CN104409742A - BaCoO3-delta base B-position Bi2O3-Nb2O5 co-doped cathode material of solid oxide fuel cell, preparation method and applications thereof - Google Patents

BaCoO3-delta base B-position Bi2O3-Nb2O5 co-doped cathode material of solid oxide fuel cell, preparation method and applications thereof Download PDF

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CN104409742A
CN104409742A CN201410624199.5A CN201410624199A CN104409742A CN 104409742 A CN104409742 A CN 104409742A CN 201410624199 A CN201410624199 A CN 201410624199A CN 104409742 A CN104409742 A CN 104409742A
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cathode material
fuel cell
oxide fuel
solid
codope
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乐士儒
孙克宁
朱晓东
贺绍飞
关丽丽
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
    • H01M4/8652—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites as mixture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • General Chemical & Material Sciences (AREA)
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Abstract

The invention discloses a BaCoO3-delta base B-position Bi2O3-Nb2O5 co-doped cathode material of solid oxide fuel cell, a preparation method and applications thereof. The provided cathode material has a perovskite type structure and is represented by a chemical formula: BaBi<x>Nb<y>Co<1-x-y>O<3-delta>, wherein the delta represents oxygen excess or oxygen deficiency (-1=<delta=<1), the x represents the doping amount of Bi2O3 (0=<x=<0.15), and the y represents the doping amount of Nb2O5 (0=<y=<0.2). The chemical compatibility between the provided BaBi<x>Nb<y>Co<1-x-y>O<3-delta> cathode material and the conventional electrolyte material such as GDC, and the like is good. In the air the current can be well conducted by the oxygen ions and electrons. In the temperature range of 450 to 850 DEG C, the provided cathode material has a very good oxidation-reduction catalytic activity. The cathode material is suitable for a solid oxide fuel cell used at a mid-low temperature.

Description

A kind of BaCoO 3-δbase B position Bi 2o 3and Nb 2o 5cathode material for solid-oxide fuel cell of codope and preparation method thereof and application
Technical field
The present invention relates to a kind of cathode material for solid-oxide fuel cell and preparation method thereof and application, be specifically related to a kind of B position codope Bi 2o 3and Nb 2o 5element containing cobalt BaCoO 3-δbased perovskite type Oxide Cathode Materials and preparation method thereof and application.
Background technology
Solid Oxide Fuel Cell (SOFC) is subject to the attention of countries in the world and drops into a large amount of manpower and materials and research and develop owing to having higher fuel tolerance, higher energy conversion efficiency, lower greenhouse gas emission and produce the advantages such as high-quality waste heat.
Traditional Solid Oxide Fuel Cell working temperature is 800 ~ 1000 DEG C, in order to slow down reaction between battery components with extending battery life, use cheap stainless steel connector and ceramic sealing material to reduce costs, the middle low temperature (500 ~ 700 DEG C) of fuel cell is its development trend simultaneously.But along with the reduction of temperature, electrolytical Ohmic resistance and electrode polarization resistance increase sharply.Research shows, the reaction activity that oxygen is reduced to oxonium ion on negative electrode is greater than 100kJmol usually -1, and oxonium ion transmission activation energy is in the electrolyte generally 50 ~ 60kJmol -1, so cathodic polarization is more responsive to temperature relative to electrolytical ohmic polarization.Therefore, improving cathode material performance is the key obtaining high-performance cell.
The cathode material that SOFC is traditional is La 1-xsr xmnO 3-δ(LSM), only have electron conduction ability and cannot conduct oxygen ions due to LSM, therefore, cathode reaction is confined to air-LSM cathode-electrolyte three phase boundary place.Mixed conductor negative electrode, compared with pure electronic conductor negative electrode, because oxygen reduction reaction can be expanded to whole cathode surface by traditional three phase boundary by it, therefore has more excellent performance.Mixed conductor negative electrode mainly comprises A 2b 2o 5structure of double perovskite and ABO 3perovskite type cathode two class.A 2b 2o 5structure of double perovskite cathode material is due to complicated process of preparation and easily prepare dephasign, and importantly the performance of current structure of double perovskite negative electrode is still lower than perovskite type cathode, so current research mainly concentrates on ABO 3perovskite type cathode material.ABO 3(A is alkali metal or alkaline-earth metal, and B is transition metal) perovskite type cathode material can be divided into cobalt-based and non-cobalt-based two kinds.Cobalt-based negative electrode becomes the study hotspot of cathode material compared with non-cobalt-based negative electrode owing to having excellent catalytic performance.
Cobalt-based perovskite structure negative electrode mainly comprises SrCoO 3base negative electrode and BaCoO 3base negative electrode.Due to Ba 2+ion half warp be greater than Sr 2+ionic radius therefore BaCoO 3base negative electrode has larger free volume and lower Co ion average valence usually.Larger free volume be conducive to oxonium ion body mutually in transmit fast, and then make it have higher oxygen ionic conductivity; Lower Co ion average valence can increase oxygen vacancy concentration, and then improves material property.In addition, Sr-O bond energy is less compared with Ba-O bond energy, therefore BaCoO 3base cathode material has oxygen surface exchange rate and bulk diffusion speed faster usually.Although BaCoO 3base cathode material has excellent theoretical performance, but rarely has report because its structure is difficult to stable.
Through finding, as Novel SrCo prior art retrieval 1-ynb yo 3-δcathodes forintermediate-temperature solid oxide fuel cells (high-performance medium-temperature cathode material for solid-oxide fuel cell SrCo 1-ynb yo 3-δ, Journal of Powder Sources, 2010,195 (12) 3772-3778. " energy magazine ", publication date 2009.12.24), it considers SrCoO 3-δperovskite B site carries out Nb 2o 5the impact of doping target material oxygen reduction catalytic activity, but do not consider BaBi xco 1-xo 3-δperovskite B site carries out Nb 2o 5the impact of doping target material oxygen reduction catalytic activity.
Summary of the invention
In order to improve the deficiency of existing cathode material performance, the invention provides a kind of BaCoO 3-δbase B position Bi 2o 3and Nb 2o 5cathode material for solid-oxide fuel cell of codope and preparation method thereof and application.The present invention is to BaCoO 3-δperofskite type oxide carries out B position Bi 2o 3and Nb 2o 5codope, improves the chemical property of material, to obtain the sofc cathode material that chemical property is good, Stability Analysis of Structures, chemical compatibility are good.
The object of the invention is to be achieved through the following technical solutions:
A kind of BaCoO 3-δbase B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope, has perovskite structure, and ingredient formula is BaBi xnb yco 1-x-yo 3-δ, wherein δ represents oxygen excess amount or shortage amount ,-1≤δ≤1; X represents Bi 2o 3doping, 0≤x≤0.15; Y represents Nb 2o 5doping, 0≤y≤0.2.
The present invention is at BaCoO 3-δbi is carried out in the B position of perovskite oxide 2o 3and Nb 2o 5codope, can improve BaBi xco 1-xo 3-δthe structural stability of material, strengthen electric conductivity and hydrogen reduction catalytic performance, these features make the present invention become the ideal cathode material of intermediate temperature solid oxide fuel cell.
Above-mentioned BaCoO 3-δperovskite oxide B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope adopts solid reaction process or sol-gal process synthesis.Above-mentioned BaCoO is provided below 3-δbase B position Bi 2o 3and Nb 2o 5the cathode of solid oxide fuel cell powder of codope and the Preparation and characterization method of cathode material, specifically comprise the following steps:
Step 1: using source metal as raw material, weighing according to stoichiometric equation proportioning, take dispersant as medium, adopts high energy ball mill ball milling;
Step 2: the presoma after ball milling is just burnt;
Step 3: fire to obtain cathode powder eventually after just burning the powder grinding obtained;
Step 4: by dry-pressing formed after obtained cathode powder and binding agent mixing, adopt four probe method to measure the conductivity of material after calcining;
Step 5: with Gd 2o 3doped Ce O 2(GDC) be electrolyte, adopt screen-printing deposition BaBi xnb yco 1-x-yo 3-δnegative electrode, calcining prepares Symmetrical cells, test electrode performance.
In said method, in described step 1, source metal is oxide containing above-mentioned metallic element or carbonate, and dispersant is absolute ethyl alcohol, and Ball-milling Time is 5 ~ 12h.
In said method, in described step 2, calcining heat is 600 ~ 1100 DEG C, and calcination time is 6 ~ 12h.
In said method, in described step 3, calcining heat is 800 ~ 1200 DEG C, and calcination time is 3 ~ 9h.
In said method, the binding agent described in described step 4 is ethyl cellulose, and the mass ratio accounting for cathode powder is 0.5 ~ 3%.
In said method, BaBi in described step 4 xnb yco 1-x-yo 3-δ, ethyl cellulose and starch mass ratio be 1: 0.1 ~ 0.5: 0.12 ~ 0.3.
In said method, in described step 4, calcining heat is 800 ~ 1000 DEG C, and calcination time is 1 ~ 4h.
Present invention also offers BaBi xnb yco 1-x-yo 3-δapplication in intermediate temperature solid oxide fuel cell cathode material.The thin electrolyte sheet of anode-supported is obtained by the tape casting, anode composition is that the component A of 30 ~ 70% and the B component of mass fraction 70 ~ 30% form by mass fraction, wherein: component A is NiO, B component is the zirconium dioxide (YSZ) of Yttrium oxide doping, the ceria (SDC) of oxidation shirt doping, the ceria (GDC) of gadolinium oxide doping, strontium oxide strontia and magnesium oxide doping lanthanum gallate (LSGM) in one or more, component A and B component are through mixing, ball milling 24 ~ 48h, method by curtain coating on casting machine after deaeration obtains biscuit, through 1350 ~ 1450 DEG C of calcining 5 ~ 10h, form fine and close dielectric substrate.By GDC powder and Bi 2o 3powder mixes, wherein Bi 2o 3the mass ratio accounting for GDC is 0.5 ~ 5%, and add the ethyl cellulose accounting for mixed powder gross mass 0.5 ~ 3% and apply slurry as binding agent preparation, apply GDC intermediate layer under 4000 ~ 6000 turns, at 1200 ~ 1400 DEG C, calcining obtains fine and close barrier layer.Then obtained cathode powder is dissolved in organic solvent, is coated on barrier layer by the method for silk screen printing, through 900 ~ 1000 DEG C of calcining 2 ~ 6h, obtained cathode layer.Above-mentioned cathode powder refers to single-phase BaBi xnb yco 1-x-yo 3-δpowder, wherein δ represents oxygen excess amount or shortage amount ,-1≤δ≤1; X represents Bi 2o 3doping, 0≤x≤0.15; Y represents Nb 2o 5doping, 0≤y≤0.2.
Solid Oxide Fuel Cell designed by the present invention can adopt flat pipe type, tubular type or flat design, and battery configuration adopts anode support type or electrolyte-supporting type, and the operating temperature of battery is 450 ~ 850 DEG C.
The I-V curve test of fuel cell adopts hydrogen to be fuel, and air is oxic gas, and hydrogen flowing quantity mass flowmenter controls, and makes collector with silver conductive adhesive, and test result is obtained by fuel battery test system.
The present invention has following beneficial effect:
BaBi of the present invention xnb yco 1-x-yo 3-δthe electrolyte that cathode material and GDC etc. are traditional has good chemical compatibility, show the hybrid conductive of oxonium ion and electronics in atmosphere, in the temperature range of 450 ~ 850 DEG C, show good oxygen reduction catalytic activity, be applicable to cathode material for solid-oxide fuel cell under middle low temperature.
Accompanying drawing explanation
Fig. 1 is BaBi prepared by different calcining heat 0.05nb 0.15co 0.8o 3-δxRD collection of illustrative plates;
Fig. 2 is BaBi prepared by 1100 DEG C of calcining 5h 0.05nb yco 0.95-yo 3-δthe XRD collection of illustrative plates of powder;
Fig. 3 is BaBi prepared by 1100 DEG C of calcining 5h xnb 0.1co 0.9-xo 3-δthe XRD collection of illustrative plates of powder;
Fig. 4 is BaBi 0.05nb yco 0.95-yo 3-δthe thermal dilatometry of powder;
Fig. 5 is BaBi 0.05nb yco 0.95-yo 3-δthe conductance profile of negative electrode;
Fig. 6 is BaBi 0.05nb yco 0.95-yo 3-δthe impedance spectrogram of negative electrode Symmetrical cells;
Fig. 7 is NiO-YSZ/YSZ/GDC/BaBi 0.05nb 0.15co 0.8o 3-δmonocell discharge curve at different temperatures;
Fig. 8 is NiO-YSZ/YSZ/GDC/BaBi 0.05nb yco 0.95-yo 3-δdischarge curve at monocell 750 DEG C;
Fig. 9 is YSZ/GDC/BaBi 0.05nb 0.15co 0.8o 3-δprofile scanning Electronic Speculum figure.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described; but be not limited thereto; everyly technical solution of the present invention modified or equivalent to replace, and not departing from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
Embodiment 1:
Present embodiments provide the perovskite type cathode material that a kind of intermediate temperature solid oxide fuel cell uses, its chemical formula is BaBi xnbyCo 1-x-yo 3-δ, wherein δ represents oxygen excess amount or shortage amount ,-1≤δ≤1; X represents Bi 2o 3doping, 0≤x≤0.15; Y represents Nb 2o 5doping, 0≤y≤0.2.
The cathode material used by the Solid Oxide Fuel Cell of above chemical formulation is B position Bi 2o 3and Nb 2o 5the BaBi with perovskite type crystal structure of codope xnb yco 1-x -yo 3-δ, pass through Bi 2o 3and Nb 2o 5codope improve chemical property, to preparation Stability Analysis of Structures, sofc cathode material that chemical compatibility is good.
As shown in Figure 2, work as x=0.05, y=0,0.05,0.10,0.15 or 0.20 time, BaBi 0.05nb yco 0.95-yo 3-δbe really perovskite structure; As shown in Figure 3, work as y=0.10, x=0.05, when 0.10 and 0.15, BaBi xnb 0.1co 0.9-xo 3-δfor perovskite structure.
Embodiment 2:
Present embodiments provide a kind of embodiment 1 intermediate temperature solid oxide fuel cell cathode material BaBi 0.05nb yco 0.95-yo 3-δpreparation and characterization method, specifically include following steps:
Step 1: using metal oxide or carbonate as raw material, weighs according to stoichiometric equation proportioning, with absolute ethyl alcohol dispersant for medium, adopts high energy ball mill ball milling 12h;
Step 2: burn 10h by the beginning of the presoma after ball milling 900 DEG C;
Step 3: after just burning the powder grinding obtained, 1100 DEG C are burnt 5h eventually and obtain cathode powder;
Step 4: the ethyl cellulose accounting for cathode powder quality 0.5 ~ 3% is added wherein, in steel casting mould, under 10 ~ 30MPa, dry-pressing 5 ~ 15min is shaping, the sample be pressed into is warming up in high temperature furnace 900 ~ 1100 DEG C of temperature lower calcination 1 ~ 3h, the sample that preparation is fine and close, adopts four probe method to measure the conductivity of material.
Step 5: by GDC electrolyte obtained for curtain coating at 1400 ~ 1600 DEG C of calcining 3 ~ 8h.By obtained BaBi 0.05nb yco 0.95-yo 3-δpowder adds the ethyl-cellulose binder of mass fraction 5 ~ 15% and the starch pore creating material of mass fraction 5 ~ 15%, add the terpinol of 1 ~ 5 as solvent, be coated on the electrolytical both sides of GDC by the method for silk screen printing, at 900 ~ 1000 DEG C, calcine 2h, obtained BaBi 0.05nb yco 0.95-yo 3-δsymmetry electrode.
Embodiment 3:
Present embodiments provide a kind of BaBi 0.05nb 0.15co 0.8o 3-δpreparation and property characterize scheme, specifically contain following experimental procedure:
Step 1: take analytically pure brium carbonate 3.947 grams, cobaltosic oxide 1.284 grams, niobium pentaoxide 0.399 gram and bismuth oxide 0.233 gram, with 20mL absolute ethyl alcohol for dispersant, adopts high energy ball mill with the rotating speed ball milling 12h of 300 revs/min.
Step 2: the presoma after ball milling is dried, burns 10h in air atmosphere at the beginning of 900 ~ 1100 DEG C, be then cooled to room temperature.Fig. 1 is shown in by prepared powder XRD collection of illustrative plates, shows that prepared cathode powder can obtain perovskite structure really.
Step 3: burn 5h eventually in 1100 DEG C after just burning the powder grinding obtained and obtain required cobalt-based perovskite type cathode powder BaBi 0.05nb 0.15co 0.8o 3-δ, concrete sin-tering mechanism is:
Step 4: add after 1% (mass ratio) ethyl-cellulose binder mixes at the cathode powder of synthesis, in steel casting mould, under 20MPa, dry-pressing 10min is shaping, the sample be pressed into is warming up in high temperature furnace 1000 DEG C of temperature lower calcination 2h, the sample that preparation is fine and close, adopt four point probe to measure the conductivity of material scope in 100 ~ 800 DEG C, conductivity is 38.51Scm -1.
Step 5: take 0.1 gram of cathode powder, 0.001 gram of ethyl cellulose and 0.008 gram of starch, adds after two terpinols mix and is mixed with slurry, is coated in fine and close GDC bath surface that high temperature burns till uniformly as functional layer by silk screen print method; Take 0.1 gram of cathode powder, 0.01 gram of ethyl cellulose and 0.012 gram of starch, add after four terpinols mix and be mixed with slurry, be coated in dried functional layer surface uniformly by silk screen print method, at 950 DEG C, calcine 2h after drying, make Symmetrical cells; Carry out testing impedance with Symmetrical cells, obtain its polarization resistance at different temperatures, the polarization resistance wherein 750 DEG C time is 0.055 Ω cm 2.
Embodiment 4:
BaBi 0.05nb yco 0.95-yo 3-δthe thermal expansion measurement of (y=0.10,0.15 and 0.20) material.
Netsch DIL 402PC thermal dilatometer is adopted to measure BaBi 0.05nb yco 0.95-yo 3-δthe thermal coefficient of expansion of (y=0.10,0.15 and 0.20).Prepare bar shaped sample by dry pressing, size 5 × 5 × 10mm, obtain densified sample, Range of measuring temp 30 ~ 900 DEG C, heating rate 5 DEG C of min through 1000 DEG C of sintering 5h -1.Test result as shown in Figure 4, shows that prepared negative electrode and electrolyte have the thermal coefficient of expansion mated.
Embodiment 5:
BaBi 0.05nb yco 0.95-yo 3-δthe hybrid conductive performance of (y=0.10,0.15 and 0.20) material measures.
Four probe method is adopted to measure BaBi 0.05nb yco 0.95-yo 3-δthe mixed conductivity of (y=0.10,0.15 and 0.20) dense ceramic membrane.The preparation of bar shaped sample is identical with MEASURING THE THERMAL EXPANSION COEFFICIENT.The two ends of rod-like samples are after sintering coated silver conductive adhesive and are connected with filamentary silver, at 350 DEG C of heat treatment 0.5h, after at 750 DEG C of heat treatment 0.5h.Sample is placed in tube furnace, is warming up to 800 DEG C from 200 DEG C, heating rate 5 DEG C of min -1, measure a data point every 50 DEG C, each data point 10min stabilization time, measurement atmosphere is air.Test result as shown in Figure 5, shows that prepared negative electrode has higher conductivity, meets the requirement of negative electrode to conductivity.
Embodiment 6:
BaBi 0.05nb yco 0.95-yo 3-δ(y=0.10,0.15 and 0.20) measures as the Symmetrical cells impedance spectrum of cathode material.
The method of curtain coating is obtained 180 μm of thick GDC electrolyte, 1500 DEG C of calcining 5h.By obtained BaBi 0.05nb yco 0.95-yo 3-δ(y=0.10,0.15 and 0.20) powder adds a certain amount of ethyl-cellulose binder, starch pore creating material and terpinol solvent, with screen-printing deposition in the electrolytical both sides of GDC, at 950 DEG C, calcines 2h, obtained BaBi 0.05nb yco 0.95-yo 3-δ(y=0.10,0.15 and 0.20) symmetry electrode.
Obtained BaBi 0.05nb yco 0.95-yo 3-δ(y=0.10,0.15 and 0.20) symmetry electrode carries out impedance spectrum test at 450 ~ 850 DEG C, and tester M2273 electrochemistry integrated test system, once test every 50 DEG C, test frequency scope is at 100mHz ~ 1MHz.As shown in Figure 6,700 DEG C of cathodic polarization resistance only have 0.055 Ω cm to the test result of 700 DEG C 2, show that prepared cathodic polarization is functional.
Embodiment 7:
BaBi 0.05nb 0.15co 0.8o 3-δas the cell I-V performance measurement of cathode material.
Prepare the thin electrolyte half-cell of anode support type by the tape casting, anode by mass fraction be 55% NiO and mass fraction be 45% YSZ through ball mill (FRITSCH) mix form, electrolyte is made up of YSZ.The electrolyte of anode-supported calcines 5h to form dense electrolyte layer at 1400 DEG C.Dielectric substrate silk screen printing GDC intermediate layer, 1300 DEG C, GDC intermediate layer calcining 5h.Then by obtained BaBi 0.05nb 0.15co 0.8o 3-δpowder adds a certain amount of ethyl-cellulose binder, starch pore creating material and terpinol solvent, is coated on GDC intermediate layer, at 950 DEG C, calcines 2h by the method for silk screen printing, obtained negative electrode.
The I-V curve of fuel cell obtains with ArBin fuel battery test system.Be fuel gas with hydrogen during test, ambient air is oxic gas, and silver conductive adhesive is collector, and with devitrified glass seal isolation air and oxygen, probe temperature, at 600 ~ 750 DEG C, is tested once every 50 DEG C.750 DEG C of power reach 1.23Wcm 2; Open circuit voltage reaches 1.11V, illustrates that cell sealing is respond well.Test result is shown in Fig. 7.Show that prepared negative electrode obtains good discharge performance on battery.

Claims (6)

1. a BaCoO 3-δbase B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope, is characterized in that described cathode material has perovskite structure, and ingredient formula is BaBi xnb yco 1-x-yo 3-δ, wherein δ represents oxygen excess amount or shortage amount ,-1≤δ≤1; X represents Bi 2o 3doping, 0≤x≤0.15; Y represents Nb 2o 5doping, 0≤y≤0.2.
2. BaCoO according to claim 1 3-δbase B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope, is characterized in that described y=0.10; X=0,0.05,0.10 or 0.15.
3. BaBi according to claim 1 xco 1-xo 3-δbase B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope, is characterized in that described x=0.05; Y=0,0.05,0.10,0.15 or 0.20.
4. a BaCoO according to claim 1 3-δbase B position Bi 2o 3and Nb 2o 5the preparation method of the cathode material for solid-oxide fuel cell of codope, is characterized in that described method step is as follows:
Step 1: using source metal as raw material, weighing according to stoichiometric equation proportioning, take dispersant as medium, and adopt high energy ball mill ball milling 5 ~ 12h, described source metal is the oxide containing metallic element described in claim 1 or carbonate, and dispersant is absolute ethyl alcohol;
Step 2: be just burn 6 ~ 12h under the condition of 600 ~ 1100 DEG C in calcining heat by the presoma after ball milling;
Step 3: after just burning the powder grinding obtained is burn 3 ~ 9h eventually under the condition of 800 ~ 1200 DEG C in calcining heat, obtained cathode powder, i.e. BaCoO 3-δbase B position Bi 2o 3and Nb 2o 5the cathode material for solid-oxide fuel cell of codope.
5. a BaCoO according to claim 1 3-δbase B position Bi 2o 3and Nb 2o 5the application of cathode material for solid-oxide fuel cell in intermediate temperature solid oxide fuel cell cathode material of codope.
6. BaCoO according to claim 5 3-δbase B position Bi 2o 3and Nb 2o 5the application of cathode material for solid-oxide fuel cell in intermediate temperature solid oxide fuel cell cathode material of codope, it is characterized in that described Solid Oxide Fuel Cell adopts flat pipe type, tubular type or flat design, battery configuration adopts anode support type or electrolyte-supporting type, and the operating temperature of battery is 450 ~ 850 DEG C.
CN201410624199.5A 2014-11-06 2014-11-06 BaCoO3-delta base B-position Bi2O3-Nb2O5 co-doped cathode material of solid oxide fuel cell, preparation method and applications thereof Pending CN104409742A (en)

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CN105742674A (en) * 2014-12-08 2016-07-06 中国科学院大连化学物理研究所 Positive electrode material of high-temperature fuel cell and preparation method of positive electrode material
CN106099148A (en) * 2016-07-21 2016-11-09 北京理工大学 A kind of preparation method of solid-oxide fuel battery electrolyte
CN108666589A (en) * 2018-05-24 2018-10-16 哈尔滨工业大学 There is one kind low thermal coefficient of expansion solid oxide fuel cell cobalt-based cathode material to prepare and its apply
CN110291672A (en) * 2017-02-16 2019-09-27 日本特殊陶业株式会社 Electrochemical reaction single battery and electrochemical reaction battery pack
CN111211332A (en) * 2020-01-13 2020-05-29 合肥国轩高科动力能源有限公司 Medium-temperature solid oxide fuel cell cathode material
CN111261885A (en) * 2018-11-30 2020-06-09 中国科学院大连化学物理研究所 Application of oxide with three-side structure in cathode of solid oxide fuel cell
CN112447988A (en) * 2019-08-28 2021-03-05 罗伯特·博世有限公司 Medium-temperature solid oxide fuel cell cathode material
CN113299960A (en) * 2021-05-17 2021-08-24 深圳大学 Ethylene and electric energy symbiotic solid oxide fuel cell and preparation method thereof
KR20230055807A (en) * 2021-10-19 2023-04-26 한국과학기술원 A perovskite compound, a catalyst comprising the same, and an electrochemical device comprising the same
CN116666670A (en) * 2023-08-01 2023-08-29 成都岷山绿氢能源有限公司 Lanthanum-niobium co-doped intermediate-temperature SOFC cathode material and preparation method and application thereof
CN118099451A (en) * 2024-04-22 2024-05-28 成都岷山绿氢能源有限公司 A-site defect and B-site multielement doped intermediate-temperature SOFC cathode material and preparation method and application thereof

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