JP4376995B2 - 蛍石型セラミック材料 - Google Patents
蛍石型セラミック材料 Download PDFInfo
- Publication number
- JP4376995B2 JP4376995B2 JP08929499A JP8929499A JP4376995B2 JP 4376995 B2 JP4376995 B2 JP 4376995B2 JP 08929499 A JP08929499 A JP 08929499A JP 8929499 A JP8929499 A JP 8929499A JP 4376995 B2 JP4376995 B2 JP 4376995B2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic material
- group
- fluorite
- oxygen
- ceramic
- 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.)
- Expired - Fee Related
Links
- 229910010293 ceramic material Inorganic materials 0.000 title claims description 8
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 title description 4
- 239000010436 fluorite Substances 0.000 title description 3
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 6
- 229910052772 Samarium Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 3
- 150000002602 lanthanoids Chemical class 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- -1 Y 2 Chemical class 0.000 description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910052776 Thorium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000000135 prohibitive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 239000013025 ceria-based material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0251—Physical processing only by making use of membranes
- C01B13/0255—Physical processing only by making use of membranes characterised by the type of membrane
-
- 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
-
- 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
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/26—Electrical properties
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Sustainable Energy (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Catalysts (AREA)
Description
【0001】
酸素透過膜に使用するための蛍石型セラミック材料は、以下の一般式
【0002】
【化2】
【0003】
(式中、
x ≦1およびy ≦1および−1<δ<1であり、そして
A は、Ti、Zr、Hf、CeおよびThからなる群から選択される一種またはそれ以上の金属であり、
B は、Smと、第2a族および第3b族およびその他のランタノイド類からなる群から選択される少なくとも一種の金属である)
を有している。
【0004】
伝統的な酸素導体のためのセラミック材料は、Y 、MgおよびCaのような金属でドープされたジルコニアを基材としている。
【0005】
その他のセラミック酸素導体は、Y 、SmおよびGdのような金属でドープされたセリアを基材としている。これらの材料は、酸素分圧に応じて混合されたイオンおよび電気伝導性を示す。セリアベースの材料は、1000℃未満の温度でジルコニアベースの材料と比較して、より高い伝導性を有しており、このことは、セリアベースのセラミックの市販の酸素分離、燃料電池用途および触媒のための可能性を構成している。しかしながら、純粋なセリアおよび純粋なドーパントの価格は、より広範な商品化に対しては法外である。さらに、代表的に使用される純粋な混合酸化物は、非常に処理しにくくそして緻密なセラミック成分に焼結するのが非常に困難である。
【0006】
本発明は、高温または中間温度で高い酸素イオン伝導性または混合酸素イオン伝導性および電気伝導性を備えた蛍石構造を有する新規のセラミック材料を提供する。
【0007】
本発明によれば、この新規の材料は、以下の一般式
【0008】
【化3】
【0009】
(式中、
x ≦1、y ≦1および−1<δ<1であり、そして
A は、Ti、Zr、Hf、CeおよびThからなる群から選択される一種またはそれ以上の金属であり、
B は、第2a族、第3b族およびその他のランタノイド類からなる群から選択される少なくとも二種の金属である)
を有している。
【0010】
Ce含有蛍石は、部分的に精製されたバストネス石(bastnasite)鉱物を基材とする安価なCe濃縮物で純粋なCe原料を置き換えることによって製造される。一般式においてB で示される純粋なドーパントの価格は、より広範な商品化に対して法外なので、これらの成分は、本発明によれば、純粋でない部分的に精製されたSm、GdおよびY を含有する混合酸化物で置き換えられる。
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8021098P | 1998-03-31 | 1998-03-31 | |
US60/080210 | 1998-03-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11314967A JPH11314967A (ja) | 1999-11-16 |
JP4376995B2 true JP4376995B2 (ja) | 2009-12-02 |
Family
ID=22155949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP08929499A Expired - Fee Related JP4376995B2 (ja) | 1998-03-31 | 1999-03-30 | 蛍石型セラミック材料 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5994254A (ja) |
EP (1) | EP0947487A1 (ja) |
JP (1) | JP4376995B2 (ja) |
KR (1) | KR100378863B1 (ja) |
AU (1) | AU2252299A (ja) |
CA (1) | CA2266769C (ja) |
NO (1) | NO991550L (ja) |
RU (1) | RU2237038C2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1445235B1 (en) * | 2003-02-05 | 2012-03-07 | Haldor Topsoe A/S | Process for treatment of synthesis gas |
ES2392872B1 (es) * | 2011-06-01 | 2013-10-18 | Instalaciones Inabensa, S.A. | Composición para su uso en membranas permeables al oxígeno. |
CN102605198B (zh) * | 2012-01-13 | 2013-09-25 | 东北大学 | 一种氟碳铈矿的分解方法 |
KR101582551B1 (ko) * | 2014-06-17 | 2016-01-05 | 한국세라믹기술원 | 희토류가 저감된 고온환경 열차폐용 저열전도성 복합산화물 세라믹스 및 그 제조방법 |
RU2687681C1 (ru) * | 2018-06-25 | 2019-05-15 | Акционерное общество "Научно-исследовательский институт "Феррит-Домен" | Керамический материал |
RU2741920C1 (ru) * | 2020-06-29 | 2021-01-29 | Федеральное государственное бюджетное учреждение науки Ордена Трудового Красного Знамени Институт химии силикатов им. И.В. Гребенщикова Российской академии наук (ИХС РАН) | Способ жидкофазного синтеза наноструктурированного керамического материала в системе CeO2 - Sm2O3 для создания электролита твердооксидного топливного элемента |
RU2751917C1 (ru) * | 2020-10-07 | 2021-07-20 | Федеральное государственное бюджетное учреждение науки Институт химии твердого тела и механохимии Сибирского отделения Российской академии наук | Металлокерамический композит на основе серебра для селективных кислородных мембран и способ его получения |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5426690B1 (ja) * | 1969-10-27 | 1979-09-05 | ||
GB2114967B (en) * | 1982-02-03 | 1985-08-29 | Nat Res Dev | Sinterable fluorite oxide ceramics |
US5001021A (en) * | 1989-12-14 | 1991-03-19 | International Fuel Cells Corporation | Ceria electrolyte composition |
US5665482A (en) * | 1995-01-10 | 1997-09-09 | Tosoh Corporation | Fluorite structure type ceria type solid electrolyte |
-
1999
- 1999-03-12 EP EP99104947A patent/EP0947487A1/en not_active Withdrawn
- 1999-03-15 US US09/267,360 patent/US5994254A/en not_active Expired - Lifetime
- 1999-03-24 CA CA002266769A patent/CA2266769C/en not_active Expired - Fee Related
- 1999-03-26 KR KR10-1999-0010424A patent/KR100378863B1/ko not_active IP Right Cessation
- 1999-03-30 JP JP08929499A patent/JP4376995B2/ja not_active Expired - Fee Related
- 1999-03-30 NO NO991550A patent/NO991550L/no not_active Application Discontinuation
- 1999-03-30 RU RU99106162/03A patent/RU2237038C2/ru not_active IP Right Cessation
- 1999-03-30 AU AU22522/99A patent/AU2252299A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2252299A (en) | 1999-10-14 |
EP0947487A1 (en) | 1999-10-06 |
JPH11314967A (ja) | 1999-11-16 |
CA2266769C (en) | 2006-02-07 |
US5994254A (en) | 1999-11-30 |
CA2266769A1 (en) | 1999-09-30 |
NO991550D0 (no) | 1999-03-30 |
NO991550L (no) | 1999-10-01 |
KR19990078284A (ko) | 1999-10-25 |
KR100378863B1 (ko) | 2003-04-07 |
RU2237038C2 (ru) | 2004-09-27 |
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