000 carbonizing Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000004108 freeze drying Methods 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 20
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- 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]
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
Abstract
A membrane electrode structure of high concentration direct methanol fuel cell belongs to the technical field of fuel cell, and the specific scheme is as follows: the membrane electrode structure of the high-concentration direct methanol fuel cell comprises an anode, a proton exchange membrane and a cathode which are sequentially arranged, wherein a methanol mass transfer barrier layer is constructed on one surface of the anode far away from the proton exchange membrane, the methanol mass transfer barrier layer comprises a porous nano material, and the porous nano material has hydrophilicity and conductivity. On the premise of not introducing a new structure, the mass transfer resistance of the methanol to the anode catalytic layer is increased so as to reduce methanol permeation, obviously improve the output performance of the direct methanol fuel cell under the high-concentration methanol supply, and further improve the energy density of the cell system.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a membrane electrode structure of a high-concentration direct methanol fuel cell.
Background
The direct methanol fuel cell (Direct methanol fuel cell, DMFC) has the advantages of ultrahigh theoretical energy density (6100 Wh/kg), simple structure, easy integration, environment friendliness, easy fuel storage and transportation and the like, and is one of ideal energy sources of a portable electronic equipment system. However, in practical applications, methanol permeates from the anode to the cathode through the proton exchange membrane, and a mixed potential is generated at the cathode, so that the output voltage of the battery is far lower than the theoretical value (1.21V). Methanol permeation not only reduces cell performance, but also causes poisoning of the cathode catalyst and fuel waste. In order to reduce the negative effects caused by methanol permeation, direct methanol fuel cell systems mostly use low concentration methanol (1-4 mol/L) as fuel supply, which results in a significant decrease in specific energy of the power supply system.
At present, there are two main technical approaches to reduce methanol permeation: the proton exchange membrane is optimized, and the method comprises the steps of increasing the thickness of a Nafion membrane (the proton exchange membrane which is most commonly used), doping and modifying by adopting inorganic matters/organic matters, coating the surface of the Nafion membrane, and the like. This approach can reduce the penetration of methanol into proton exchange membranes, but tends to result in reduced membrane proton conductivity and stability. And secondly, increasing mass transfer resistance of methanol from the liquid storage cavity/feed inlet to the anode catalytic layer. The most widely used means is to independently arrange a methanol mass transfer barrier layer between the membrane electrode and the current collecting plate, and the methanol mass transfer barrier layer has various materials, such as hydrogel, porous metal fiber plates, porous carbon plates, carbon fiber fabrics and the like. The methanol mass transfer barrier layer can obviously improve the working concentration of methanol, but the introduction of a new structure can cause the increase of the volume and the weight of a battery system, so that the specific energy is reduced, and meanwhile, the difficulty of integration with other electronic equipment can be increased due to a more complex structure.
Disclosure of Invention
The invention provides a membrane electrode structure of a high-concentration direct methanol fuel cell, which increases mass transfer resistance from methanol to an anode catalytic layer on the premise of not introducing a new structure so as to reduce methanol permeation, remarkably improve output performance of the direct methanol fuel cell under high-concentration methanol supply and further improve energy density of a cell system.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the membrane electrode structure of the high-concentration direct methanol fuel cell comprises an anode, a proton exchange membrane and a cathode which are sequentially arranged, wherein a methanol mass transfer barrier layer is constructed on one surface of the anode far away from the proton exchange membrane, the methanol mass transfer barrier layer comprises a porous nano material, and the porous nano material has hydrophilicity and conductivity.
Further, the anode comprises an anode supporting layer, an anode microporous layer and an anode catalytic layer which are sequentially arranged in the direction from the outside to the inside of the proton exchange membrane, and the methanol mass transfer barrier layer is coated on the outer surface of the anode supporting layer.
Further, the coating includes spraying or brushing.
Further, the cathode comprises a cathode catalytic layer, a cathode microporous layer and a cathode diffusion layer which are sequentially arranged from the internal proton exchange membrane to the external direction.
Further, the porous nanomaterial comprises one or more of nitrogen-doped carbon aerogel, oxygen-doped carbon aerogel, nitrogen-and oxygen-doped carbon aerogel, nitrogen-doped mesoporous carbon, oxygen-doped mesoporous carbon, and nitrogen-and oxygen-doped mesoporous carbon.
Further, the anode supporting layer is hydrophobic carbon fiber paper.
Further, the preparation method of the nitrogen-doped carbon aerogel comprises the following steps: firstly, uniformly mixing 4.0mL of graphene oxide with the mass fraction of 5%, 16.0mL of deionized water, 0.665mL of formaldehyde and 0.495g of m-diphenol, stirring for 20 minutes, transferring into an autoclave, heating the solution in the autoclave at 85 ℃ for 24 hours, taking out, naturally cooling, freeze-drying to obtain a precursor, and finally, placing the precursor into a tube furnace, carbonizing for 2 hours in an ammonia atmosphere to obtain the nitrogen-doped carbon aerogel, wherein the temperature of the tube furnace is 800 ℃, and the heating rate is 5 ℃ per minute.
Further, the preparation method of the methanol mass transfer barrier layer comprises the following steps: 50mg of nitrogen-doped carbon aerogel is dissolved in a mixed solution of 3ml of water and 7ml of isopropanol, then 5wt% of Nafion solution is added as a binder of the barrier layer, barrier layer ink is prepared, the prepared barrier layer ink is sprayed on one surface of the anode support layer far away from the proton exchange membrane, and a methanol mass transfer barrier layer is formed by drying.
Further, the mass fraction of Nafion in the barrier ink solids was 30%.
Further, the loading range of the nitrogen-doped carbon aerogel in the methanol mass transfer barrier layer is 0.1mg cm -2 To 2.0mg cm -2 。
Compared with the prior art, the invention has the beneficial effects that:
the invention has the advantages that: on the premise of not increasing the extra structure of the fuel cell and hardly increasing the volume and the mass of the cell, a methanol mass transfer barrier layer integrated with an anode support layer is constructed by using a porous nano material with hydrophilicity and conductivity, so that the simplicity and the portability of the cell structure are fully ensured. The invention improves the working methanol concentration of the membrane electrode adaptation, in particular to the output power of the membrane electrode under the high concentration methanol supply. Fig. 2 is a comparison of the performance of a conventional membrane electrode DMFC with a membrane electrode DMFC of the present invention (using passive measurement methods) under different methanol concentrations. The performance of the conventional battery first increased with increasing methanol concentration, and at a methanol concentration of 4M, the battery reached optimal performance with a maximum power density of 26.9mW cm -2 . However, the methanol permeation phenomenon is aggravated with the increase of the methanol concentration, so that the cathode catalytic layer is poisoned and mixed potential is generated, therefore, when the methanol concentration is further increased, the cell performance is obviously reduced, and the maximum power density of the cell is only 17.1mW cm at the 6M methanol concentration -2 Conventional batteries cannot withstand higher concentrations of methanol solution. The fuel cell adopting the membrane electrode structure has obvious difference in output characteristics from the traditional cell, the performance of the cell is lower under the concentration of 4M methanol, and the power density is less than 20mW cm -2 The method comprises the steps of carrying out a first treatment on the surface of the With the further increase of the methanol concentration to 6M, the performance of the traditional DMFC is rapidly reduced under the influence of methanol permeation, but the performance of the improved battery is obviously improved, when the methanol concentration is 6M, the improved battery achieves the optimal performance per se, and the maximum power density is 31.0mW cm -2 The method comprises the steps of carrying out a first treatment on the surface of the The methanol concentration was then increased further until a high concentration of 16M was reached, the improved DMFC maintained good performance, and at 16M methanol concentration, the power density was still 21.8mW cm -2 。
Drawings
FIG. 1 is a schematic illustration of a methanol mass transfer barrier layer having super hydrophilic/super adsorptive properties;
FIG. 2 is a comparison of the performance of a conventional membrane electrode DMFC (a) versus a membrane electrode DMFC (b) of the present invention under different methanol concentrations;
FIG. 3 is a schematic view of the structure of the membrane electrode of the present invention;
in the figure, 1, an anode, 2, a proton exchange membrane, 3, a cathode, 4, a methanol mass transfer blocking layer, 11, an anode supporting layer, 12, an anode micropore layer, 13, an anode catalytic layer, 31, a cathode catalytic layer, 32, a cathode micropore layer, 33 and a cathode diffusion layer.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and examples, and it is apparent that the described examples are only some, but not all, of the examples of the invention, and all other examples obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Example 1
The utility model provides a high concentration direct methanol fuel cell membrane electrode structure, includes positive pole supporting layer 11, positive pole microporous layer 12, positive pole catalytic layer 13, proton exchange membrane 2, negative pole catalytic layer 31, negative pole microporous layer 32 and negative pole diffusion layer 33 that the order set up, builds methanol mass transfer barrier layer 4 in positive pole supporting layer 11 one side (surface) far away from proton exchange membrane 2, methanol mass transfer barrier layer 4 includes porous nanomaterial, porous nanomaterial has hydrophilicity and electric conductivity. The scheme does not change the original structure of the fuel cell, and the porous nano material has ultralow density characteristic and has very limited influence on the weight of a battery system. The porous nano material also has the characteristics of high specific surface area, super hydrophilicity, super adsorbability to methanol and the like, so that the constructed methanol mass transfer barrier layer 4 has a rich hydrophilic capillary structure and super liquid adsorption capacity, and is beneficial to storing methanol solution.
Further, the anode supporting layer 11 is hydrophobic carbon fiber paper. Compared with the conventional anode structure, the adsorption of the porous nano material and the repulsive action of the hydrophobic carbon fiber paper greatly slow down the diffusion of the methanol solution to the anode catalytic layer 13. Therefore, the methanol solution inside the anode catalyst layer 13 is reacted timely and sufficiently, thereby suppressing methanol permeation from anode to cathode, and greatly improving the tolerance of the DMFC to high concentration methanol.
Further, the slurry containing the porous nanomaterial is applied to the outer surface of the anode support layer 11 by spraying or brushing or the like.
Further, the porous nanomaterial comprises one or more of nitrogen-doped carbon aerogel, oxygen-doped carbon aerogel, nitrogen-and oxygen-doped carbon aerogel, nitrogen-doped mesoporous carbon, oxygen-doped mesoporous carbon, and nitrogen-and oxygen-doped mesoporous carbon.
The preparation method of the nitrogen-doped carbon aerogel comprises the following steps: firstly, uniformly mixing 4.0mL of graphene oxide with the mass fraction of 5%, 16.0mL of deionized water, 0.665mL of formaldehyde and 0.495g of m-diphenol, stirring for 20 minutes, transferring into an autoclave, heating the solution in the autoclave at 85 ℃ for 24 hours, taking out, naturally cooling, freeze-drying to obtain a precursor, and finally, placing the precursor into a tube furnace, carbonizing for 2 hours in an ammonia atmosphere to obtain the nitrogen-doped carbon aerogel, wherein the temperature of the tube furnace is 800 ℃, and the heating rate is 5 ℃ per minute.
One exemplary embodiment for constructing the methanol mass transfer barrier layer 4 using nitrogen-doped carbon aerogel (NC) is as follows: 50mg NC was dissolved in a mixed solution of 3ml water and 7ml isopropyl alcohol, followed by addition of Nafion solution (DuPont, 5 wt%) as a binder for the methanol mass transfer barrier layer 4 to obtain a barrier layer ink, wherein the mass fraction of Nafion in the barrier layer ink solid was 30%. Spraying the prepared barrier layer ink on the back side of the anode supporting layer 11, and drying to form a methanol mass transfer barrier layer 4, wherein the NC loading range is 0.1mg cm -2 To 2.0mg cm -2 . The tape is provided withThe anode 1, nafion membrane (Du Pont) and cathode 3 with methanol mass transfer barrier layer 4 were stacked in this order and then hot pressed at 135 ℃ for 5 minutes at 5MPa to produce a membrane electrode.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a direct methanol fuel cell membrane electrode structure of high concentration, includes positive pole (1), proton exchange membrane (2) and negative pole (3) that arrange in proper order and set up, its characterized in that: and constructing a methanol mass transfer barrier layer (4) on one surface of the anode (1) far away from the proton exchange membrane (2), wherein the methanol mass transfer barrier layer (4) comprises a porous nanomaterial, and the porous nanomaterial has hydrophilicity and conductivity.
2. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 1, wherein: the anode (1) comprises an anode supporting layer (11), an anode microporous layer (12) and an anode catalytic layer (13) which are sequentially arranged in the direction from the outside to the inside of the proton exchange membrane (2), and the methanol mass transfer barrier layer (4) is coated on the outer surface of the anode supporting layer (11).
3. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 2, wherein: the coating includes spraying or brushing.
4. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 1, wherein: the cathode (3) comprises a cathode catalytic layer (31), a cathode micropore layer (32) and a cathode diffusion layer (33) which are sequentially arranged from the inner proton exchange membrane (2) to the outer direction.
5. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 1, wherein: the porous nanomaterial comprises one or more of nitrogen-doped carbon aerogel, oxygen-doped carbon aerogel, nitrogen-doped mesoporous carbon, oxygen-doped mesoporous carbon, and nitrogen-oxygen-doped mesoporous carbon.
6. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 2, wherein: the anode supporting layer (11) is hydrophobic carbon fiber paper.
7. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 5, wherein: the preparation method of the nitrogen-doped carbon aerogel comprises the following steps: firstly, uniformly mixing 4.0mL of graphene oxide with the mass fraction of 5%, 16.0mL of deionized water, 0.665mL of formaldehyde and 0.495g of m-diphenol, stirring for 20 minutes, transferring into an autoclave, heating the solution in the autoclave at 85 ℃ for 24 hours, taking out, naturally cooling, freeze-drying to obtain a precursor, and finally, placing the precursor into a tube furnace, carbonizing for 2 hours in an ammonia atmosphere to obtain the nitrogen-doped carbon aerogel, wherein the temperature of the tube furnace is 800 ℃, and the heating rate is 5 ℃ per minute.
8. A high concentration direct methanol fuel cell membrane electrode structure as in claim 5 or 7 wherein: the preparation method of the methanol mass transfer barrier layer (4) comprises the following steps: 50mg of nitrogen-doped carbon aerogel is dissolved in a mixed solution of 3ml of water and 7ml of isopropanol, then 5wt% of Nafion solution is added to serve as a binder of a methanol mass transfer barrier layer (4), barrier layer ink is prepared, the prepared barrier layer ink is sprayed on one surface of an anode support layer (11) far away from a proton exchange membrane (2), and the methanol mass transfer barrier layer (4) is formed by drying.
9. The high concentration direct methanol fuel cell membrane electrode structure as set forth in claim 8, wherein: the mass fraction of Nafion in the barrier ink solids was 30%.
10. A high concentration direct methanol fuel cell membrane electrode structure as in claim 5 or 8 wherein: the loading range of the nitrogen-doped carbon aerogel in the methanol mass transfer barrier layer (4) is 0.1mg cm -2 To 2.0mg cm -2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311098521.0A CN116936889A (en) | 2023-08-29 | 2023-08-29 | Membrane electrode structure of high-concentration direct methanol fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311098521.0A CN116936889A (en) | 2023-08-29 | 2023-08-29 | Membrane electrode structure of high-concentration direct methanol fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116936889A true CN116936889A (en) | 2023-10-24 |
Family
ID=88382746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311098521.0A Pending CN116936889A (en) | 2023-08-29 | 2023-08-29 | Membrane electrode structure of high-concentration direct methanol fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116936889A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1630958A (en) * | 2001-04-11 | 2005-06-22 | 卡伯特公司 | Fuel cells and other products containing modified carbon products |
| CN103840174A (en) * | 2012-11-20 | 2014-06-04 | 中国科学院大连化学物理研究所 | Direct alcohol fuel cell membrane electrode, and preparation and applications thereof |
| CN103943877A (en) * | 2014-04-29 | 2014-07-23 | 哈尔滨工业大学 | Membrane electrode of direct alcohol type fuel battery and preparation method thereof |
| CN103972515A (en) * | 2014-06-04 | 2014-08-06 | 哈尔滨工业大学 | Direct methanol fuel cell membrane electrode with high specific energy and preparation method of electrode |
| CN104577138A (en) * | 2014-12-12 | 2015-04-29 | 浙江工业大学 | Direct methanol fuel cell membrane electrode structure and preparation method thereof |
| CN104600323A (en) * | 2015-01-22 | 2015-05-06 | 哈尔滨工业大学 | High-output power direct methanol fuel cell membrane electrode based on carbon nanotube paper anode |
-
2023
- 2023-08-29 CN CN202311098521.0A patent/CN116936889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1630958A (en) * | 2001-04-11 | 2005-06-22 | 卡伯特公司 | Fuel cells and other products containing modified carbon products |
| CN103840174A (en) * | 2012-11-20 | 2014-06-04 | 中国科学院大连化学物理研究所 | Direct alcohol fuel cell membrane electrode, and preparation and applications thereof |
| CN103943877A (en) * | 2014-04-29 | 2014-07-23 | 哈尔滨工业大学 | Membrane electrode of direct alcohol type fuel battery and preparation method thereof |
| CN103972515A (en) * | 2014-06-04 | 2014-08-06 | 哈尔滨工业大学 | Direct methanol fuel cell membrane electrode with high specific energy and preparation method of electrode |
| CN104577138A (en) * | 2014-12-12 | 2015-04-29 | 浙江工业大学 | Direct methanol fuel cell membrane electrode structure and preparation method thereof |
| CN104600323A (en) * | 2015-01-22 | 2015-05-06 | 哈尔滨工业大学 | High-output power direct methanol fuel cell membrane electrode based on carbon nanotube paper anode |
Non-Patent Citations (2)
| Title |
|---|
| WEIJIAN YUAN等: "Constructing a Cathode Catalyst Layer of a Passive Direct Methanol Fuel Cell with Highly Hydrophilic Carbon Aerogel for Improved Water Management", ACS APPL. MATER. INTERFACES, vol. 11, 25 September 2019 (2019-09-25), pages 37626 - 37634 * |
| 袁玮键: "基于碳气凝胶的高浓度微型直接甲醇燃料电池研究", 中国博士学位论文全文数据库工程科技Ⅰ辑, no. 2, 15 February 2022 (2022-02-15), pages 015 - 118 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110148759B (en) | Preparation method of high-current-density-oriented proton exchange membrane fuel cell gas diffusion layer | |
| AU2020101412A4 (en) | Direct methanol fuel cell membrane electrode for improving catalyst utilization and preparation method thereof | |
| CN103094584B (en) | Nanometer sandwich structure fuel cell non-precious metal catalyst, membrane electrode and preparation method | |
| CN110380060B (en) | Preparation method of membrane electrode capable of improving low-humidity operation performance of proton exchange membrane fuel cell | |
| CN111129529B (en) | Covalent organic framework material used for fuel cell self-humidifying membrane electrode and preparation method thereof | |
| CN102867967A (en) | Electrode material for all vanadium redox energy storage battery and application thereof | |
| CN106560944A (en) | Porous carbon fiber paper electrode material for all-vanadium redox flow battery, and preparation and application thereof | |
| CN112259379B (en) | ZIF-67-DERIVED BASED CO2P@Ni2P/CC honeycomb nano-sheet composite material and application thereof | |
| CN110556546B (en) | Nitrogen and oxygen co-doped hierarchical porous carbon material and preparation method thereof | |
| CN104600323A (en) | High-output power direct methanol fuel cell membrane electrode based on carbon nanotube paper anode | |
| CN112968184A (en) | Electrocatalyst with sandwich structure and preparation method and application thereof | |
| CN113113617B (en) | Membrane electrode, fuel cell gas diffusion layer and preparation method thereof | |
| Li et al. | Highly ordered 3D macroporous scaffold supported Pt/C oxygen electrodes with superior gas-proton transportation properties and activities for fuel cells | |
| CN114142047A (en) | Preparation method of high-permeability gas diffusion layer for fuel cell | |
| US20240072263A1 (en) | Cathode catalyst layer and preparation method and use thereof, and fuel cell | |
| CN108767301A (en) | The controllable carbonaceous tubular type oxygen reduction cathode microbiological fuel cell of size and preparation method | |
| CN110556543B (en) | Independent wood-based anode for direct formic acid fuel cell and preparation method thereof | |
| CN100497449C (en) | Acid pickling macromolecule proton exchange membrane and its preparation method | |
| CN104577147A (en) | High-stability direct methanol fuel cell membrane electrode based on CNT material | |
| CN116936889A (en) | Membrane electrode structure of high-concentration direct methanol fuel cell | |
| CN109888346A (en) | Using electrostatic spinning technique supported catalyst in the preparation method of the fuel battery proton exchange film on membrane fiber surface | |
| CN210516886U (en) | Low Pt loading membrane electrode | |
| CN103490081A (en) | Modified nafion proton exchange membrane, preparation method of proton exchange membrane, direct methanol fuel cell membrane electrode and preparation method of membrane electrode | |
| CN112701309A (en) | Platinum-carbon catalyst for fuel cell stability and preparation method thereof | |
| CN103120960A (en) | Pt-Nafion/C catalyst and preparation method and application for same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yuan Weijian Inventor after: Zhang Xuelin Inventor after: Zhang Yujun Inventor after: Tian Li Inventor after: Zhang Yufeng Inventor before: Zhang Xuelin Inventor before: Yuan Weijian Inventor before: Zhang Yujun Inventor before: Tian Li Inventor before: Zhang Yufeng |
|
| CB03 | Change of inventor or designer information |