CN112928314A - Preparation method of solid oxide fuel cell - Google Patents
Preparation method of solid oxide fuel cell Download PDFInfo
- Publication number
- CN112928314A CN112928314A CN202110092085.0A CN202110092085A CN112928314A CN 112928314 A CN112928314 A CN 112928314A CN 202110092085 A CN202110092085 A CN 202110092085A CN 112928314 A CN112928314 A CN 112928314A
- Authority
- CN
- China
- Prior art keywords
- cathode
- nitrate
- fuel cell
- anode
- solid oxide
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 40
- 239000007787 solid Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 15
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000003792 electrolyte Substances 0.000 claims description 20
- 150000002500 ions Chemical class 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 16
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007750 plasma spraying Methods 0.000 claims description 11
- 239000012153 distilled water Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 7
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002001 electrolyte material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical group [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 abstract description 11
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract 2
- 238000000151 deposition Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 31
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 8
- -1 compound nitrate Chemical class 0.000 description 7
- 230000010287 polarization Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 229910000420 cerium oxide Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 229910002505 Co0.8Fe0.2 Inorganic materials 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 2
- 229940075613 gadolinium oxide Drugs 0.000 description 2
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910002119 nickel–yttria stabilized zirconia Inorganic materials 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 229910001954 samarium oxide Inorganic materials 0.000 description 2
- 229940075630 samarium oxide Drugs 0.000 description 2
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910002738 Ba0.5Sr0.5Co0.8Fe0.2O3 Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910002127 La0.6Sr0.4Co0.2Fe0.8O3 Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical compound [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Abstract
The invention discloses a preparation method of a solid oxide fuel cell, which comprises the steps of mixing a composite nitrate solution and a pore-forming material, spraying and depositing to prepare a cathode coating with a nano structure, and removing the pore-forming material through low-temperature heat treatment to obtain a porous nano cathode of the solid oxide fuel cell. The invention directly deposits nitrate solution, saves the preparation process of cathode powder, has low sintering temperature and can keep the cathode nano structure.
Description
Technical Field
The invention belongs to the technical field of solid oxide fuel cells, and particularly relates to a preparation method of a solid oxide fuel cell.
Background
The phenomena of environmental pollution and energy shortage are more and more prominent, and energy conservation, emission reduction and energy utilization rate improvement are imminent. The solid oxide fuel cell is an all-solid-state green electrochemical power generation device which can directly convert chemical energy of fuel gas into electric energy based on electrode reaction without combustion. Firstly, the energy conversion efficiency is high, and under the combined heat and power supply, the energy conversion efficiency is as high as more than 80%; secondly, clean energy sources such as hydrogen and natural gas can be directly used as fuels, so that the environment is basically not polluted; in addition, the all-solid structure avoids the problems of corrosion, electrolyte loss and the like caused by liquid electrolyte. Based on the characteristics, the solid oxide fuel cell has a certain application prospect, is researched and developed, and has important economic value and social benefit.
The solid oxide fuel cell is typically a sandwich structure with the primary structure being the anode, electrolyte and cathode. According to the difference of the operation temperature, the fuel cell is divided into a high-temperature solid oxide fuel cell, a medium-temperature solid oxide fuel cell and a low-temperature solid oxide fuel cell. The high-temperature solid oxide fuel cell has the operating temperature of 800-1000 ℃, so the high operating temperature has higher requirements on equipment, and the application of the high-temperature solid oxide fuel cell is limited. At present, the medium and low temperature of the solid oxide fuel cell is an effective way for realizing the market application. With the development of electrolyte thinning, the ohmic resistance of the battery is greatly reduced, so that the polarization of the cathode, particularly the activation polarization of the cathode, restricts the improvement of the battery performance under the conditions of medium and low temperature. Therefore, how to improve the cathode activity and reduce the cathode polarization is an urgent problem to be solved to obtain a high-output performance medium-low temperature solid oxide fuel cell.
The factors affecting the polarization of cathode activation mainly include two aspects. On the one hand, the influence of the catalytic activity of the cathode material per se, and at present, the perovskite structure cathode material La0.6Sr0.4Co0.2Fe0.8O3(LSCF)、Ba0.5Sr0.5Co0.8Fe0.2O3(BSCF) has high catalytic activity at medium and low temperatures and is widely used in solid oxide fuel cellsThe method is widely applied. Another aspect is the effect of the length of the cathode reaction interface, i.e. the three-phase reaction interface of electrolyte/cathode/oxygen composition. The nano-structure cathode can effectively improve the length of three interfaces of the cathode, thereby improving the output performance of the battery. The traditional cathode preparation method usually needs subsequent high-temperature sintering, so that the structure of the nanometer cathode is damaged, and the length of a three-phase interface of the cathode is reduced. Therefore, if the nano-structure cathode coating can be directly obtained on the substrate without high-temperature sintering through the control of the cathode preparation method, the nano-structure cathode coating is an important way for reducing the activation polarization of the cathode of the medium-low temperature solid oxide fuel cell.
Disclosure of Invention
The invention aims to provide a preparation method of a solid oxide fuel cell, which directly obtains a cathode coating with a nano structure and reduces cathode polarization, thereby greatly improving the output performance of the solid oxide fuel cell.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing a solid oxide fuel cell, comprising the steps of:
firstly, adding composite nitrate into a solvent, then adding a pore-forming agent, dissolving and uniformly stirring to obtain a cathode mixed ion solution;
secondly, spraying the cathode mixed ion solution obtained in the first step on a half cell sheet supported by an anode by adopting a solution plasma spraying technology to form a cathode coating, and obtaining a single cell sheet blank with the cathode coating;
and thirdly, placing the single cell blank with the cathode coating obtained in the second step into an electric furnace, and firing for 2-3 hours at 700-900 ℃ to obtain the fuel cell.
Further, in the first step, the composite nitrate is a mixture of lanthanum nitrate, cobalt nitrate, strontium nitrate and ferric nitrate or a mixture of barium nitrate, cobalt nitrate, strontium nitrate and ferric nitrate.
Further, in the first step, the solvent is distilled water and/or ethanol.
Furthermore, in the first step, the molar concentration of the cathode mixed ion solution is 0.1 mol/L-1 mol/L.
Further, in the first step, the pore-forming agent is spherical graphite or carbon black.
Furthermore, in the first step, the particle size of the pore-forming agent is 50 nm-500 nm, and the dosage of the pore-forming agent is 10-20% of the weight of the composite nitrate.
Further, in the second step, the anode of the anode supporting half cell piece is a ceramic matrix obtained by mixing and sintering nickel oxide and an electrolyte material, and the electrolyte is one of YSZ, GDC or SDC.
Further, in the second step, the cathode coating layer formed on the anode-supporting half-cell sheet is 10 to 30 μm.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a preparation method of a solid oxide fuel cell, which directly sprays cathode composite ion solution on an anode supporting half cell by a solution plasma spraying method to prepare a nano porous cathode coating. The method does not need high-temperature sintering, can keep the nano structure of the cathode coating in the preparation process, and simultaneously saves the preparation process of cathode powder. Meanwhile, the sintering temperature is low, and the cathode nano structure can be reserved. The problems that the preparation of the nano cathode powder and the coating of the solid oxide fuel cell is complex, the combination of the cathode and the electrolyte is poor, the nano cathode powder and the coating are easy to fall off and the like are effectively solved, and the method has important significance for improving the output performance of the medium-low temperature solid oxide fuel cell.
Drawings
FIG. 1 is a flow chart of a cathode preparation process.
Detailed Description
The following are specific examples given by the inventor, and it should be noted that these examples are preferable examples of the present invention and are used for understanding the present invention by those skilled in the art, but the present invention is not limited to these examples.
Referring to fig. 1, a method for manufacturing a solid oxide fuel cell includes the steps of:
firstly, dissolving compound nitrate in liquid with a certain volume, adding a pore-forming agent, fully stirring and dissolving to obtain a cathode mixed ion solution with the molar concentration of 0.1-1 mol/L;
secondly, spraying the cathode mixed ion solution obtained in the first step on a half cell sheet supported by an anode by adopting a solution plasma spraying technology to obtain a cathode coating with the thickness of 10-30 mu m, and obtaining a single cell sheet blank with the cathode coating;
and thirdly, placing the single cell sheet blank with the cathode coating into an electric furnace, and firing for 2-3 hours at 700-900 ℃ to obtain the fuel cell cathode.
In the first step, the compound nitrate is lanthanum nitrate (La (NO)3)3) Cobalt nitrate (Co (NO)3)2) Strontium nitrate (Sr (NO))3)2) And iron nitrate (Fe (NO)3)3) Mixture of barium nitrate (Ba (NO3)2) and cobalt nitrate (Co (NO)3)2) Strontium nitrate (Sr (NO))3)2) And iron nitrate (Fe (NO)3)3) The mixture of (1).
In the first step, the liquid is one or two of distilled water or absolute ethyl alcohol.
In the first step, the pore-forming agent is spherical graphite or carbon black. The grain diameter of the pore-forming agent is 50 nm-500 nm, and the dosage of the pore-forming agent is 10-20% of the weight of the composite nitrate.
In the second step, the anode of the anode supporting half-cell plate is a ceramic matrix obtained by mixing and sintering nickel oxide and an electrolyte material, and the electrolyte is yttria-stabilized zirconia (YSZ), gadolinium oxide-doped ceria (GDC) or samarium oxide-doped ceria (SDC).
Example 1
A method of making a solid oxide fuel cell comprising the steps of:
s1 lanthanum cobaltate (La) co-doped with strontium oxide and iron oxide0.6Sr0.4Co0.2Fe0.8O3LSCF), in stoichiometric ratios (molar ratio 3: 2: 1: 4) weighing La (NO)3)3·6H2O，Sr(NO3)2，Co(NO3)2·6H2O and Fe (NO)3)3·9H2Dissolving O in distilled water to prepare an aqueous solution; adding spherical graphite pore-forming agent with the particle size of 50nm into the aqueous solution, wherein the mass of graphite is 10% of that of the composite nitrate, then carrying out ultrasonic stirring, and uniformly mixing to obtain cathode mixed ion solution with the metal ion concentration of 0.1 mol/L;
s2, adding the cathode mixed ion solution obtained in the step S1 into a solution plasma spraying system; an anode-supported half cell piece (the anode is a mixed anode of nickel oxide and yttria-stabilized zirconia, namely NiO-YSZ, and the electrolyte is yttria-stabilized zirconia, namely YSZ) is called as NiO-YSZ/YSZ hereinafter, the anode-supported half cell piece is placed in a mode that the electrolyte is arranged above and below the anode, and a cathode mixed ion solution is sprayed to one side surface of the NiO-YSZ/YSZ half cell YSZ electrolyte by a solution plasma spraying method to prepare an LSCF cathode coating with the thickness of 10 mu m, so that a single cell piece blank with the cathode coating is obtained;
and S3, placing the single cell sheet blank with the LSCF cathode coating into an electric furnace, and firing at 700 ℃ for 3 hours to obtain the fuel cell with the nano-structured porous LSCF cathode.
Example 2
A method of making a solid oxide fuel cell comprising the steps of:
s1 lanthanum cobaltate (La) co-doped with strontium oxide and iron oxide according to chemical formula0.6Sr0.4Co0.2Fe0.8O3LSCF), in stoichiometric ratios (molar ratio 3: 2.: 1: 4) weighing La (NO)3)3·6H2O，Sr(NO3)2，Co(NO3)2·6H2O and Fe (NO)3)3·9H2Dissolving O in distilled water to prepare an aqueous solution, and adding absolute ethyl alcohol with the same volume as the distilled water into the aqueous solution; then adding a spherical graphite pore-forming agent with the particle size of 200nm, wherein the mass of graphite is 15% of that of the composite nitrate, then carrying out ultrasonic stirring and uniformly mixing to obtain a cathode mixed ion solution with the metal ion concentration of 0.5 mol/L;
s2, adding the cathode mixed ion solution obtained in the step S1 into a solution plasma spraying system; an anode-supported half cell piece (the anode is a mixed anode of nickel oxide and yttria-stabilized zirconia, namely NiO-YSZ, and the electrolyte is yttria-stabilized zirconia, namely YSZ) is called as NiO-YSZ/YSZ hereinafter, the NiO-YSZ/YSZ is placed in a mode that the electrolyte is arranged above and the anode is arranged below, and a cathode mixed ion solution is sprayed on the surface of one side of the electrolyte of the NiO-YSZ/YSZ half cell to prepare an LSCF cathode coating with the thickness of 20 mu m by a solution plasma spraying method, so that a single cell piece blank with the cathode coating is obtained;
and S3, placing the single cell sheet blank with the LSCF cathode coating into an electric furnace, firing at 800 ℃ for 2.5 hours, and removing graphite to obtain the fuel cell with the nano-structure porous LSCF cathode.
Example 3
A method of making a solid oxide fuel cell comprising the steps of:
s1, strontium oxide and ferric oxide co-doped barium cobaltate (Ba)0.5Sr0.5Co0.8Fe0.2O3BSCF), in stoichiometric ratios (molar ratio 5: 5.: 8: 2) weighing Ba (NO)3)2，Sr(NO3)2，Co(NO3)2·6H2O and Fe (NO)3)3·9H2Dissolving O in distilled water to prepare a water solution, and adding absolute ethyl alcohol with the same volume as the distilled water; then adding a carbon black pore-forming agent with the particle size of 500nm, wherein the mass of graphite is 20% of that of the composite nitrate, ultrasonically stirring the solution, and uniformly mixing to obtain a cathode mixed ion solution with the metal ion concentration of 1 mol/L;
s2, adding the cathode mixed ion solution obtained in the step S1 into a solution plasma spraying system; placing an anode supporting half-cell piece (the anode is a mixed anode of nickel oxide and gadolinium oxide doped cerium oxide, namely NiO-GDC, and the electrolyte is gadolinium oxide doped cerium oxide, namely GDC) in a mode that the anode supporting half-cell piece is NiO-GDC/GDC, and the NiO-GDC/GDC is arranged above the electrolyte and below the anode, and spraying solution plasma on the surface of one side of the NiO-GDC/GDC half-cell electrolyte to prepare a BSCF cathode coating with the thickness of 30 mu m to obtain a single cell piece blank with a cathode coating;
and S3, placing the single cell sheet blank sheet with the BSCF cathode coating into an electric furnace, firing at 900 ℃ for 2 hours, and removing graphite to obtain the fuel cell with the nano-structure porous BSCF cathode.
Example 4
A method of making a solid oxide fuel cell comprising the steps of:
s1, strontium oxide and ferric oxide co-doped barium cobaltate (Ba)0.5Sr0.5Co0.8Fe0.2O3BSCF), in stoichiometric ratios (molar ratio 5: 5: 8: 2) weighing Ba (NO)3)2，Sr(NO3)2，Co(NO3)2·6H2O and Fe (NO)3)3·9H2Dissolving O in distilled water to prepare a water solution, and adding absolute ethyl alcohol with the same volume as the distilled water; then adding a carbon black pore-forming agent with the particle size of 300nm, wherein the mass of graphite is 18% of that of the composite nitrate, ultrasonically stirring the solution, and uniformly mixing to obtain a cathode mixed ion solution with the metal ion concentration of 0.8 mol/L;
s2, adding the cathode mixed ion solution obtained in the step S1 into a solution plasma spraying system; placing an anode supporting half-cell (the anode is a mixed anode of nickel oxide and samarium oxide doped cerium oxide, namely NiO-SDC, and the electrolyte is samarium oxide doped cerium oxide, namely SDC), wherein the anode supporting half-cell is NiO-SDC/SDC, and the NiO-SDC/SDC is placed in a mode that the electrolyte is arranged above and below the anode, and preparing a BSCF cathode coating with the thickness of 25 mu m on one side surface of the NiO-SDC/SDC half-cell electrolyte through solution plasma spraying to obtain a single-cell blank with the cathode coating;
and S3, placing the single cell sheet blank with the BSCF cathode coating into an electric furnace, firing at 850 ℃ for 2.5 hours, and removing graphite to obtain the fuel cell with the nano-structure porous BSCF cathode.
Claims (8)
1. A method for preparing a solid oxide fuel cell, comprising the steps of:
firstly, adding composite nitrate into a solvent, then adding a pore-forming agent, dissolving and uniformly stirring to obtain a cathode mixed ion solution;
secondly, spraying the cathode mixed ion solution obtained in the first step on a half cell sheet supported by an anode by adopting a solution plasma spraying technology to form a cathode coating, and obtaining a single cell sheet blank with the cathode coating;
and thirdly, placing the single cell blank with the cathode coating obtained in the second step into an electric furnace, and firing for 2-3 hours at 700-900 ℃ to obtain the fuel cell.
2. The method of claim 1, wherein in the first step, the complex nitrate is lanthanum nitrate, cobalt nitrate, a mixture of strontium nitrate and ferric nitrate, or a mixture of barium nitrate, cobalt nitrate, strontium nitrate and ferric nitrate.
3. The method of claim 1, wherein in the first step, the solvent is distilled water and/or ethanol.
4. The method according to claim 1, wherein the molar concentration of the cathode mixed ion solution in the first step is 0.1mol/L to 1 mol/L.
5. The method of claim 1, wherein in the first step, the pore-forming agent is spherical graphite or carbon black.
6. The method for preparing the solid oxide fuel cell as claimed in claim 1, wherein in the first step, the pore-forming agent has a particle size of 50nm to 500nm, and the amount of the pore-forming agent is 10 to 20% of the weight of the composite nitrate.
7. The method of claim 1, wherein in the second step, the anode of the anode-supporting half-cell is a ceramic matrix obtained by sintering nickel oxide mixed with an electrolyte material, and the electrolyte is one of YSZ, GDC or SDC.
8. The method of claim 1, wherein the cathode coating layer formed on the anode-supporting half-cell sheet in the second step is 10 μm to 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092085.0A CN112928314A (en) | 2021-01-23 | 2021-01-23 | Preparation method of solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092085.0A CN112928314A (en) | 2021-01-23 | 2021-01-23 | Preparation method of solid oxide fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112928314A true CN112928314A (en) | 2021-06-08 |
Family
ID=76165459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110092085.0A Pending CN112928314A (en) | 2021-01-23 | 2021-01-23 | Preparation method of solid oxide fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112928314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040735A1 (en) * | 2022-08-23 | 2024-02-29 | 江苏科技大学 | Solid oxide fuel cell cathode material, and preparation method therefor and use thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438722A (en) * | 2003-03-21 | 2003-08-27 | 西安交通大学 | Method for making tubelike high-temp. solid oxide fuel battery |
| CN101183716A (en) * | 2007-12-07 | 2008-05-21 | 华中科技大学 | Method of producing three-in-one electrode of solid oxide fuel battery |
| CN101271981A (en) * | 2007-03-23 | 2008-09-24 | 中国科学院大连化学物理研究所 | Low temperature solid-oxide fuel battery three-in-one component MEA and preparation thereof |
| CN101304092A (en) * | 2007-05-11 | 2008-11-12 | 中国科学院大连化学物理研究所 | Cathode material of mid-temperature solid-oxide fuel battery and uses thereof |
| CN101599546A (en) * | 2008-06-06 | 2009-12-09 | 中国科学院大连化学物理研究所 | A kind of cathode material for solid-oxide fuel cell and application |
| CN102104153A (en) * | 2011-01-07 | 2011-06-22 | 上海交通大学 | Preparation method of cathode of low-medium temperature solid oxide fuel cell |
| CN103872367A (en) * | 2012-12-13 | 2014-06-18 | 中国科学院大连化学物理研究所 | Zirconia based electrolyte film of solid oxide fuel cell |
| CN104064782A (en) * | 2014-06-21 | 2014-09-24 | 景德镇陶瓷学院 | Preparation method for solid oxide fuel cell cathode |
| CN106450396A (en) * | 2016-11-15 | 2017-02-22 | 东莞市联洲知识产权运营管理有限公司 | Preparation method of tubular high-temperature solid oxide fuel cells |
| CN110396659A (en) * | 2019-08-30 | 2019-11-01 | 西安交通大学 | A kind of porous material and coating production |
-
2021
- 2021-01-23 CN CN202110092085.0A patent/CN112928314A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438722A (en) * | 2003-03-21 | 2003-08-27 | 西安交通大学 | Method for making tubelike high-temp. solid oxide fuel battery |
| CN101271981A (en) * | 2007-03-23 | 2008-09-24 | 中国科学院大连化学物理研究所 | Low temperature solid-oxide fuel battery three-in-one component MEA and preparation thereof |
| CN101304092A (en) * | 2007-05-11 | 2008-11-12 | 中国科学院大连化学物理研究所 | Cathode material of mid-temperature solid-oxide fuel battery and uses thereof |
| CN101183716A (en) * | 2007-12-07 | 2008-05-21 | 华中科技大学 | Method of producing three-in-one electrode of solid oxide fuel battery |
| CN101599546A (en) * | 2008-06-06 | 2009-12-09 | 中国科学院大连化学物理研究所 | A kind of cathode material for solid-oxide fuel cell and application |
| CN102104153A (en) * | 2011-01-07 | 2011-06-22 | 上海交通大学 | Preparation method of cathode of low-medium temperature solid oxide fuel cell |
| CN103872367A (en) * | 2012-12-13 | 2014-06-18 | 中国科学院大连化学物理研究所 | Zirconia based electrolyte film of solid oxide fuel cell |
| CN104064782A (en) * | 2014-06-21 | 2014-09-24 | 景德镇陶瓷学院 | Preparation method for solid oxide fuel cell cathode |
| CN106450396A (en) * | 2016-11-15 | 2017-02-22 | 东莞市联洲知识产权运营管理有限公司 | Preparation method of tubular high-temperature solid oxide fuel cells |
| CN110396659A (en) * | 2019-08-30 | 2019-11-01 | 西安交通大学 | A kind of porous material and coating production |
Non-Patent Citations (1)
| Title |
|---|
| 程支庚, 上海科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040735A1 (en) * | 2022-08-23 | 2024-02-29 | 江苏科技大学 | Solid oxide fuel cell cathode material, and preparation method therefor and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zakaria et al. | A review of solid oxide fuel cell component fabrication methods toward lowering temperature | |
| CN111477881B (en) | NiFe alloy nanoparticle coated Pr0.8Sr1.2(FeNi)O4-δMaterial and method for producing the same | |
| CN101304092B (en) | Cathode material of mid-temperature solid-oxide fuel battery and uses thereof | |
| CN101599546A (en) | A kind of cathode material for solid-oxide fuel cell and application | |
| CN111244470B (en) | Nano composite cathode and preparation and application thereof | |
| CN111430734B (en) | (Pr0.5Sr0.5)xFe1-yRuyO3-δPerovskite material and preparation method and application thereof | |
| CN101964422A (en) | Perovskite type solid oxide fuel cell anode material | |
| CN101662033A (en) | Solid oxide fuel cell and preparation method thereof | |
| CN113745540B (en) | Anode reforming layer of direct alcohol fuel cell and preparation method and application thereof | |
| CN113839054B (en) | Reversible proton ceramic battery electrode material and preparation method and application thereof | |
| CN100595952C (en) | High-temperature fuel cell system with anode loaded with functional coating and taking methane as main fuel | |
| CN108091885B (en) | High-temperature fuel cell cathode and application thereof | |
| CN111883789A (en) | Electrode material of solid oxide fuel cell and preparation method and application thereof | |
| CN114420943A (en) | Heterogeneous interface composite electrode material and preparation method and application thereof | |
| CN105130426B (en) | Stable SOFC perovskite anode materials of a kind of high temeperature chemistry and preparation method thereof | |
| CN109841840A (en) | A kind of high-temperature electrolysis pond hybrid fuel electrode and preparation method thereof | |
| CN112928314A (en) | Preparation method of solid oxide fuel cell | |
| CN116082028B (en) | Proton ceramic fuel cell anode material, preparation method and application thereof in direct ammonia fuel cell | |
| TIAN et al. | Performance of reversible solid oxide cells based on La0. 6Ca0. 4Fe0. 7Sc0. 1Ni0. 2O3–δ oxygen electrode | |
| CN103236550B (en) | Graphene-modified nickel-base composite anode material of solid oxide fuel cell and preparation method thereof | |
| CN115133042A (en) | High-activity anti-carbon deposition solid oxide fuel cell anode catalyst | |
| CN110729492A (en) | Co-synthesis method of high-performance nano-structure cobalt-containing composite cathode material | |
| TWI783307B (en) | Preparation method of metal-supported microtubular solid oxide fuel cell | |
| Gao et al. | Development and Application of Green Hydrogen Energy Production Technology | |
| CN116544423A (en) | Preparation method of lanthanum oxide doped cerium oxide of solid oxide fuel cell barrier layer |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |
|
| RJ01 | Rejection of invention patent application after publication |