CN108832153A - The flow-field plate of one proton exchanging film fuel battery - Google Patents
The flow-field plate of one proton exchanging film fuel battery Download PDFInfo
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- CN108832153A CN108832153A CN201810666630.0A CN201810666630A CN108832153A CN 108832153 A CN108832153 A CN 108832153A CN 201810666630 A CN201810666630 A CN 201810666630A CN 108832153 A CN108832153 A CN 108832153A
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- 239000000446 fuel Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 57
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000000576 coating method Methods 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002905 metal composite material Substances 0.000 claims abstract description 20
- 229920001197 polyacetylene Polymers 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 14
- 238000007598 dipping method Methods 0.000 claims description 11
- 239000010419 fine particle Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 206010013786 Dry skin Diseases 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 150000001721 carbon Chemical group 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004070 electrodeposition Methods 0.000 claims description 3
- 238000001962 electrophoresis Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 150000001455 metallic ions Chemical class 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims 1
- 150000005837 radical ions Chemical class 0.000 claims 1
- 238000005530 etching Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 11
- -1 aluminate ion Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 150000001345 alkine derivatives Chemical class 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0213—Gas-impermeable carbon-containing materials
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0221—Organic resins; Organic polymers
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
- Carbon And Carbon Compounds (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses the flow-field plates of a proton exchanging film fuel battery, including metal substrate and the coating being set on the metal substrate；The metal substrate is with a thickness of aluminum flow-field plate, and the coating includes corrosion-inhibiting coating, polyacetylene layer and graphene metal composite film；The aluminum flow-field plate is equipped with runner with a thickness of 100-200um, the aluminum flow-field plate；The corrosion-inhibiting coating is the solid graphite ene coatings formed in the aluminum flow field plate faces；The polyacetylene layer and the graphene metal composite film, which are alternately repeated, to be arranged on the outside of the corrosion-inhibiting coating, and duplicate number is 3-8 times.Solve etching problem of the aluminum flow-field plate under fuel cell environment.
Description
Technical field
The present invention relates to the flow-field plates of a proton exchanging film fuel battery.
Background technique
Fuel cell is a kind of hair that fuel and oxidant can be efficiently converted into electric energy by electrode reaction
Electric installation.Proton Exchange Membrane Fuel Cells (PEMFC, Proton exchange membrane fuel cells) is with solid
Proton exchange membrane is electrolyte, and hydrogen or methanol are fuel, and air or oxygen is the fuel cell of oxidant.
The core of PEMFC is MEA（Membrane electrode assembly）With double-current field plate, MEA is the place of electrochemical reaction, double-current field plate
Realize gas evenly distribute, collected current and draining.In order to which gas distribution and collected current, double-current field plate need to usually have good
The penetrability of electric conductivity, heating conduction, fire-resistant material and the oxidant got well and the corrosion resistance in electrochemical environment etc..It is double
Flow-field plate includes two flow-field plates of pairing, and flow-field plate is varied, common are porous body flow field and by various metal mesh structures
The mesh flow field plate made, dotted, part snake type flow-field plate, interdigital shape flow field etc..
Conductive and corrosion resistant coating, common metal flow field plate usually are coated in metal flow field plate surface in the prior art
For stainless steel, for stainless steel compared with aluminium alloy, the two price is suitable, but the preparation process of stainless steel is complicated, the system of aluminium alloy
Standby simple process, but the chemical property of aluminium is active, unstable, how aluminium alloy to be applied in flow-field plate, is this field skill
Art personnel technical problem urgently to be solved.
Summary of the invention
The present invention proposes the flow-field plate of a proton exchanging film fuel battery, solves aluminum flow-field plate in fuel cell ring
Etching problem under border.
The technical proposal of the invention is realized in this way：
The flow-field plate of one proton exchanging film fuel battery, including metal substrate and the coating being set on the metal substrate；
The metal substrate is with a thickness of aluminum flow-field plate, and the coating includes corrosion-inhibiting coating, polyacetylene layer and graphene metal composite
Film；The aluminum flow-field plate is equipped with runner with a thickness of 100-200um, the aluminum flow-field plate；The corrosion-inhibiting coating is in institute
State the solid graphite ene coatings of aluminum flow field plate faces formation；The polyacetylene layer and the graphene metal composite film are alternately heavy
Multiple to be arranged on the outside of the corrosion-inhibiting coating, duplicate number is 3-8 times；
Wherein, the pretreated aluminum flow-field plate be put into containing concentration be 1-100mmol/L tetrahydroxy close aluminate from
It is impregnated 2-24 hours in the graphene oxide water solution of the 0.05-5mg/ml of son, dipping temperature is 20-100 DEG C；After taking out drying
It is handled 2-24 hours in the sodium hypophosphite solution of dipping and 20-160g/L, treatment temperature is 20-100 DEG C；It is cleaned after taking-up dry
It is dry, i.e., solid graphite ene coatings are formd in the aluminum flow field plate faces；
The aluminum flow-field plate is put into acetone soln, using three extremely electric systems, the aluminum flow-field plate is working electrode, is led to
Enter acetylene gas, electric current low potential is -1.5V, current density 30mA/cm2, polarization time 150-220s, in the aluminum stream
Polyacetylene layer is formed on field plate；
Graphene layer structure orderly, fine and close is presented in the graphene metal composite film, exists altogether between graphene film and film
There are a large amount of spherical or hemispherical metallic fine particles, particle diameters and be between 5-300nm in valence link, edge and fault location, gold
The number ratio for belonging to element courtyard number and carbon atom is 0.5-10%.
Optionally, it is 3-80mmol/L that the tetrahydroxy, which closes the concentration of aluminate ion,；The graphene oxide water solution
Volume concentration is 0.1-3mg/mL；Dipping temperature of the aluminum flow-field plate in the solution is 30-90 DEG C, dip time 3-18
Hour.
Optionally, the concentration of the sodium hypophosphite solution is 30-120g/L；Place of the aluminum flow-field plate in the solution
Managing temperature is 40-180 DEG C, and the processing time is 4-18 hours.
Optionally, the metal in the graphene metal composite film is copper, nickel, manganese, zinc, silver.
Optionally, the aqueous metallic ions of predetermined concentration are added in single-layer graphene oxide solution, with poly- second
The aluminum flow-field plate and platinized platinum of alkynes layer do anode and cathode respectively, improve 20V voltage, electrophoresis with D.C. regulated power supply
1min forms thin film in the aluminum flow-field plate described in anode, and 40 DEG C of dewatered dryings, obtain electrochemical deposition in vacuum tank
Graphene oxide film；Then by aluminum flow-field plate merging tubular quartz furnace high temperature hydrogen-oxygen reduction, so that metal fine
Particle is embedded in graphene composite film.
Optionally, the coating with a thickness of 180-210nm.
Using above-mentioned technical proposal, beneficial effects of the present invention are：
Corrosion-inhibiting coating is set on the surface of aluminum flow-field plate, by introducing certain density four hydroxyl in graphene oxide water solution
Base closes aluminate ion, coats one layer of solid graphite in aluminum flow field plate faces using method of chemical immersion and related art method
Alkene.The chloride ion generated in dipping process crosslinks graphene oxide and aluminum flow-field plate, and increases the binding force of coating
By force, aluminium ion, which constantly generates, makes graphene oxide layer layer heap product, and then very fine and close.Although graphene oxide layer is very fine and close,
But since graphene oxide layer carries hole, so being alternately repeated setting polyacetylene layer and graphene metal composite on the outside
Film.Polyacetylene layer with a thickness of 12-22nm, in graphene metal composite film, metallic fine particles are embedded in composite membrane, can block
The gap of graphene, polyacetylene layer and graphene metal composite film mutually block, and further increase the corrosion resistance of coating.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the structure of one specific embodiment of flow-field plate of Proton Exchange Membrane Fuel Cells provided herein is shown
It is intended to.
Wherein：1, metal substrate 2, corrosion-inhibiting coating 3, polyacetylene layer 4, graphene metal composite film.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides the flow-field plate of a proton exchanging film fuel battery, including metal substrate 1 and it is set to described
Coating on metal substrate 1；The metal substrate 1 is with a thickness of aluminum flow-field plate, and the coating includes corrosion-inhibiting coating 2, poly- second
Alkynes layer 2 and graphene metal composite film 4；The aluminum flow-field plate is equipped with stream with a thickness of 100-200um, the aluminum flow-field plate
Road；The corrosion-inhibiting coating 2 is the solid graphite ene coatings formed in the aluminum flow field plate faces；The polyacetylene layer 3 and institute
It states graphene metal composite film 4 and is alternately repeated setting in 2 outside of corrosion-inhibiting coating, duplicate number is 3-8 times；
Wherein, the pretreated aluminum flow-field plate be put into containing concentration be 1-100mmol/L tetrahydroxy close aluminate from
It is impregnated 2-24 hours in the graphene oxide water solution of the 0.05-5mg/ml of son, dipping temperature is 20-100 DEG C；After taking out drying
It is handled 2-24 hours in the sodium hypophosphite solution of dipping and 20-160g/L, treatment temperature is 20-100 DEG C；It is cleaned after taking-up dry
It is dry, i.e., solid graphite ene coatings are formd in the aluminum flow field plate faces；
The aluminum flow-field plate is put into acetone soln, using three extremely electric systems, the aluminum flow-field plate is working electrode, is led to
Enter acetylene gas, electric current low potential is -1.5V, current density 30mA/cm2, polarization time 150-220s, in the aluminum stream
Polyacetylene layer 3 is formed on field plate；
Orderly, fine and close graphene layer structure is presented in the graphene metal composite film 4, exists altogether between graphene film and film
There are a large amount of spherical or hemispherical metallic fine particles, particle diameters and be between 5-300nm in valence link, edge and fault location, gold
The number ratio for belonging to element courtyard number and carbon atom is 0.5-10%.
Corrosion-inhibiting coating 2 is set on the surface of aluminum flow-field plate, by introducing a certain concentration in graphene oxide water solution
Tetrahydroxy close aluminate ion, coat one layer of densification in aluminum flow field plate faces using method of chemical immersion and related art method
Graphene.The chloride ion generated in dipping process crosslinks graphene oxide and aluminum flow-field plate, and makes the combination of coating
Power enhancing, aluminium ion, which constantly generates, makes graphene oxide layer layer heap product, and then very fine and close.Although graphene oxide layer causes very much
It is close, but since graphene oxide layer carries hole, so being alternately repeated setting polyacetylene layer 3 on the outside and graphene metal is multiple
Close film 4.Polyacetylene layer 3 with a thickness of 12-22nm, in graphene metal composite film 4, metallic fine particles are embedded in composite membrane, energy
The gap of graphene is enough blocked, polyacetylene layer and graphene metal composite film mutually block, and further increase the anticorrosive of coating
Performance.
Specifically, the concentration that the tetrahydroxy closes aluminate ion is 3-80mmol/L；The graphene oxide water solution
Volume concentration is 0.1-3mg/mL；Dipping temperature of the aluminum flow-field plate in the solution is 30-90 DEG C, dip time 3-18
Hour.
The concentration of the sodium hypophosphite solution is 30-120g/L；Treatment temperature of the aluminum flow-field plate in the solution
It is 40-180 DEG C, the processing time is 4-18 hours.
The technique coating method is simple, easy to operate, compared with the methods of plating, chemical plating and physical vapour deposition (PVD), at
This is lower, and operating efficiency is high, and the requirement to technical staff is relatively low.
In above-mentioned each specific embodiment, the metal in the graphene metal composite film is copper, nickel, manganese, zinc, silver.
Further, the aqueous metallic ions of predetermined concentration are added in single-layer graphene oxide solution, it is poly- to have
The aluminum flow-field plate and platinized platinum of acetylene layer do anode and cathode respectively, improve 20V voltage, electrophoresis with D.C. regulated power supply
1min forms thin film in the aluminum flow-field plate described in anode, and 40 DEG C of dewatered dryings, obtain electrochemical deposition in vacuum tank
Graphene oxide film；Then by aluminum flow-field plate merging tubular quartz furnace high temperature hydrogen-oxygen reduction, so that metal fine
Particle is embedded in graphene composite film.
Specifically, the coating with a thickness of 180-210nm.
Graphene film is supported by metal ion, metal ion forms metallic particles, is embedded in the sub- film of Graphene powder, not only
The gap for filling up graphene yet further enhances the electric conductivity of graphene film.Which can prepare various metals and stone
The composite membrane of black alkene, whole process is easy to operate, and it is high that degree is adjusted.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. the flow-field plate of a proton exchanging film fuel battery, which is characterized in that including metal substrate and be set to the metal
Coating on substrate；The metal substrate is with a thickness of aluminum flow-field plate, and the coating includes corrosion-inhibiting coating, polyacetylene layer and stone
Black alkene metal composite film；The aluminum flow-field plate is equipped with runner with a thickness of 100-200um, the aluminum flow-field plate；It is described anti-
Rotten coating is the solid graphite ene coatings formed in the aluminum flow field plate faces；The polyacetylene layer and the graphene metal
Composite membrane, which is alternately repeated, to be arranged on the outside of the corrosion-inhibiting coating, and duplicate number is 3-8 times；
Wherein, the pretreated aluminum flow-field plate be put into containing concentration be 1-100mmol/L tetrahydroxy close aluminate from
It is impregnated 2-24 hours in the graphene oxide water solution of the 0.05-5mg/ml of son, dipping temperature is 20-100 DEG C；After taking out drying
It is handled 2-24 hours in the sodium hypophosphite solution of dipping and 20-160g/L, treatment temperature is 20-100 DEG C；It is cleaned after taking-up dry
It is dry, i.e., solid graphite ene coatings are formd in the aluminum flow field plate faces；
The aluminum flow-field plate is put into acetone soln, using three extremely electric systems, the aluminum flow-field plate is working electrode, is led to
Enter acetylene gas, electric current low potential is -1.5V, current density 30mA/cm2, polarization time 150-220s, in the aluminum stream
Polyacetylene layer is formed on field plate；
Graphene layer structure orderly, fine and close is presented in the graphene metal composite film, exists altogether between graphene film and film
There are a large amount of spherical or hemispherical metallic fine particles, particle diameters and be between 5-300nm in valence link, edge and fault location, gold
The number ratio for belonging to element courtyard number and carbon atom is 0.5-10%.
2. the flow-field plate of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that the tetrahydroxy closes aluminic acid
The concentration of radical ion is 3-80mmol/L；The graphene oxide water solution volume concentration is 0.1-3mg/mL；The aluminum flow field
Dipping temperature of the plate in the solution is 30-90 DEG C, and dip time is 3-18 hours.
3. the flow-field plate of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that the sodium hypophosphite solution
Concentration be 30-120g/L；Treatment temperature of the aluminum flow-field plate in the solution is 40-180 DEG C, and the processing time is 4-18
Hour.
4. the flow-field plate of Proton Exchange Membrane Fuel Cells as described in any one of claims 1 to 3, which is characterized in that the stone
Metal in black alkene metal composite film is copper, nickel, manganese, zinc, silver.
5. the flow-field plate of Proton Exchange Membrane Fuel Cells as claimed in claim 4, which is characterized in that in single-layer graphene oxide
In solution be added predetermined concentration aqueous metallic ions, with polyacetylene layer the aluminum flow-field plate and platinized platinum do respectively
Anode and cathode improves 20V voltage with D.C. regulated power supply, and electrophoresis 1min forms one layer in the aluminum flow-field plate described in anode
Film, 40 DEG C of dewatered dryings in vacuum tank, obtains electrochemical deposition graphene oxide film；Then by the aluminum flow-field plate
It is placed in the reduction of tubular quartz furnace high temperature hydrogen-oxygen, so that metallic fine particles are embedded in graphene composite film.
6. the flow-field plate of Proton Exchange Membrane Fuel Cells as claimed in claim 5, which is characterized in that the coating with a thickness of
180-210nm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666630.0A CN108832153B (en) | 2018-06-26 | 2018-06-26 | Flow field plate of proton exchange membrane fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666630.0A CN108832153B (en) | 2018-06-26 | 2018-06-26 | Flow field plate of proton exchange membrane fuel cell |
Publications (2)
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| CN114665102A (en) * | 2022-03-21 | 2022-06-24 | 北京氢沄新能源科技有限公司 | Metal bipolar plate of fuel cell and preparation method thereof |
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