CN102064332A - Solar direct alcohol fuel cell - Google Patents
Solar direct alcohol fuel cell Download PDFInfo
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- CN102064332A CN102064332A CN2010105749672A CN201010574967A CN102064332A CN 102064332 A CN102064332 A CN 102064332A CN 2010105749672 A CN2010105749672 A CN 2010105749672A CN 201010574967 A CN201010574967 A CN 201010574967A CN 102064332 A CN102064332 A CN 102064332A
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- platinum
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- 239000000446 fuel Substances 0.000 title claims abstract description 68
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 51
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000003054 catalyst Substances 0.000 claims abstract description 43
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 29
- 239000011521 glass Substances 0.000 claims abstract description 22
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 7
- FHMDYDAXYDRBGZ-UHFFFAOYSA-N platinum tin Chemical compound [Sn].[Pt] FHMDYDAXYDRBGZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 claims abstract description 6
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 claims abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 126
- 229910052799 carbon Inorganic materials 0.000 claims description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 49
- 239000007864 aqueous solution Substances 0.000 claims description 20
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- CFQCIHVMOFOCGH-UHFFFAOYSA-N platinum ruthenium Chemical compound [Ru].[Pt] CFQCIHVMOFOCGH-UHFFFAOYSA-N 0.000 claims description 5
- 229920000128 polypyrrole Polymers 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005349 anion exchange Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000005518 electrochemistry Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 229910052707 ruthenium Inorganic materials 0.000 abstract description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 208000001408 Carbon monoxide poisoning Diseases 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000006056 electrooxidation reaction Methods 0.000 description 9
- 229920000557 Nafion® Polymers 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000002484 cyclic voltammetry Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- 239000003011 anion exchange membrane Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910002849 PtRu Inorganic materials 0.000 description 1
- 229910002847 PtSn Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012974 tin catalyst Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a direct alcohol fuel cell and aims at providing a solar direct alcohol fuel cell. A container wall of the fuel cell can be formed by conductive glass, a sealing ring and a splint provided with an air through hole together, wherein the inner wall of the conductive glass is coated by a tin indium oxide layer; the cathode of the fuel cell is connected with the splint; the anode of the fuel cell is connected with the tin indium oxide layer of the conductive glass; the fuel cell takes carbon-carried platinum, carbon-carried palladium, carbon-carried platinum and ruthenium or carbon-carried platinum tin as anode catalysts and takes carbon-carried platinum or polypyrrole-modified carbon-carried cobalt hydroxide as a cathode catalyst; and a water solution of alcohol is added on the anode side of the fuel cell to be used an anode liquid. According to the invention, by using ultraviolet light in solar energy to reduce the phenomenon of carbon monoxide poisoning generated on the surface of the platinum in the electrochemistry oxidation process of alcohol and by fully giving full play of the direct alcohol fuel cell, like the solar cell, the direct alcohol fuel cell can be widely applied to the fields of centralized power generation, meteorology, geology, sea island, husbandry, field special light sources and the like and has higher social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of direct alcohol fuel battery of under solar light irradiation, working, more particularly, the present invention relates to a kind of ultraviolet ray that utilizes in the sunlight, alleviate the alcohols anthracemia that the platinum catalyst surface takes place in electrochemical oxidation process, improve the method for direct alcohol fuel battery performance.
Background technology
Proton Exchange Membrane Fuel Cells (PEMFC) is considered to portable and compact power field one of the most promising technology.Though the PEMFC technology reaches its maturity, yet its commercialization also faces an insoluble problem, the i.e. production of hydrogen and accumulating.The accumulating of hydrogen mainly contains dual mode: the first, and gas cylinder storage hydrogen, shortcoming is that volumetric specific energy is low, to the equipment requirements height, and has certain potential safety hazard; The second, utilize reformation gas to give the fuel cell charging, this must make fuel cell system complicated, increases cost.
People attempt seeking other alternative fuel to overcome the technology barrier of PEMFC, and are wherein in the majority with organic molecule.For direct alcohol fuel battery, there is not the problem of accumulating difficulty in fuel, but reactivity is low and very easily make catalyst poisoning, causes the low of battery performance.
For example, the electrochemical oxidation of methyl alcohol on platinum catalyst is made of a plurality of elementary reactions:
Wherein reaction (5) is the rate controlling step of methanol electrooxidation.The one of the main reasons that performance of direct methanol fuel cells is lower than hydrogen fuel cell is that the intermediate product CO of methanol electrooxidation is adsorbed on the active sites of platinum, is difficult to further oxidized.In order to quicken the electrochemical oxidation of CO, the alloy catalyst that adopts platinum and other transition metal to form usually is as PtRu, PtSn.Can form hydroxyl groups (OH) on Ru and Sn positions of elements, the CO that is adsorbed on the platinum active sites is oxidized to CO under the effect of OH
2And H
2O, thus the absorption of elimination CO regains the platinum active sites.
Catalyst ability determining electrode reaction rate, Levy and Boudart find that the electronic structure on surface of WC and Pt is similar and make WC that the character the same with Pt be arranged, though the preparation method of WC affects the catalysis behavior of WC to a great extent, can't reach the degree that substitutes platinum, but the binary or the multi-element metal carbide of W and other metals show catalytic activity preferably.Result of study shows, is containing the binary metal carbide of tungsten [(W, M) C; M=V, Cr, Mn, Ni, Mo)] in, contain the catalytic activity maximum of the catalyst of Mo to methyl alcohol.Taking the ratio of Mo/ (W+Mo)=0.2, be that performance is best in all binary metal carbide catalyst at the catalyst performance of 700 ℃ of following carbonization gained, and corrosion current can be ignored.In acidic electrolysis bath, of short duration methanol oxidation electric current has only appearred for the WC catalyst that contains W merely, a few minutes after-current almost reduce to 0; But the WC catalyst that contains Mo still has electric current and can reach a stationary value in the methyl alcohol system that feeds after a very long time.Think that Mo may be some poisonous intermediate product of having removed methanol oxidation in such electrode reaction, or methanol oxidation is undertaken by the response path that another one does not have the toxicity intermediate product to generate.Various metals such as Ni, W, Mo, Fe are carried out finding in the research that combined preparation becomes various catalyst, though Ni catalyst, NiC catalyst and (Fe, W) C does not have catalytic activity to methyl alcohol, and corrosion current is very big, still (Ni, W) C, (Ni, Mo) C, (Ni, Mo, W) C has catalytic activity to methyl alcohol, and passivation takes place in solution.
Burstein etc. have proposed that (Ta, Ni) C is to the catalytic mechanism of methanol oxidation in the acid system.Think, (Ta, Ni) the C surface has suitable C and O outside unsettled, when methanol molecules was close, the C in the methyl alcohol adsorbed mutually with the O of catalyst surface, and the O in the methyl alcohol adsorbs mutually with the C of catalyst surface, form a ring molecule structure, electrochemical oxidation takes place this moment make ring rupture, electronics shifts to catalyst inside, and CO is arranged simultaneously
2Generate Deng product.As seen, the C of catalyst surface and O exist and interatomic distance suitably makes that might form annular absorption framework is its key that catalytic activity is arranged simultaneously.
Ultraviolet wavelength in the sunlight is shorter than visible light, but the electromagnetic radiation longer than X ray, ultraviolet wavelength is 10-400nm.Ultraviolet light can make the carbonyl such as the Mo (CO) of some carbonyl transistion metal compounds
6Or Fe (CO)
5On the CO desorption, obtain active surface.Find that under study for action under UV-irradiation, Pt is being oxidized to PtO than under the electronegative potential easily, the PtO that electronegative potential forms down has very big activity, generates CO with the intermediate product CO reaction of methanol electrooxidation on the active sites that is adsorbed on platinum
2Thereby, eliminated the toxic action of CO to platinum catalyst.
Summary of the invention
The technical problem to be solved in the present invention is, overcome deficiency of the prior art, reduce the absorption of CO, improve the performance of direct alcohol fuel battery in the platinum active sites, provide a kind of ultraviolet ray that utilizes in the sunlight, the direct alcohol fuel battery of the solar energy of under solar light irradiation, working.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Provide a kind of solar energy direct alcohol fuel battery, the clamping plate (negative electrode stream plate) that applied electro-conductive glass, the sealing ring of indium tin oxide layer and had an air hole by inwall are formed the container wall of fuel cell jointly, the negative electrode and the clamping plate of fuel cell join, and the indium tin oxide layer of anode and electro-conductive glass joins; This fuel cell carries platinum, carbon with carbon and carries palladium, carbon and carry platinum Ruthenium or carbon to carry platinum tin be anode catalyst, carries platinum or the polypyrrole modifying carbon based cobaltous hydroxide is a cathod catalyst with carbon; The anode-side of fuel cell installs the aqueous solution of alcohol additional as anolyte.
Among the present invention, the anode and the negative electrode of fuel cell prepare by following manner: with anode catalyst and cathod catalyst respectively with binding agent, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix, and form anode ink and negative electrode ink; The anode ink is sprayed on the carbon paper (anode catalyst matrix) of possess hydrophilic property, the negative electrode ink is sprayed on the carbon paper (cathod catalyst matrix) with hydrophobicity, be anode and negative electrode after the drying.
Among the present invention, the cathode conductor of this fuel cell is drawn by indium tin oxide layer, and positive wire is drawn by clamping plate (negative electrode stream plate).The indium tin oxide layer of electro-conductive glass plays anode collector; Negative electrode stream plate plays cathode current collector, and undertakes the work that distributes oxygen simultaneously.
Among the present invention, in the aqueous solution of described alcohol, the concentration of alcohol is 0.1～1M L
-1Comprising concentration in the solution is 0～2M L
-1Sulfuric acid.
Among the present invention, the alcohol in the aqueous solution of described alcohol is methyl alcohol or ethanol.
Among the present invention, described binding agent is the POLYPROPYLENE GLYCOL or the proton exchange resins aqueous solution, and content is 5～10wt%.
Among the present invention, described electro-conductive glass is the quartz glass that applies indium tin oxide layer.
Among the present invention, fuel inlet is established in the bottom of the anode-side of described fuel cell, and fuel outlet is established at the top.
Among the present invention, described barrier film is an amberplex.
Among the present invention, described amberplex is that anion exchange is touched or proton exchange membrane.
The beneficial effect that the present invention has:
The present invention utilizes the ultraviolet light in the solar energy to alleviate the alcohol anthracemia that platinum catalyst surface takes place in electrochemical oxidation process, proposes a kind of method of the new direct alcohol fuel battery performance of raising.Give full play to the advantage of direct alcohol fuel battery, such to solar cell, can be widely used in fields such as centralized power generation, meteorology, geology, island, the open-air special light sources of farming and animal husbandry, have high social and economic benefit.
Figure of description
Fig. 1 be embodiment one medium ultraviolet rayed to ethanol at 0.5M L
-1H
2SO
4In the electrochemistry oxygen galvanic current and the influence of electric potential relation, it is catalyst that carbon carries palladium.Curve a and c are the cyclic voltammetry curve of no ultraviolet lighting, and curve b is the cyclic voltammetry curve of ultraviolet lighting, and the cyclic voltammetry curve testing sequence is a, b, c.
The structure of the direct alcohol fuel battery of solar energy that Fig. 2 the present invention adopts.
Fig. 3 be among the embodiment 4 the varying strength UV-irradiation to the influence of methyl alcohol and ethanol electrochemistry oxygen galvanic current.
Fig. 4 is 0.5mWcm for ultraviolet irradiation intensity
-2The time the constant potential discharge curve.
Reference numeral among Fig. 2 is:
1 barrier film, 2 anode catalyst matrixes, 3 anode catalysts, 4 conductive indium-tin oxide layers, 5 quartz glasss, 6 sealing rings, 7 cathod catalysts, 8 cathod catalyst matrixes, 9 air flues, 10 clamping plate (negative electrode stream plate), 11 fuel inlets, 12 fuel outlets, 13 negative terminals, 14 positive terminals.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Carbon carries platinum, carbon and carries palladium, carbon to carry the preparation that platinum Ruthenium or carbon carries platinum tin be known technology well known to those skilled in the art, the preparation method of polypyrrole modifying carbon based cobaltous hydroxide can be referring to the disclosure of Chinese invention patent (CN101552345), and the present invention repeats no more.
Embodiment one: anode is made (1)
Get carbon-containing palladium catalyst powder 0.1 gram (＜400 order) of platiniferous 40wt% and put into mortar and adhesive: POLYPROPYLENE GLYCOL (PVA) aqueous solution (concentration is 5wt%) grinds, and carbon carries palladium and PVA solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on the hydrophilic carbon paper of 2x2 square centimeter and make anode.Fig. 1 be UV-irradiation to ethanol at 0.5M L
-1H
28O
4In the electrochemistry oxygen galvanic current and the influence of electric potential relation, concentration of alcohol is 0.5M L
-1Curve a and c are the cyclic voltammetry curve of no ultraviolet lighting, and curve b is ultraviolet lighting (intensity of illumination 50mW cm
-2) cyclic voltammetry curve, the cyclic voltammetry curve testing sequence is a, b, c.The result shows that ultraviolet lighting has improved the electrochemistry oxygen galvanic current of ethanol.
Embodiment two: anode is made (2)
Get platiniferous 40wt%, the carbon of tin 20wt% carries platinum-tin catalyst powder 0.1 gram (＜400 order) puts into mortar and adhesive: POLYPROPYLENE GLYCOL (PVA) aqueous solution (concentration is 5wt%) grinds, and carbon carries platinum tin and PVA solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on the hydrophilic carbon paper of 2x2 square centimeter and make anode.Anode scribble carbon carry the face of platinum tin and indium tin oxide-coated glass scribble tin indium oxide towards right, place on the electro-conductive glass, 0.5 centimetre surplus limit is reserved on each limit of glass, at 0.1kg cm
-2Pressure under compression moulding.
Embodiment three: negative electrode is made
Get carbon supported platinum catalyst powder 0.1 gram (＜400 order) of platiniferous 40wt% and put into mortar and adhesive: the Nafion aqueous solution (concentration is 10wt%) grinds, and carbon carries platinum and the Nafion aqueous solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on 2 * 2 square centimeters the hydrophobic carbon paper and make negative electrode.
Embodiment four: the battery assembling
Get platiniferous 40wt%, the carbon of Ruthenium 20wt% carries platinum Ruthenium catalyst fines 0.1 gram (＜400 order) puts into mortar and adhesive: the Nafion aqueous solution (concentration is 10wt%) grinds, and carbon carries platinum and the Nafion aqueous solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on 2 * 2 square centimeters the hydrophilic carbon paper and make anode.Anode scribble carbon carry the face of platinum Ruthenium and indium tin oxide-coated glass scribble tin indium oxide towards right, place on the electro-conductive glass, 0.5 centimetre surplus limit is reserved on each limit of glass, at 0.1kg cm
-2Pressure under compression moulding.
Negative electrode assembling with the carbon paper side of anode among relative with barrier film to the embodiment three forms sandwich structure, and the material of barrier film is a proton exchange membrane.Electro-conductive glass-anode-film-negative electrode and the stainless steel clamping plate and the sealing ring that have air hole are assembled into the solar energy alcohol fuel battery by Fig. 2.Illumination intensity was to the influence of battery output current when Fig. 3 discharged for the sulfuric acid solution that feeds methyl alcohol and ethanol.Sulfuric acid concentration is 2M L
-1, methyl alcohol and concentration of ethanol are 1M L
-1Found that ultraviolet irradiation can both improve the output current of alcohol fuel battery, use the effect that methanol fuel produced to be higher than the use effect that alcohol fuel produced.
Embodiment five: the discharge of battery
Get carbon supported platinum catalyst powder 0.1 gram (＜400 order) of platiniferous 40wt% and put into mortar and adhesive: the Nafion aqueous solution (concentration is 10wt%) grinds, and carbon carries platinum and the Nafion aqueous solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on 2 * 2 square centimeters the hydrophilic carbon paper and make anode.Anode scribble carbon carry the face of platinum and indium tin oxide-coated glass scribble tin indium oxide towards right, place on the electro-conductive glass, 0.5 centimetre surplus limit is reserved on each limit of glass, at 0.1kg cm
-2Pressure under compression moulding.
Negative electrode assembling with the carbon paper side of anode among relative with barrier film to the embodiment three forms sandwich structure, and the material of barrier film is a proton exchange membrane.Electro-conductive glass-anode-film-negative electrode and the stainless steel clamping plate and the sealing ring that have air hole are assembled into the solar energy alcohol fuel battery by Fig. 2.From the fuel inlet input methanol aqueous solution of anode of fuel cell side, methanol concentration is 0.1M L
-1
Use the ultraviolet irradiation anode, load is connected anode respectively with lead and negative electrode discharges.The result of Fig. 4 shows that the discharging current of methyl alcohol is significantly increased under the ultraviolet irradiation.In a single day and close uviol lamp, the discharging current of methyl alcohol just falls after rise.This shows that fully ultraviolet irradiation is to improving the effect of methanol oxidation electric current.
Embodiment six: the solar energy direct methanol fuel cell of anion-exchange membrane
Get carbon supported platinum catalyst powder 0.1 gram (＜400 order) of platiniferous 40wt% and put into mortar and adhesive: the Nafion aqueous solution (concentration is 10wt%) grinds, and carbon carries platinum and the Nafion aqueous solution, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on 2 * 2 square centimeters the hydrophilic carbon paper and make anode.Anode scribble carbon carry the face of platinum and indium tin oxide-coated glass scribble tin indium oxide towards right, place on the electro-conductive glass, 0.5 centimetre surplus limit is reserved on each limit of glass, at 0.1kg cm
-2Pressure under compression moulding.
Get polypyrrole modifying carbon based cobaltous hydroxide (polypyrrole content is 10wt%) catalyst fines 0.15 gram (＜400 order) that contains cobalt hydroxide 20wt% and put into mortar and adhesive: POLYPROPYLENE GLYCOL solution (concentration is 10wt%) grinds, and catalyst and POLYPROPYLENE GLYCOL solution, methyl alcohol, water were by mass ratio 1: 7: 3: 3 mix.Be coated to area after mixing lentamente and be to dry in the shade on 2 * 2 square centimeters the hydrophobic carbon paper and make negative electrode.
Relative with barrier film to negative electrode assembling forms sandwich structure with the carbon paper side of anode, and the material of barrier film is an anion-exchange membrane.Electro-conductive glass-anode-film-negative electrode and the stainless steel clamping plate and the sealing ring that have air hole are assembled into the solar energy alcohol fuel battery by Fig. 2.From the fuel inlet input methanol aqueous solution of anode of fuel cell side, methanol concentration is 0.5M L
-1
Use the ultraviolet irradiation anode, load is connected anode respectively with lead and negative electrode discharges.Same with embodiment five, the discharging current of methyl alcohol is significantly increased under the ultraviolet irradiation.In a single day and close uviol lamp, the discharging current of methyl alcohol just falls after rise.This shows that fully under alkaline environment ultraviolet irradiation quickens the electrochemical oxidation of methyl alcohol equally.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (10)
1. the direct alcohol fuel battery of solar energy, the clamping plate that applied electro-conductive glass, the sealing ring of indium tin oxide layer and had an air hole by inwall are formed the container wall of fuel cell jointly, the negative electrode and the clamping plate of fuel cell join, and the indium tin oxide layer of anode and electro-conductive glass joins; It is characterized in that this fuel cell carries platinum, carbon with carbon and carries palladium, carbon and carry platinum Ruthenium or carbon to carry platinum tin be anode catalyst, carry platinum or the polypyrrole modifying carbon based cobaltous hydroxide is a cathod catalyst with carbon; The anode-side of fuel cell installs the aqueous solution of alcohol additional as anolyte.
2. fuel cell according to claim 1, it is characterized in that, the anode and the negative electrode of fuel cell prepare by following manner: with anode catalyst and cathod catalyst respectively with binding agent, methyl alcohol, water by mass ratio 1: 7: 3: 3 mix, and form anode ink and negative electrode ink; The anode ink is sprayed on the carbon paper of possess hydrophilic property, the negative electrode ink is sprayed on the carbon paper with hydrophobicity, be anode and negative electrode after the drying.
3. fuel cell according to claim 1 is characterized in that the cathode conductor of this fuel cell is drawn by indium tin oxide layer, and positive wire is drawn by clamping plate.
4. fuel cell according to claim 1 is characterized in that, in the aqueous solution of described alcohol, the concentration of alcohol is 0.1～1ML
-1Comprising concentration in the solution is 0～2M L
-1Sulfuric acid.
5. fuel cell according to claim 1 is characterized in that, the alcohol in the aqueous solution of described alcohol is methyl alcohol or ethanol.
6. fuel cell according to claim 1 is characterized in that, described binding agent is the POLYPROPYLENE GLYCOL or the proton exchange resins aqueous solution, and content is 5～10wt%.
7. fuel cell according to claim 1 is characterized in that, described electro-conductive glass is the quartz glass that applies indium tin oxide layer.
8. fuel cell according to claim 1 is characterized in that fuel inlet is established in the bottom of the anode-side of described fuel cell, and fuel outlet is established at the top.
9. fuel cell according to claim 1 is characterized in that, described barrier film is an amberplex.
10. fuel cell according to claim 9 is characterized in that, described amberplex is that anion exchange is touched or proton exchange membrane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105749672A CN102064332B (en) | 2010-12-02 | 2010-12-02 | Solar direct alcohol fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105749672A CN102064332B (en) | 2010-12-02 | 2010-12-02 | Solar direct alcohol fuel cell |
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| CN102064332A true CN102064332A (en) | 2011-05-18 |
| CN102064332B CN102064332B (en) | 2013-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531822A (en) * | 2013-09-03 | 2014-01-22 | 吉林大学 | Solar fuel cell and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1099332A (en) * | 1978-09-21 | 1981-04-14 | Timothy A. Beck | Solar powered biological electric cell using mesophyll cells |
| CN101786793A (en) * | 2010-03-30 | 2010-07-28 | 上海交通大学 | Proton conducting glass material and hydro-thermal treatment preparation method thereof |
-
2010
- 2010-12-02 CN CN2010105749672A patent/CN102064332B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1099332A (en) * | 1978-09-21 | 1981-04-14 | Timothy A. Beck | Solar powered biological electric cell using mesophyll cells |
| CN101786793A (en) * | 2010-03-30 | 2010-07-28 | 上海交通大学 | Proton conducting glass material and hydro-thermal treatment preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531822A (en) * | 2013-09-03 | 2014-01-22 | 吉林大学 | Solar fuel cell and preparation method thereof |
| CN103531822B (en) * | 2013-09-03 | 2016-09-14 | 吉林大学 | Solar fuel cell and preparation method thereof |
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| CN102064332B (en) | 2013-04-24 |
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