WO2017191979A1 - Procédé de production d'une poudre d'oxyde présentant une structure de pérovskite et poudre d'oxyde ainsi produite - Google Patents

Procédé de production d'une poudre d'oxyde présentant une structure de pérovskite et poudre d'oxyde ainsi produite Download PDF

Info

Publication number
WO2017191979A1
WO2017191979A1 PCT/KR2017/004651 KR2017004651W WO2017191979A1 WO 2017191979 A1 WO2017191979 A1 WO 2017191979A1 KR 2017004651 W KR2017004651 W KR 2017004651W WO 2017191979 A1 WO2017191979 A1 WO 2017191979A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxide powder
precursor
perovskite structure
sol
sample
Prior art date
Application number
PCT/KR2017/004651
Other languages
English (en)
Korean (ko)
Inventor
이희수
류지승
김주영
전설
조승현
김부영
Original Assignee
부산대학교 산학협력단
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 부산대학교 산학협력단 filed Critical 부산대학교 산학협력단
Publication of WO2017191979A1 publication Critical patent/WO2017191979A1/fr

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/04—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/006—Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/624—Sol-gel processing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/30—Three-dimensional structures
    • C01P2002/34—Three-dimensional structures perovskite-type (ABO3)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C04B2235/768—Perovskite structure ABO3

Definitions

  • the present invention relates to a method for producing an oxide powder having a perovskite structure and to an oxide powder produced by the present invention, and more particularly, to a method for producing an oxide powder used as a mixed conductive electrode and having a perovskite structure. It relates to an oxide powder produced by.
  • EDTA-citric acid complexing process is a representative method for synthesizing an oxide having a multi-component perovskite structure containing at least three components. It is a kind of sol-gel method.
  • EDTA and citric acid are used as chelating agents.
  • a metal nitrate-based precursor corresponding to the stoichiometry of the desired composition is dissolved in distilled water and reacted by adding EDTA and citric acid.
  • the metal nitride precursor has an advantage of easily ionizing a metal cation by dissolving in distilled water.
  • One object of the present invention is to shorten the overall process time, to provide a method for producing an oxide powder having a perovskite structure as a material having a desired composition without aggregation phenomenon and the oxide powder produced thereby.
  • Method for producing an oxide powder having a perovskite structure for one purpose of the present invention is a metal precursor solution by mixing the lanthanide metal precursor, barium (Ba) precursor, cobalt (Co) precursor and copper (Cu) precursor with ethanol
  • Preparing a step performing a sol-gel reaction by mixing the EDTA solution containing ethylenediaminetetraacetic acid (EDTA) and ammonia water, the metal precursor solution and citric acid (gel) formed by the sol-gel reaction Drying the compound and calcining the dried compound.
  • EDTA ethylenediaminetetraacetic acid
  • the step of performing the sol-gel reaction may be carried out at the pH 9 to 10 conditions.
  • the sol-gel reaction may include mixing the EDTA solution with the metal precursor solution, mixing citric acid in a state where the EDTA solution and the metal precursor solution are mixed, and mixing the citric acid. Thereby gelling the sol formed.
  • the oxide powder having a perovskite structure prepared by the above method is a layered perovskite in the form of LnBaCo (2-x) Cu x O 5 + ⁇ (0 ⁇ x ⁇ 2, where Ln represents Pr or Sm). It has a sky structure.
  • the diameter of the oxide powder may be 50 nm or less.
  • the production method of the oxide powder having a perovskite structure of the present invention it is possible to significantly shorten the time required to gel in the sol state, and to minimize the size of the particles formed initially to finally achieve the particle size of the oxide particles Can be controlled to below 50 nm.
  • the specific surface area of the oxide particles finally produced may be increased.
  • FIG. 1 is a flowchart illustrating a method of manufacturing an oxide powder having a perovskite structure according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating transmission electron microscope (TEM) images of a sample prepared according to Example 1 and a comparative sample prepared according to Comparative Example 1.
  • TEM transmission electron microscope
  • FIG. 3 is a diagram showing TEM photographs of a sample prepared according to Example 2 of the present invention and a comparative sample prepared according to Comparative Example 2.
  • FIG. 3 is a diagram showing TEM photographs of a sample prepared according to Example 2 of the present invention and a comparative sample prepared according to Comparative Example 2.
  • FIG. 4 is an X-ray diffraction (XRD) analysis graph of a sample prepared according to Example 2 of the present invention and a comparative sample prepared according to Comparative Example 2.
  • XRD X-ray diffraction
  • FIG. 5 is a graph illustrating XRD analysis graphs for explaining a product change according to an acidity change in a process of preparing an oxide powder according to the present invention.
  • FIG. 6 is a graph showing polarization resistance characteristics of a sample prepared according to Example 2 and a comparative sample prepared according to Comparative Example 2.
  • FIG. 6 is a graph showing polarization resistance characteristics of a sample prepared according to Example 2 and a comparative sample prepared according to Comparative Example 2.
  • FIG. 1 is a flowchart illustrating a method of manufacturing an oxide powder having a perovskite structure according to an embodiment of the present invention.
  • a metal precursor solution and an ethylenediaminetetraacetic acid (EDTA) solution may be prepared, respectively. Mix.
  • the metal precursor solution is prepared by mixing at least three different metal precursors with ethanol (ethanol, ethyl alcohol). Ethanol disperses the metal precursors and simultaneously ionizes the metal precursors to form metal ions.
  • ethanol ethanol, ethyl alcohol
  • the metal precursors can solve this problem by dispersing in ethanol.
  • the metal precursor solution includes a lanthanide metal precursor, a barium (Ba) precursor, a cobalt (Co) precursor, and a copper (Cu) precursor.
  • lanthanide metal contained in a lanthanide metal precursor La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yn, or Lu is mentioned.
  • Pr, Nd, Pm, Sm, Eu or Gd can be used, and preferably Pr, Nd or Gd can be used.
  • It comprises the lanthanide metal precursor, barium (Ba) precursor, cobalt (Co) precursor and copper (Cu) precursor, by using it LnBaCo (2-x) Cu x O 5 + ⁇ form (0 ⁇ x ⁇ 2, Ln represents a lanthanide metal) to produce a four-component oxide having a perovskite structure.
  • x may vary depending on the content of the cobalt precursor and the copper precursor to be mixed.
  • the perovskite structure may be a layered perovskite structure.
  • the EDTA solution (EDTA-NH 3 ) can be prepared by adding ammonia water (NH 4 OH) to EDTA and mixing.
  • EDTA solution EDTA-NH 3
  • a liquid similar to a sol becomes in a liquid state.
  • the addition of citric acid to a mixture with a sol-like liquid phase substantially transforms it into a phase, which can be called a sol, and gels by continuously stirring in this state to form a gel.
  • citric acid is mixed into a mixture having a sol-like liquid phase, it is stirred until it becomes a clear or translucent sol, and stirring is continued to form a gel.
  • Each of the steps of forming the sol and the step of gelling the sol may be carried out at a temperature of 50 to 70 °C.
  • agglomeration occurs between EDTA, which is a chelating agent of the chelation reaction, and a chelate where citric acid binds to the metal cation, and this agglomeration also causes the subsequent crystallization between powders.
  • EDTA a chelating agent of the chelation reaction
  • a chelate where citric acid binds to the metal cation
  • this agglomeration also causes the subsequent crystallization between powders.
  • the agglomeration phenomenon can be minimized by using ethanol when preparing the metal precursor solution, so that agglomeration between the crystallized powders can also be minimized.
  • pH conditions which form a sol by mixing citric acid are 9-10.
  • pH conditions which form a sol by mixing citric acid are 9-10.
  • a compound having an additional structure other than the perovskite structure is formed, but when the pH is carried out in the range of pH 9 to 10 perovskite An oxide powder having a wedge structure is formed.
  • the gel can then be dried at 200-300 ° C. to obtain a solid product (precursor of solid oxide powder).
  • the solid product is calcined at a temperature of at least 450 ° C. or higher, whereby an oxide powder can be formed.
  • the solid product is crystallized to form metal oxide particles, thereby forming a metal oxide powder.
  • the temperature conditions of the calcination process may be from 450 °C to 1,000 °C.
  • the temperature condition of the calcination process should exceed at least 1,000 ° C., but the metal oxide powder can be formed by calcination at 450 ° C. to 1,000 ° C. by using ethanol instead of distilled water. Most preferably, it is calcined at 950 ° C. to form metal oxide powder.
  • the powder of the perovskite structure prepared according to the above-described process has a perovskite structure and has a significantly higher dispersibility than the case of forming the perovskite structure powder by a conventional sol-gel method. At the same time, the specific surface area is increased. In addition, the powder of the layered perovskite structure can be stably formed with high dispersibility.
  • the powder of the perovskite structure having such characteristics has mixed ionicity and mixed conductivity, and can be used as a conductive oxide electrode of a solid oxide battery to prevent deterioration of the solid oxide battery and to improve characteristics.
  • PrBaCo 1 a four-component oxide, using a praseodymium (Pr) precursor, a barium (Ba) precursor, a cobalt (Co) precursor, and a copper (Cu) precursor . 9 Cu 0 . 1 O were weighed stoichiometrically to produce a 5 + ⁇ form, by stirring (stir) by using magnetic bar after dissolving them in ethanol to prepare a precursor solution.
  • Pr (NO 3 ) 2 .6H 2 O was used as the praseodymium precursor
  • Cu () was used as the barium precursor, the cobalt precursor, and the copper precursor, respectively.
  • the mixed solution prepared by mixing EDTA with aqueous ammonia was mixed with the precursor solution prepared above, and citric acid was mixed with the mixed solution and stirred at 60 ° C. to prepare a sol.
  • the pH was adjusted to pH 9 using ammonia water, and the molar ratio of total metal cations of praseodymium ions, barium ions, cobalt ions and copper ions, and EDTA and citric acid was 1: 1: 1.5.
  • Sample 2 was prepared in the same manner as in the preparation of Sample 1 according to Example 1, but using a calcination process at 950 ° C.
  • Comparative Sample 1 was prepared through a process substantially the same as the process of preparing Sample 1 according to Example 1, except that the praseodymium precursor, barium precursor, cobalt precursor, and copper precursor were dissolved in distilled water instead of ethanol.
  • Comparative Sample 2 was prepared through a process substantially the same as the process of preparing Sample 2 according to Example 2, except that the praseodymium precursor, the barium precursor, the cobalt precursor, and the copper precursor were dissolved in distilled water instead of ethanol.
  • FIG. 2 is a view showing transmission electron microscope (TEM) pictures of a sample prepared according to Example 1 of the present invention and a comparative sample prepared according to Comparative Example 1
  • Figure 3 is prepared according to Example 2 of the present invention TEM pictures of a sample and a comparative sample prepared according to Comparative Example 2.
  • TEM transmission electron microscope
  • FIG. 4 is an X-ray diffraction (XRD) analysis graph of a sample prepared according to Example 2 of the present invention and a comparative sample prepared according to Comparative Example 2.
  • XRD X-ray diffraction
  • the x axis represents the diffraction angle
  • the y axis represents the intensity at that diffraction angle
  • the lower graph of FIG. 4 is for comparative sample 2
  • the upper graph is for sample 2.
  • Samples 3 to 6 were prepared through substantially the same process as Preparation of Sample 2 according to Example 2 of the present invention, except that pH was adjusted to 7, 8, 10, and 11 using ammonia water in the preparation process. It was.
  • FIG. 5 is a graph illustrating XRD analysis graphs for explaining a product change according to an acidity change in a process of preparing an oxide powder according to the present invention.
  • FIG. 6 is a graph showing polarization resistance characteristics of a sample prepared according to Example 2 and a comparative sample prepared according to Comparative Example 2.
  • FIG. 6 is a graph showing polarization resistance characteristics of a sample prepared according to Example 2 and a comparative sample prepared according to Comparative Example 2.
  • the resistance of Sample 2 using ethanol as a solvent has a lower value than that of Comparative Sample 2 using distilled water. That is, it can be seen that Sample 2 has a resistance value about 25% lower than that of Comparative Sample 2. This result may be attributed to the increase in specific surface area as the dispersibility of Sample 2 is higher than that of Comparative Sample 2. That is, when Sample 2 was prepared using ethanol, it can be directly confirmed that the dispersibility is more improved than that of Comparative Sample 2 prepared using distilled water.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Le procédé de production d'une poudre d'oxyde présentant une structure de pérovskite selon la présente invention comprend les étapes consistant à : préparer une solution de précurseur métallique par mélange d'un précurseur de métal de lanthanide, un précurseur de baryum (Ba), un précurseur de cobalt (Co) et un précurseur de cuivre (Cu) avec de l'éthanol ; effectuer une réaction sol-gel par mélange d'une solution d'acide éthylènediaminetétraacétique (EDTA) comprenant de l'EDTA et une solution d'ammoniac, la solution de précurseur métallique et de l'acide citrique ; sécher un composé gélifié formé par la réaction sol-gel ; et calciner le composé séché.
PCT/KR2017/004651 2016-05-02 2017-05-02 Procédé de production d'une poudre d'oxyde présentant une structure de pérovskite et poudre d'oxyde ainsi produite WO2017191979A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0053725 2016-05-02
KR1020160053725A KR101802067B1 (ko) 2016-05-02 2016-05-02 페로브스카이트 구조를 갖는 산화물 분말의 제조 방법 및 이에 의해 제조된 산화물 분말

Publications (1)

Publication Number Publication Date
WO2017191979A1 true WO2017191979A1 (fr) 2017-11-09

Family

ID=60203030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/004651 WO2017191979A1 (fr) 2016-05-02 2017-05-02 Procédé de production d'une poudre d'oxyde présentant une structure de pérovskite et poudre d'oxyde ainsi produite

Country Status (2)

Country Link
KR (1) KR101802067B1 (fr)
WO (1) WO2017191979A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112791692A (zh) * 2020-12-30 2021-05-14 大连海事大学 一种提高双钙钛矿氧化物氧脱附性能的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101334903B1 (ko) * 2012-11-19 2013-11-29 동의대학교 산학협력단 고체 산화물 연료전지용 캐소드 소재, 캐소드용 조성물, 캐소드와 그 제조 방법 및 이 캐소드를 포함하는 연료전지
KR20140104019A (ko) * 2011-12-15 2014-08-27 레르 리키드 쏘시에떼 아노님 뿌르 레？드 에렉스뿔라따시옹 데 프로세데 조르즈 클로드 셋 이상의 금속염으로부터 졸-겔의 제조 방법 및 세라믹 막 제조 방법의 용도

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140104019A (ko) * 2011-12-15 2014-08-27 레르 리키드 쏘시에떼 아노님 뿌르 레？드 에렉스뿔라따시옹 데 프로세데 조르즈 클로드 셋 이상의 금속염으로부터 졸-겔의 제조 방법 및 세라믹 막 제조 방법의 용도
KR101334903B1 (ko) * 2012-11-19 2013-11-29 동의대학교 산학협력단 고체 산화물 연료전지용 캐소드 소재, 캐소드용 조성물, 캐소드와 그 제조 방법 및 이 캐소드를 포함하는 연료전지

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEN, DENGJIE ET AL.: "intermediate-temperature Electrochemical Performance of a polycrystal Line PrBaCo205+ delta Cathode on Samarium-doped Ceria Electrolyte", JOURNAL OF POWER SOURCES, vol. 188, no. 1, 2009, pages 96 - 105 *
RYU, JI SEUNG ET AL.: "Structural Change and Electrical Conductivity According to Sr Content in Cu-doped LSM (La1-xSrxMn0.8Cu0.203", JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY, vol. 22, no. 2, 2012, pages 78 - 83 *
ZHU, ZHIWEN ET AL.: "Investigation of SmBaCuCo05+ S Double-perovskite as Cathode for Proton-conducting Solid Oxide Fuel Cells", MATERIALS RESEARCH BULLETIN, vol. 45, no. 11, 2010, pages 1771 - 1774 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112791692A (zh) * 2020-12-30 2021-05-14 大连海事大学 一种提高双钙钛矿氧化物氧脱附性能的方法
CN112791692B (zh) * 2020-12-30 2022-11-18 大连海事大学 一种提高双钙钛矿氧化物氧脱附性能的方法

Also Published As

Publication number Publication date
KR101802067B1 (ko) 2017-11-27
KR20170124173A (ko) 2017-11-10

Similar Documents

Publication Publication Date Title
CN108367924B (zh) 用于固体钠离子电池组的具有nasicon结构的电解质材料及其制造方法
DE69409497T2 (de) Verbundpulver aus metalloxid und verfahren zur herstellung desselben
DE3526674C2 (de) Verfahren zur Herstellung einer eine Perowskit-Verbindung enthaltenden Masse und Verfahren zur Herstellung eines im wesentlichen aus einer Perowskit-Verbindung bestehenden Sinterkörpers
DE3877634T2 (de) Verfahren zur herstellung eines mischmetalloxidpulvers.
DE69300948T2 (de) Neue grüne Lanthan-Terbium und Ceriumphosphat-Gemischsleuchtstoffe, Vorläufer davon und Verfahren zur Herstellung.
WO1996010538A1 (fr) Oxydes mixtes de lithium ternaires, leur procede de production et leur utilisation
DE60300173T2 (de) Verfahren zur Herstellung von kristallinem Mischoxidpulver
WO1996037436A1 (fr) Carbonate de cobalt (ii) basique agglomere spheroidal et hydroxyde de cobalt (ii) agglomere spheroidal, leur procede de fabrication et leur application
CN1119627A (zh) 金属钨酸盐及其制备方法和用途
DE4023001C2 (fr)
DE69706884T2 (de) LaMO 3-TYP VERBINDUNG, WOBEI M ALUMINIUM, GALLIUM ODER INDIUM IST, IN PULVER- ODER SINTERFORM ZU DESSEN HERSTELLUNG UND DESSEN VERWENDUNG ALS SAUERSTOFFLEITER
WO2017191979A1 (fr) Procédé de production d'une poudre d'oxyde présentant une structure de pérovskite et poudre d'oxyde ainsi produite
KR20220081259A (ko) 금속원소가 도핑된 티탄산바륨 수열합성방법과 이를 이용한 적층형 세라믹 커패시터용 티탄산바륨 나노막대 및 그 제조방법, 적층형 세라믹 커패시터
EP0575745B1 (fr) Procédé de préparation de niobates de plomb et métal
DE69028770T2 (de) Verfahren zur Herstellung zusammengesetzter Oxide zur Verwendung als Edukt für Ferrite
DE4305170C1 (de) Magnesium und Aluminium enthaltender Spinell, sowie Verfahren zu dessen Synthese und Verwendung des Spinells
JP3250243B2 (ja) ジルコニア系ゾルの製造方法
EP0492334B1 (fr) Procédé de préparation d'une céramique conductrice d'ions
KR950004771B1 (ko) 암모늄 희토류 이중 옥살산염의 제조방법 및 이로부터 얻어진 희토류 산화물
DE60005999T2 (de) Verfahren zur herstellung von seltenerdboraten und verwendung der hergestellten boraten in lumineszenz
DE68909558T2 (de) Verfahren zur Herstellung eines Materials aus gemischten Metalloxiden und eines Körpers aus diesem Material.
CN111377734A (zh) X9r型多层陶瓷电容器介质材料及其制备方法
DE3415324C2 (de) Verfahren zur Herstellung von sinterfähigem Pulver aus γ-LiAl0↓2↓ und dessen Verwendung
JP3149467B2 (ja) 半導体磁器用微粉末の製造方法
WO2021010368A1 (fr) BARIUM TITANYLE D'ACIDE ORGANIQUE SUBSTITUÉ PAR UN ÉLÉMENT Me, SA MÉTHODE DE PRODUCTION ET MÉTHODE DE PRODUCTION DE POUDRE DE MATIÈRE PREMIÈRE CÉRAMIQUE DE TYPE PÉROVSKITE À BASE DE TITANE

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17792881

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17792881

Country of ref document: EP

Kind code of ref document: A1