CN109888303B - Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material - Google Patents

Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material Download PDF

Info

Publication number
CN109888303B
CN109888303B CN201910159682.3A CN201910159682A CN109888303B CN 109888303 B CN109888303 B CN 109888303B CN 201910159682 A CN201910159682 A CN 201910159682A CN 109888303 B CN109888303 B CN 109888303B
Authority
CN
China
Prior art keywords
anode
fuel cell
anode material
battery
salt
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.)
Active
Application number
CN201910159682.3A
Other languages
Chinese (zh)
Other versions
CN109888303A (en
Inventor
孙克宁
乔金硕
马敏剑
王振华
孙旺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Technology BIT
Original Assignee
Beijing Institute of Technology BIT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN201910159682.3A priority Critical patent/CN109888303B/en
Publication of CN109888303A publication Critical patent/CN109888303A/en
Application granted granted Critical
Publication of CN109888303B publication Critical patent/CN109888303B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

  • Inert Electrodes (AREA)

Abstract

The invention relates to a method for improving the catalytic performance of an anode material of a direct carbon fuel cell with high catalytic activity, in particular to a method for improving the catalytic performance of an anode material of a direct carbon fuel cell with high catalytic activityA direct carbon fuel cell anode material with stability and catalytic activity and an anode morphology improvement method thereof are used for realizing the high output performance of a direct carbon fuel cell, and belong to the technical field of clean energy. New material synthesized by the invention (PrBa)0.95Fe2‑x‑ yCuxNbyO5+(PBFCN) is used as an anode material of the mixed type direct carbon solid oxide fuel cell, wherein the x value of the Cu content is 0.1-0.4, and the y value of the Nb content is 0.1-0.4. The anode morphology of the battery is regulated and controlled by a water drop template method, the catalytic performance is improved, the output performance of the battery is greatly improved, and the maximum output power of the single battery with the improved anode morphology can reach 790mW/cm at the working temperature of 800 DEG C2The performance is improved by nearly 60 percent.

Description

Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material
Technical Field
The invention relates to a method for improving the catalytic performance of an anode material of a direct carbon fuel cell with high catalytic activity, in particular to a direct carbon fuel cell anode material with high stability and catalytic activity and an anode morphology improvement method thereof, which are used for realizing the high output performance of the direct carbon fuel cell and belong to the technical field of clean energy.
Background
The rapid development of world economy leads to the continuous increase of energy demand, the demand of China as the country of the current high-speed development is also increasing day by day, and the traditional energy utilization mode of China, such as thermal power generation of coal, does not continuously pollute the environment and cannot meet the current higher and higher energy demand, so the demand of the high-efficiency and clean energy utilization mode is more and more urgent. The Solid Oxide Direct Carbon Fuel Cell (SO-DCFC) is considered to be a new technology with great potential to replace the traditional coal Fuel fire utilization mode due to the advantages of wide raw material source, high power generation efficiency, small operation pollution, high safety and the like of the Carbon Fuel.
The solid oxide direct carbon fuel cell still has great difficulty in commercialization at present, and because the solid oxide direct carbon fuel cell adopts an all-solid structure, the main problem limiting the development of the solid oxide direct carbon fuel cell is that the solid carbon has large particles, the size of the solid carbon is far larger than that of gas molecules, so that the contact sites of fuel with an anode and an electrolyte are few, the number of active sites of electrochemical reaction is very limited, and the output power of the direct carbon fuel cell is generally low. In the existing solution, a molten Sb anode is used to increase the contact area between the anode and the solid carbon and increase the reactive region to improve the battery performance, but the molten Sb has strong corrosion and poor chemical stability, and a direct carbon fuel cell using Sb as the anode has low open-circuit voltage and poor constant current output stability. However, other methods for improving the anode morphology, such as an electrostatic spinning method and an immersion method, although the anode morphology of the battery is optimized to some extent and the output performance of the battery is improved, the method is still limited by the particle size of the used solid carbon fuel, and the anode surface morphology cannot be effectively regulated and controlled to match to realize the optimal output performance.
The existing invention patents (publication numbers CN 107539142 a and CN 103972526B) propose that a liquid metal anode is used to solve the problem of insufficient contact between the solid carbon fuel and the solid anode, but the open-circuit voltage of the liquid metal anode is relatively low, which results in low output power of the battery, poor long-term stability, and possible corrosion to the electrolyte to destroy the battery structure, so that a method capable of effectively improving the morphology of the solid oxide direct carbon fuel battery anode to improve the output performance is still lacking at present.
Disclosure of Invention
The invention aims to provide a method for improving the catalytic performance of an anode material of a direct carbon fuel cell with high catalytic activity, aiming at the problems that the catalytic activity of an anode on solid carbon in a direct carbon fuel cell with solid oxide is poor, the particle size of solid carbon fuel particles is large, so that the contact sites of fuel with the anode and electrolyte are few, the number of active sites of electrochemical reaction is very limited, and the output power of the direct carbon fuel cell is generally low.
The purpose of the invention is realized by the following technical scheme.
A method for improving the catalytic performance of a high-catalytic-activity direct carbon fuel cell anode material comprises the following specific steps:
(1) and (3) preparing the liquid phase carrier of a water drop template method.
Dissolving a styrene-isoprene-styrene triblock copolymer in chloroform to prepare a solution with the concentration of 10-40 mg/ml, and sealing the solution in a dark place to fully expand molecular chains of the copolymer.
(2) Adding a PBFCN anode material into the solution obtained in the step (1), and uniformly mixing, wherein the addition amount of the PBFCN anode material is 0.2-0.5 g/ml, so as to obtain electrode slurry;
(3) dropwise adding the electrode slurry prepared in the step (2) into LSGM (La)0.9Sr0.1Ga0.8Mg0.2O3-) And drying and sintering the electrolyte to obtain the direct carbon fuel cell anode with improved appearance.
Preparing a direct carbon fuel SOFC by using PBFCN as an anode material: with La0.9Sr0.1Ga0.8Mg0.2O3-Taking PBFCN as an anode material as an electrolyte, preparing the anode of the battery by a morphology improvement method, and taking commercialized La0.6Sr0.4Co0.2Fe0.8O3(LSCF) is used as a cathode material, a cathode of the direct carbon fuel cell is prepared in a screen printing mode, a single cell is prepared after sintering, a mixture of activated carbon and carbonate is used as a fuel, and 10ml/min carrier gas is introduced to the anode side; the mass ratio of the activated carbon to the carbonate is 1-4: 1; the carbonate is one or a mixture of lithium carbonate, potassium carbonate and sodium carbonate.
The carrier gas is N2、Ar、He、CO2Or water vapor.
The PBFCN anode material has a specific molecular formula of (PrBa)0.95Fe2-x-yCuxNbyO5+The value of the Cu content x is 0.1-0.4, and the value of the Nb content y is 0.1-0.4.
The thickness of any one or two of a cathode layer and an anode layer of the direct carbon fuel cell is 10-30 micrometers;
the preparation method of the PBFCN anode material comprises the following steps: electrostatic spinning, solid phase, combustion, sol-gel, hydrothermal or solvothermal methods.
The synthesis method of the PBFCN anode is a sol-gel method, and comprises the following specific steps: adding metal salt and citric acid into water, and uniformly mixing; heating and stirring the mixture in water bath at 60-90 ℃ to a gel state, drying the mixture at 150-250 ℃ to obtain a precursor, and roasting the precursor at 950-1100 ℃ for 6 hours in an air atmosphere to obtain the PBFCN anode material;
the molar ratio of the citric acid to the metal ions of the metal salt is 1.5-2: 1; the metal salt comprises praseodymium salt, barium salt, iron salt, copper salt and niobium salt, wherein the molar ratio of metal ions is 0.95:0.95: 1.2-1.8: 0.1-0.4.
The praseodymium salt comprises praseodymium nitrate, praseodymium acetate and praseodymium oxalate.
The barium salt comprises barium nitrate, barium acetate and barium oxalate.
The iron salt comprises ferric nitrate and ferric oxalate.
The copper salt includes copper nitrate, copper acetate and copper oxalate.
The niobium salt is niobium oxalate.
Advantageous effects
1. The invention discloses a SO-DCFC anode material (PrBa) with high stability and catalytic activity0.95Fe2-x-yCuxNbyO5+(PBFCN) to obtain a perovskite-type material having a stable layered structure in a reducing atmosphere with a carbonate. Through Cu doping regulation and control, the adsorption and catalytic oxidation activities of the material on CO in the anode chamber are improved, the output performance of the battery is improved, and the maximum output power can reach 500mW/cm at the working temperature of 800 DEG C2And can stably work for more than 20 h.
2. The water drop template method is applied to improve the anode morphology of the direct carbon fuel cell, SO-DCFC anodes with different pore channel morphologies are prepared by regulating temperature and humidity, and the SO-DCFC anodes are regulatedThe surface pore channels of the anode matched with the grain diameter of the solid carbon fuel are controlled to effectively increase the active sites of the chemical reaction and improve the activity of the electrochemical reaction, thereby greatly improving the output power of the direct carbon fuel cell. Compared with the battery prepared by the traditional screen printing method, the single battery adopting the water drop template method to prepare the anode has the advantages that the output power of the battery is obviously improved, and the maximum output power of the battery at 800 ℃ can reach 790mW/cm2The performance is improved by nearly 60 percent.
Drawings
FIG. 1 is an XRD pattern of a PBFCN anode material with high stability and catalytic activity;
FIG. 2 is a TEM image of a PBFCN anode material with high stability and catalytic activity;
FIG. 3 is a CO-TPD diagram of the synthetic material of example 1;
FIG. 4 is the anode surface topography of the cell prepared in example 1;
fig. 5 is a discharge graph of the battery prepared in example 1;
fig. 6 is a discharge curve of the battery prepared in example 2;
fig. 7 is a discharge curve of the battery prepared in example 3;
FIG. 8 is the anode surface topography of the cell prepared in example 3;
fig. 9 is a discharge curve of the battery prepared in example 4;
fig. 10 is the anode surface topography of the cell prepared in example 4.
Detailed Description
Example 1
A direct carbon fuel SOFC anode material with high stability and catalytic activity has a specific molecular formula of (PrBa)0.95Fe1.4Cu0.4Nb0.2O5+。
The preparation method of the material comprises the following steps:
4.1326g of praseodymium nitrate hexahydrate, 2.4827g of barium nitrate, 5.656g of ferric nitrate nonahydrate, 0.9664g of copper nitrate trihydrate and 1.0761g of niobium oxalate are taken and put into 500ml of deionized water, 16.3909g of citric acid is added, water bath heating and stirring are carried out at 80 ℃ until reddish brown transparent gel is formed,drying at 250 deg.C to obtain brown precursor, grinding the precursor, and calcining at 950 deg.C in air atmosphere for 6h to obtain (PrBa) with perovskite phase structure0.95Fe1.4Cu0.4Nb0.2O5+XRD analysis of the anode material shows that the prepared oxide corresponds to a standard peak of perovskite, the prepared anode material is mixed with activated carbon, and after the anode material is kept warm for 10 hours at 800 ℃ in an argon atmosphere, XRD analysis shows that the material keeps stable in a phase structure, as shown in figure 1, and TEM photographs also show that the material has a layered perovskite structure, as shown in figure 2.
And performing CO-TPD test on the synthesized anode material, wherein the specific method comprises the following steps: weighing 150mg of synthesized powder, grinding uniformly, presintering at 300 ℃ for 30min under the helium atmosphere, cooling to room temperature, introducing 10% CO/Ar, switching to the helium atmosphere after two hours of adsorption process, raising the temperature to 1000 ℃ by an adsorption instrument program, and recording a CO desorption curve, wherein as shown in figure 3, the desorption peak at 800-.
The anode of the direct carbon fuel cell is prepared by taking the synthesized material as an anode material through a water drop template method, and the specific method comprises the following steps: (1) weighing 35mg of styrene-isoprene-styrene triblock copolymer, adding the styrene-isoprene-styrene triblock copolymer into a sample bottle containing 1ml of chloroform solution, sealing, and storing in the shade for 72 hours to ensure that the copolymer is completely dissolved and molecular chains are fully unfolded; (2) weighing 0.25g of prepared anode material, mixing the anode material into the solution obtained in the step (1), and performing ultrasonic treatment for 10min to obtain uniformly dispersed anode slurry; (3) weighing 20 microliter of the anode slurry obtained in the step (2) by using a pipette, and adding the anode slurry to La0.9Sr0.1Ga0.8Mg0.2O3-And (LSGM) electrolyte is transferred to a constant temperature and humidity box with the temperature of 50 ℃ and the relative humidity of 60 percent, and the mixture is dried for 10min to completely evaporate chloroform, so as to obtain the anode layer of the direct carbon fuel cell. Brushing La on the other side of the electrolyte by adopting a screen printing method0.6Sr0.4Co0.2Fe0.8O3(LSCF) is used as a cathode, the temperature is sequentially increased to 1100 ℃ in the air for sintering for 2 hours to prepare a single cell, and the pore diameter of the surface of the anode prepared by a water drop template method after sintering is about 35 to 50 mu m, and the thickness is 25 mu mm, mixing 400-mesh active carbon (with an average particle size of 37 mu m) and carbonate (the molar ratio of lithium carbonate to potassium carbonate is 62:38) in a mass ratio of 4:1 in an anode chamber, using 10ml/min of Ar gas as a carrier gas and static air as an oxidant, wherein the working temperature of the battery is 800 ℃, and the maximum output power density of the battery is 787mW/cm2Compared with the maximum output power improved by 60% before the morphology is improved, the SEM image of the anode morphology is shown in figure 4, and the output power of the battery is shown in figure 5.
Example 2
A direct carbon fuel SOFC anode material with high stability and catalytic activity has a specific molecular formula of (PrBa)0.95Fe1.7Cu0.1Nb0.2O5+。
The preparation method adopts a solid phase method, and comprises the following specific steps:
1.6173g of praseodymium oxide (Pr) are weighed6O11) 1.8747g of barium carbonate, 1.36g of ferric oxide, 0.0795g of copper oxide and 0.2658g of niobium pentoxide are put into a ball mill to be ball-milled for 24 hours at the speed of 400 r/s, and the ball-milled powder is roasted for 10 hours at 1100 ℃ in the air atmosphere to obtain the powder (PrBa) with the perovskite phase structure0.95Fe1.7Cu0.1Nb0.2O5+An anode material.
The prepared material is taken as an anode material, and La is taken as0.6Sr0.4Co0.2Fe0.8O3(LSCF) as cathode material, La0.9Sr0.1Ga0.8Mg0.2O3-(LSGM) was screen-printed as an electrolyte on both sides of the electrolyte, each side was brushed twice, and after firing in air, a single cell was obtained, the thickness of the electrode layer was 30 μm, and the ratio of 400 mesh activated carbon (average particle size 37 μm) to carbonate (molar ratio of lithium carbonate to potassium carbonate was 62:38) was adjusted to 4:1 is mixed in an anode chamber, 10ml/min Ar gas is used as carrier gas, static air is used as oxidant, and the maximum output power of the battery is 278mW/cm at the working temperature of 800 DEG C2As shown in fig. 6.
Example 3
Direct carbon fuel SOFC anode with high stability and catalytic activityThe material has a specific molecular formula of (PrBa)0.95Fe1.5Cu0.3Nb0.2O5+。
The preparation method of the material comprises the following steps:
4.1326g of praseodymium nitrate hexahydrate, 2.4827g of barium nitrate, 6.06g of ferric nitrate nonahydrate, 0.7248g of copper nitrate trihydrate and 1.0761g of niobium oxalate are taken to be added into 500ml of deionized water, 16.3909g of citric acid is added, the mixture is heated and stirred in a water bath at 80 ℃ until reddish brown transparent gel is formed, the mixture is dried at 250 ℃ to obtain brown precursors, and the precursors are ground and then are roasted at 1000 ℃ for 6 hours in the air atmosphere to obtain (PrBa) with the perovskite phase structure0.95Fe1.5Cu0.3Nb0.2O5+An anode material.
The anode of the direct carbon fuel cell is prepared by taking the synthesized material as an anode material through a water drop template method, and the specific method comprises the following steps: (1) weighing 30mg of styrene-isoprene-styrene triblock copolymer, adding the styrene-isoprene-styrene triblock copolymer into a sample bottle containing 1ml of chloroform solution, sealing, and storing in the shade for 72 hours to ensure that the copolymer is completely dissolved and molecular chains are fully unfolded; (2) weighing 0.2g of prepared anode material, mixing the anode material into the solution obtained in the step (1), and performing ultrasonic treatment for 10min to obtain uniformly dispersed anode slurry; (3) weighing 20 microliter of the anode slurry obtained in the step (2) by using a pipette, and adding the anode slurry to La0.9Sr0.1Ga0.8Mg0.2O3-And (LSGM) electrolyte is transferred to a constant temperature and humidity box with the temperature of 35 ℃ and the relative humidity of 80 percent, and the mixture is dried for 10min to completely evaporate chloroform, so as to obtain the anode layer of the direct carbon fuel cell. Brushing La on the other side of the electrolyte by adopting a screen printing method0.6Sr0.4Co0.2Fe0.8O3(LSCF) is used as a cathode, the temperature is sequentially increased to 1100 ℃ in the air for sintering for 2 hours to prepare a single cell, the pore size of the surface of the anode prepared by a water drop template method after sintering is about 20-35 mu m, the thickness is 25 mu m, 400-mesh active carbon (the average particle size is 37 mu m) and carbonate (the molar ratio of lithium carbonate to potassium carbonate is 62:38) are mixed in an anode chamber according to the mass ratio of 4:1, 10ml/min Ar gas is used as a carrier gas, static air is used as an oxidant, the working temperature of the cell is 800 ℃, and the maximum output power density of the cell is 511mW/cm2Compared withThe maximum output power is improved by 35.5 percent before the morphology is improved, the output power of the cell is shown in figure 7, and an SEM image of the anode morphology of a single cell is shown in figure 8.
Example 4
A direct carbon fuel SOFC anode material with high stability and catalytic activity has a specific molecular formula of (PrBa)0.95Fe1.6Cu0.2Nb0.2O5+。
The preparation method comprises the following steps:
4.1326g of praseodymium nitrate hexahydrate, 2.4827g of barium nitrate, 6.464g of ferric nitrate nonahydrate, 0.4832g of copper nitrate trihydrate and 1.0761g of niobium oxalate are put into 500ml of deionized water, 16.3909g of citric acid is added, the mixture is heated and stirred in a water bath at 80 ℃ until reddish brown transparent gel is formed, the mixture is dried at 250 ℃ to obtain brown precursors, and the precursors are ground and then roasted at 1000 ℃ for 6 hours in the air atmosphere to obtain the titanium-titanium composite material (PrBa)0.95Fe1.6Cu0.2Nb0.2O5+An anode material.
The anode of the direct carbon fuel cell is prepared by taking the synthesized material as an anode material through a water drop template method, and the specific method comprises the following steps: (1) weighing 36mg of styrene-isoprene-styrene triblock copolymer, adding the styrene-isoprene-styrene triblock copolymer into a sample bottle containing 1ml of chloroform solution, sealing, and storing in the shade for 72 hours to ensure that the copolymer is completely dissolved and molecular chains are fully unfolded; (2) weighing 0.25g of prepared anode material, mixing the anode material into the solution obtained in the step (1), and performing ultrasonic treatment for 10min to obtain uniformly dispersed anode slurry; (3) weighing 20 microliter of the anode slurry obtained in the step (2) by using a pipette, and adding the anode slurry to La0.9Sr0.1Ga0.8Mg0.2O3-And (LSGM) electrolyte is transferred to a constant temperature and humidity box with the temperature of 35 ℃ and the relative humidity of 60 percent, and the mixture is dried for 10min to completely evaporate chloroform, so as to obtain the anode layer of the direct carbon fuel cell. Brushing La on the other side of the electrolyte by adopting a screen printing method0.6Sr0.4Co0.2Fe0.8O3(LSCF) is used as a cathode, the temperature is sequentially increased to 1100 ℃ in the air for sintering for 2 hours to prepare a single cell, the pore diameter of the surface of the anode prepared by a water drop template method after sintering is about 5-20 mu m, the thickness is 25 mu m, and the powder is prepared by sieving 400 meshesMixing carbon (with an average particle size of 37 μm) and carbonate (the molar ratio of lithium carbonate to potassium carbonate is 62:38) at a mass ratio of 4:1, and placing the mixture in an anode chamber, wherein 10ml/min of Ar gas is used as a carrier gas, static air is used as an oxidant, the working temperature of the battery is 800 ℃, and the maximum output power density of the battery is 433mW/cm2Compared with the maximum output power which is improved by 38.3 percent before the morphology is improved, the output power of the battery is shown in the attached figure 9, and the SEM image of the anode morphology of the single cell is shown in the attached figure 10.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A preparation method of a high catalytic activity direct carbon fuel cell anode is characterized by comprising the following steps: the method comprises the following specific steps:
(1) preparing a liquid phase carrier by a water drop template method;
dissolving a styrene-isoprene-styrene triblock copolymer in chloroform to prepare a solution with the concentration of 10-40 mg/ml, and sealing the solution in a dark place to fully expand molecular chains of the copolymer;
(2) adding a PBFCN anode material into the solution obtained in the step (1), and uniformly mixing, wherein the addition amount of the PBFCN anode material is 0.2-0.5 g/ml, so as to obtain electrode slurry;
(3) dripping the electrode slurry prepared in the step (2) into La0.9Sr0.1Ga0.8Mg0.2O3-Drying and sintering the electrolyte to obtain the direct carbon fuel cell anode with improved appearance;
the PBFCN anode material has a specific molecular formula of (PrBa)0.95Fe2-x-yCuxNbyO5+The value of the Cu content x is 0.1-0.4, and the value of the Nb content y is 0.1-0.4.
2. A direct carbon fuel cell assembled using an anode prepared by the method of claim 1, wherein: with commercialized La0.6Sr0.4Co0.2Fe0.8O3Preparing a cathode as a cathode material by a screen printing mode, preparing a single battery after sintering, taking a mixture of activated carbon and carbonate as a fuel, and introducing 10ml/min carrier gas to the anode side; the mass ratio of the activated carbon to the carbonate is 1-4: 1.
3. The battery of claim 2, wherein: the carbonate is one or a mixture of lithium carbonate, potassium carbonate and sodium carbonate; the carrier gas is N2、Ar、He、CO2Or water vapor.
4. The battery of claim 2, wherein: the thickness of either one or both of the cathode layer and the anode layer of the direct carbon fuel cell is 10-30 μm.
5. The battery of claim 2, wherein: the preparation method of the PBFCN anode material comprises the following steps: electrostatic spinning, solid phase, combustion, sol-gel, hydrothermal or solvothermal methods.
6. The battery of claim 5, wherein: the method for preparing the PBFCN anode material by adopting a sol-gel method comprises the following specific steps: adding metal salt and citric acid into water, and uniformly mixing; heating and stirring the mixture in water bath at 60-90 ℃ to a gel state, drying the mixture at 150-250 ℃ to obtain a precursor, and roasting the precursor at 950-1100 ℃ for 6 hours in an air atmosphere to obtain the PBFCN anode material, wherein the molar ratio of citric acid to metal ions of metal salt is 1.5-2: 1.
7. the battery of claim 6, wherein: the metal salt is praseodymium salt, barium salt, ferric salt, copper salt and niobium salt, wherein the molar ratio of praseodymium, barium, iron, copper and niobium metal ions is 0.95:0.95: 1.2-1.8: 0.1-0.4.
8. The battery of claim 7, wherein: the praseodymium salt comprises praseodymium nitrate, praseodymium acetate or praseodymium oxalate; the barium salt comprises barium nitrate, barium acetate or barium oxalate; the iron salt comprises ferric nitrate or ferric oxalate; the copper salt comprises copper nitrate, copper acetate or copper oxalate; the niobium salt is niobium oxalate.
CN201910159682.3A 2019-03-04 2019-03-04 Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material Active CN109888303B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910159682.3A CN109888303B (en) 2019-03-04 2019-03-04 Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910159682.3A CN109888303B (en) 2019-03-04 2019-03-04 Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material

Publications (2)

Publication Number Publication Date
CN109888303A CN109888303A (en) 2019-06-14
CN109888303B true CN109888303B (en) 2020-11-03

Family

ID=66930426

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910159682.3A Active CN109888303B (en) 2019-03-04 2019-03-04 Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material

Country Status (1)

Country Link
CN (1) CN109888303B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111330583A (en) * 2020-03-03 2020-06-26 黑龙江大学 Catalyst for electrochemical water decomposition reaction and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103113613A (en) * 2013-01-30 2013-05-22 浙江大学 Preparation method of self-supporting through-type polyelectrolyte ordered porous membrane

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6476765B2 (en) * 2013-11-06 2019-03-06 東レ株式会社 Gas diffusion electrode substrate and gas diffusion electrode using the same
CN104835970A (en) * 2015-03-24 2015-08-12 大连理工大学 A medium-temperature solid oxide fuel cell cathode having a Ba<2+>-vacant Cu<2+>-doped perovskite structure and a preparing method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103113613A (en) * 2013-01-30 2013-05-22 浙江大学 Preparation method of self-supporting through-type polyelectrolyte ordered porous membrane

Also Published As

Publication number Publication date
CN109888303A (en) 2019-06-14

Similar Documents

Publication Publication Date Title
CN104078687B (en) Anode material of SOFC containing alkali metal or alkali earth metal and its production and use
CN111584890B (en) In-situ self-stabilization type solid oxide fuel cell cathode, cell and preparation method thereof
CN109759077A (en) A kind of perovskite oxide catalyst and its preparation method and application
CN108923042A (en) Sodium-ion battery stratiform manganese-based anode material and preparation method thereof
CN107604375A (en) Difunctional VPO catalysts of the porous carbon complex of nitrogen cobalt codope and its preparation method and application
CN110294499B (en) Method for preparing ternary cathode material by combining presintering and dipping and lithium battery
CN108649235A (en) A kind of A laminated perovskite type electrode material and preparation method thereof
CN111244470B (en) Nano composite cathode and preparation and application thereof
CN111933933A (en) Novel lithium ion battery cathode material and preparation method thereof
CN109860640A (en) A kind of Direct Carbon Fuel Cells anode material in situ that gasification reaction catalyst is precipitated
CN108103524A (en) A kind of electrolytic tank of solid oxide and preparation method thereof
CN108493460B (en) Perovskite/cerium oxide oxygen catalyst and desolvation composite preparation method thereof
CN103224394A (en) Lithium carbonate modified cerium barium zirconate proton conductor material and preparation method thereof
CN109888303B (en) Method for improving catalytic performance of high-catalytic-activity direct carbon fuel cell anode material
CN109841840A (en) A kind of high-temperature electrolysis pond hybrid fuel electrode and preparation method thereof
CN104103837A (en) Anti-carbon dioxide intermediate/low temperature solid oxide fuel cell cathode material and use thereof
CN110534758A (en) A method of utilizing four three carbon surface modified perovskite oxides of nitridation
CN114583126B (en) La (La) 2 O 3 Co/AB composite material and preparation method and application thereof
CN112670525B (en) Solid oxide fuel cell electrode material
CN102867966A (en) Porous micro-sphere post-spinel nitride calcium manganese oxygen compound, and preparation of and application thereof
CN111254458A (en) Perovskite composite cathode and preparation method and application thereof
CN108384046A (en) A kind of Pt-CeO2The preparation of/porous polyaniline electrode material
CN1266312C (en) Air electrode catalyst and its preparing process
CN107394219A (en) A kind of VC/ graphene composite materials and preparation method thereof and the application in lithium-air battery
CN114635150A (en) Novel solid oxide electrolytic cell oxygen electrode and preparation method thereof

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
GR01 Patent grant
GR01 Patent grant