CN101275235A - Preparation for high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder - Google Patents
Preparation for high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder Download PDFInfo
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- CN101275235A CN101275235A CNA2007103047739A CN200710304773A CN101275235A CN 101275235 A CN101275235 A CN 101275235A CN A2007103047739 A CNA2007103047739 A CN A2007103047739A CN 200710304773 A CN200710304773 A CN 200710304773A CN 101275235 A CN101275235 A CN 101275235A
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- 239000000843 powder Substances 0.000 title claims abstract description 55
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000001301 oxygen Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000007787 solid Substances 0.000 title claims abstract description 23
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007772 electrode material Substances 0.000 claims abstract description 10
- 235000015110 jellies Nutrition 0.000 claims abstract description 9
- 239000008274 jelly Substances 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 229910001960 metal nitrate Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 8
- 229910002651 NO3 Inorganic materials 0.000 claims description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 238000004382 potting Methods 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 238000001354 calcination Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 150000001455 metallic ions Chemical class 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- JJPIBVXUBGWBLR-UHFFFAOYSA-O azanium;2-hydroxypropane-1,2,3-tricarboxylic acid;nitrate Chemical compound [NH4+].[O-][N+]([O-])=O.OC(=O)CC(O)(C(O)=O)CC(O)=O JJPIBVXUBGWBLR-UHFFFAOYSA-O 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000002186 photoelectron spectrum Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The invention belongs to the high-temperature water vapor electrolyzing hydrogen preparation field, in particular to relating a preparation method of high performance solid oxide electrolytic cell oxygen electrode material. The method uses metal nitrate with the weight ratio of 5wt% to 30wt%, citric acid with the weight ratio of 1wt% to 10wt%, ammonium nitrate with the ratio percentage of 1wt% to 10wt%, ammonia with the weight ratio of 5wt% to 20wt% and deionized water with the weight ratio of 50wt% to 80wt% as raw material, and adopts a low-temperature self-propagating method to effectively prepare the powder. Firstly a plurality of metal nitrate solutions needed by the special oxygen electrode material are demarcated and prepared according to stoichiometric ratio, and after the metal nitrate solutions are mixed and stirred uniformly, incendiary agent citric acid and combustion improver ammonium nitrate are added, and ph value of the solutions is adjusted to the range of 7 to 9 by using the ammonia, and the mixed solution is evaporated till the solution changes into jelly, and then the jelly is heated continuously till the low-temperature self-propagating combustion is initiated to gain a first powder, then the first powder is processed heat treatment again to gain the aim powder. The method has the advantages of low operation temperature, high product ratio surface area, uniformed granularity, small average particle size, good sintering temperature activity, exact stoichiometric ratio and so on.
Description
Technical field
The invention belongs to the high temperature steam electrolytic hydrogen manufacturing field, particularly a kind of preparation method of high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder.
Background technology
The high temperature steam electrolytic hydrogen manufacturing technology adopts soild oxide high-temperature electrolysis pond that water vapor is decomposed and generates hydrogen and oxygen, and its theoretical hydrogen production efficiency can be the most effective extensive hydrogen producing technology of having realized at present up to more than 50%.The high-temperature solid oxide electrolyzer is a kind of efficient, oligosaprobic energy conversion device.The exploitation of high-performance Oxygen Electrode Material is one of key problem of high-temperature solid oxide electrolyzer development.The performance of Oxygen Electrode Material and the preparation technology of its powder are closely related, want the good Oxygen Electrode Material of obtained performance, must select the electrode powder body material that suitable preparation technology is big with the reactive behavior that obtains, purity is high, accurate and even particle distribution are compared in metering.
Perovskite oxygen electrode powder preparation method commonly used at present is generally solid phase method and liquid phase method.Solid phase method uses high temperature sintering, exists service temperature height, soaking time length, product particle more greatly, easily to introduce shortcomings such as impurity and specific surface are low; Liquid phase method comprises coprecipitation method, sol-gel method, citric acid method etc., though these methods can reduce the one-tenth phase temperature of powder body material to a certain extent, prepare the oxide powder of high-ratio surface, but the control of these method existence conditions is complicated, the product stoichiometric ratio is inaccurate, sintering time long and be prone to shortcoming such as metal ion segregation.
Summary of the invention
In view of prior art deficiency, the object of the present invention is to provide a kind of preparation method of high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, technical scheme is as follows:
Present method adopts the deionized water of 5～30wt% metal nitrate, 1～10wt% citric acid, 1～10wt% ammonium nitrate, 5～20wt% ammoniacal liquor and 50～80wt% as raw material, utilize low-temperature self-propagating method high-efficiency production of nano level perovskite oxygen electrode powder, realize that the step of this method is as follows:
(1) utilize metal oxide to be dissolved in the nitric acid preparation and prepare the required multiple metal ion nitrate solution of described Oxygen Electrode Material respectively, each metal ion nitrate solution that will make then mixes, and stirs;
(2) in above-mentioned mixing solutions, add an amount of incendiary material citric acid, ignition dope ammonium nitrate, the pH value with ammoniacal liquor adjustment solution is 7～9 at last, heating in water bath stirs simultaneously again, then mixing solutions is gone in the furnace pot, heating evaporation becomes jelly until solution;
(3) continue the described jelly of heating and obtain first powder, and then promptly obtain target powder, i.e. high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder through the thermal treatment of certain condition to the low-temperature self-propagating burning takes place.
The temperature of described heating in water bath is 60-90 ℃, and be 0.5-2h heat-up time.
The solid oxidate electrolytic cell perovskite oxygen electrode powder that makes have a single perovskite structure.
The one-tenth phase temperature of the solid oxidate electrolytic cell perovskite oxygen electrode powder that makes is 800-1000 ℃.
The median size of the solid oxidate electrolytic cell perovskite oxygen electrode powder that makes is less than 20nm.
Described metal is La, Ba, Sr, Co, Fe, Ca, Bi, Pr, Sm, Ce.
Confirm that through X-ray diffraction (XRD) analytical test the powder of preparation has single perovskite structure; Scanning electron microscope (SEM) and high resolving power transmission electron microscope (HTEM) analysis revealed, the synthetic product uniform particles, median size is under 20nm.
Beneficial effect of the present invention:
With respect to prior art, method provided by the invention has that synthesis temperature is low, burning fully, product specific surface area height, epigranular, advantage such as median size is little, sintering temperature is low, activity is good and stoichiometric ratio is accurate.
Description of drawings
Fig. 1 is Ba
0.5Sr
0.5Co
0.8Fe
0.2The differential thermal of forerunner's powder-thermogravimetric analysis figure (TG-DTA);
Fig. 2 is treatment of different temperature Ba
0.5Sr
0.5Co
0.8Fe
0.2The x-ray diffraction pattern of forerunner's powder (XRD);
Fig. 3 is Ba
0.5Sr
0.5Co
0.8Fe
0.2The scanning electron microscope of powder (SEM) photo;
Fig. 4 is Ba
0.5Sr
0.5Co
0.8Fe
0.2High power transmission electron microscope (HTEM) photo of product;
Fig. 5 is Ba
0.5Sr
0.5Co
0.8Fe
0.2The photoelectron spectrum of product (EDX) photo.
Embodiment
The present invention proposes a kind of low-temperature self-propagating preparation method of nano level perovskite oxygen electrode powder, its main synthesis step comprises: the synthetic and heat treatment process of the low-temperature self-propagating of the preparation of the preparation of material solution and demarcation, precursor solution, first powder.
The present invention will be further described below in conjunction with embodiment, but do not limit the present invention.
Example 1: nano level perovskite oxygen electrode material B a
0.5Sr
0.5Co
0.8Fe
0.2(BSCF) powder preparing
Preparation Ba (NO
3)
2, Sr (NO
3)
2, Co (NO
3)
2, Fe (NO
3)
3Solution, reagent all adopt analytical pure, use deionized water dissolving, constant volume in volumetric flask; Sr (NO
3)
2, Co (NO
3)
2And Fe (NO
3)
3Concentration adopt the EDTA complexometry accurately to demarcate Ba (NO
3)
2Concentration adopt weighting method to demarcate.Accurately pipette Ba (NO by the metering ratio
3)
2, Sr (NO
3)
2, Co (NO
3)
2, Fe (NO
3)
3Solution, mixing and stirring; According to citric acid: metal ion is that 2: 1 ratio takes by weighing citric acid, adds the suitable quantity of water dissolving and stirs, and adds in the metallic ion mixed liquor, and 80 ℃ of stirring in water bath mix; According to ammonium nitrate: citric acid is that 2: 1 ratio adds ammonium nitrate solid, stirs to add mixing solutions, and 80 ℃ of stirring in water bath are about one hour; Solution is transferred in the ceramic evaporation ware, places heating evaporation on the electric furnace,, continue to be heated to burning, promptly obtain first powder to forming a thickness jelly; This first powder can obtain the Ba of single perovskite structure in 2 hours through 900 ℃ of calcinings
0.5Sr
0.5Co
0.8Fe
0.2
Fig. 1 is the xerogel TG-DTA curve that the BSCF precursor powder of citric acid-ammonium nitrate method preparation obtains through 120 ℃ of oven dry 12h.Probe temperature is 200 ℃～1300 ℃, and air atmosphere, temperature rise rate are 10 ℃/min.As can be seen from the figure, through whole temperature-rise period, total weightlessness of BSCF sample only is original about 16%, this explanation is through combustion reactions, originally water in the presoma and organism are most of removes, therefore, very mild at leading portion (＜700 ℃) curve of TG curve.In the DTA curve, the endotherm(ic)peak correspondence of 670 ℃ and 894 ℃ appearance the decomposition of nitrate; Then be the formation of perovskite structure 792.1 ℃, 845.9 ℃ and 913.8 ℃ of endotherm(ic)peaks of locating to occur.The analysis of corresponding XRD, first powder can obtain the perovskite structure of complete in crystal formation through 900 ℃ of thermal treatments.
Fig. 2 is that the BSCF presoma is under air atmosphere, through the XRD figure behind the differing temps calcining 2h.As can be seen, in the time of 700 ℃, the assorted peak on the XRD curve is more from the figure, and the peak of uhligite phase is not obvious; In the time of 800 ℃, assorted peak significantly reduces, and the characteristic peak of uhligite phase is also more and more obvious; After sample is through 900 ℃ of processing, can obtain comparatively complete BSCF crystal formation.
Fig. 3 and Fig. 4 are respectively the first powder of BSCF through SEM, the TEM photo of 900 ℃ of calcinings behind the 2h.As can be seen, the BSCF powder granule is evenly distributed, and has a large amount of apertures from Fig. 3.This is because organic compound combustion and nitrate are emitted a large amount of gas when decomposing causes.Fig. 4 is the first powder of BSCF through the TEM photo behind 900 ℃ of calcining 2h.As can be seen, the BSCF powder granule is less from the figure, and median size is less than 20nm.
By the x-ray photoelectron spectroscopy instrument the elementary composition of powder sample analyzed, as shown in Figure 5.As can be seen, have elements such as Ba, Sr, Co, Fe, O in the sample from the figure, Biao Zhu peak correspondence is not copper grid and carbon film on the specimen holder.Each metallic element that calculates by sxemiquantitative EDS is than being Ba: Sr: Co: Fe=5: 5: 8: 2, and consistent with preset value, illustrate that this method can accurately be measured the target product of ratio.
Example 2: perovskite oxygen electrode material La
0.5Sr
0.5Co
0.8Fe
0.2(LSCF) powder preparing
Preparation Sr (NO
3)
2, La (NO
3)
3, Co (NO
3)
2, Fe (NO
3)
3Solution, reagent all adopt analytical pure, use deionized water dissolving; Adopt the high-purity La of nitric acid dissolve
2O
3Method preparation La (NO
3)
3Solution, constant volume in volumetric flask; La (NO
3)
3, Sr (NO
3)
2, Co (NO
3)
2And Fe (NO
3)
3Concentration all adopt the EDTA complexometry accurately to demarcate; Accurately pipette La (NO by the metering ratio
3)
3, Sr (NO
3)
2, Co (NO
3)
2, Fe (NO
3)
3Solution, mixing and stirring; According to citric acid: metal ion is that 2: 1 ratio takes by weighing citric acid, adds the suitable quantity of water dissolving and stirs, and adds in the metallic ion mixed liquor, and 80 ℃ of stirring in water bath mix; According to ammonium nitrate: citric acid is that 2: 1 ratio adds ammonium nitrate solid, stirs to add mixing solutions, and 80 ℃ of stirring in water bath are about one hour; Solution is transferred in the ceramic evaporation ware, places heating evaporation on the electric furnace,, continue to be heated to burning, promptly obtain first powder to forming a thickness jelly; This first powder can obtain La in 2 hours through 900 ℃ of calcinings
0.5Sr
0.5Co
0.8Fe
0.2(LSCF) powder.
Example 3: perovskite oxygen electrode material Pr
0.5Sr
0.5Co
0.8Fe
0.2(PSCF) powder preparing
Preparation Sr (NO
3)
2, Pr (NO
3)
4, Co (NO
3)
2, Fe (NO
3)
3Solution, reagent all adopt analytical pure, use deionized water dissolving; Constant volume in volumetric flask; Pr (NO
3)
4, Sr (NO
3)
2, Co (NO
3)
2And Fe (NO
3)
3Concentration all adopt the EDTA complexometry accurately to demarcate; Accurately pipette Pr (NO by the metering ratio
3)
4, Sr (NO
3)
2, Co (NO
3)
2, Fe (NO
3)
3Solution, mixing and stirring; According to citric acid: metal ion is that 2: 1 ratio takes by weighing citric acid, adds the suitable quantity of water dissolving and stirs, and adds in the metallic ion mixed liquor, and 80 ℃ of stirring in water bath mix; According to ammonium nitrate: citric acid is that 2: 1 ratio adds ammonium nitrate solid, stirs to add mixing solutions, and 80 ℃ of stirring in water bath are about one hour; Solution is transferred in the ceramic evaporation ware, places heating evaporation on the electric furnace,, continue to be heated to burning, promptly obtain first powder to forming a thickness jelly; This first powder can obtain Pr in 2 hours through 950 ℃ of calcinings
0.5Sr
0.5Co
0.8Fe
0.2(PSCF) powder.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; It will be apparent to those skilled in the art that this description should not be construed as limitation of the present invention, any the present invention is made various corrections and change and without prejudice to spirit of the present invention and scope.Therefore, the present invention attempts to cover of the present invention various corrections and the change that proposes in the scope of right claims and equivalence techniques scheme thereof.
Claims (5)
1. the preparation method of a high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, it is characterized in that, this method adopts the deionized water of 5～30wt% metal nitrate, 1～10wt% citric acid, 1～10wt% ammonium nitrate, 5～20wt% ammoniacal liquor and 50～80wt% as raw material, utilize low-temperature self-propagating method high-efficiency production of nano level perovskite oxygen electrode powder, realize that the step of this method is as follows:
(1) utilize metal oxide to be dissolved in the nitric acid preparation and prepare the required multiple metal ion nitrate solution of described Oxygen Electrode Material respectively, each metal ion nitrate solution that will make then mixes, and stirs;
(2) in above-mentioned mixing solutions, add the incendiary material citric acid, ignition dope ammonium nitrate, the pH value with ammoniacal liquor adjustment solution is 7～9 at last, and heating in water bath stirs simultaneously again, then mixing solutions is gone in the furnace pot, and heating evaporation becomes jelly until solution;
(3) continue the described jelly of heating and obtain first powder, and then promptly obtain target powder, i.e. high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder through thermal treatment to the low-temperature self-propagating burning takes place.
2. according to the preparation method of claim 1 described high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, it is characterized in that the temperature of described heating in water bath is 60-90 ℃, be 0.5-2h heat-up time.
3. according to the preparation method of claim 1 described high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, it is characterized in that, the solid oxidate electrolytic cell perovskite oxygen electrode powder that makes have a single perovskite structure.
4. according to the preparation method of claim 1 described high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, it is characterized in that the one-tenth phase temperature of the solid oxidate electrolytic cell perovskite oxygen electrode powder that makes is 800-1000 ℃.
5. according to the preparation method of claim 1 described high-performance solid oxidate electrolytic cell perovskite oxygen electrode powder, it is characterized in that the median size of the solid oxidate electrolytic cell perovskite oxygen electrode powder that makes is less than 20nm.
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|---|---|---|---|
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296286A (en) * | 2013-06-08 | 2013-09-11 | 清华大学 | Novel high-temperature CO2 and H2O co-electrolysis superlattice composite oxygen electrode and preparation method thereof |
| CN104313632A (en) * | 2014-10-24 | 2015-01-28 | 清华大学 | Solid oxide electrolysis cell cathode material as well as preparation method and application thereof |
| WO2016017251A1 (en) * | 2014-07-28 | 2016-02-04 | 株式会社日本触媒 | Steam electrolysis cell |
| JP2016033257A (en) * | 2014-07-28 | 2016-03-10 | 株式会社日本触媒 | Cell for water vapor electrolysis |
| US10480083B2 (en) | 2014-07-28 | 2019-11-19 | Nippon Shokubai Co., Ltd. | Steam electrolysis cell |
| CN113000050A (en) * | 2019-12-20 | 2021-06-22 | 天津大学 | Perovskite modified by selective dissolution method and modification method and application thereof |
| CN113991124A (en) * | 2021-10-26 | 2022-01-28 | 福州大学 | Method for improving performance of ceramic oxide cathode |
-
2007
- 2007-12-29 CN CN2007103047739A patent/CN101275235B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296286A (en) * | 2013-06-08 | 2013-09-11 | 清华大学 | Novel high-temperature CO2 and H2O co-electrolysis superlattice composite oxygen electrode and preparation method thereof |
| WO2016017251A1 (en) * | 2014-07-28 | 2016-02-04 | 株式会社日本触媒 | Steam electrolysis cell |
| JP2016033257A (en) * | 2014-07-28 | 2016-03-10 | 株式会社日本触媒 | Cell for water vapor electrolysis |
| US10480083B2 (en) | 2014-07-28 | 2019-11-19 | Nippon Shokubai Co., Ltd. | Steam electrolysis cell |
| CN104313632A (en) * | 2014-10-24 | 2015-01-28 | 清华大学 | Solid oxide electrolysis cell cathode material as well as preparation method and application thereof |
| CN113000050A (en) * | 2019-12-20 | 2021-06-22 | 天津大学 | Perovskite modified by selective dissolution method and modification method and application thereof |
| CN113991124A (en) * | 2021-10-26 | 2022-01-28 | 福州大学 | Method for improving performance of ceramic oxide cathode |
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| Publication number | Publication date |
|---|---|
| CN101275235B (en) | 2011-01-26 |
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