Membrane with a stable nanosized microstructure and method for producing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-035/00
B01D-069/14
B01J-023/889
B01J-023/83
B01D-067/00
B01D-071/02
B01D-053/86
B01D-069/10
B01J-037/02
B01D-053/22
B01J-023/00
C01B-013/02
B01J-035/06
B01J-023/86
B01J-035/02
C08F-008/00
C08F-008/06
B01D-053/00
출원번호
US-0674949
(2008-08-29)
등록번호
US-8894944
(2014-11-25)
우선권정보
EP-07017111 (2007-08-31)
국제출원번호
PCT/EP2008/007096
(2008-08-29)
§371/§102 date
20110401
(20110401)
국제공개번호
WO2009/027251
(2009-03-05)
발명자
/ 주소
Larsen, Peter Halvor
Linderoth, Søren
출원인 / 주소
Technical University of Denmark
대리인 / 주소
Seed IP Law Group PLLC
인용정보
피인용 횟수 :
19인용 특허 :
3
초록▼
The present invention provides a membrane, comprising in this order a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, characterized in that the electronically and ionically conducting layer is formed from an elect
The present invention provides a membrane, comprising in this order a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, characterized in that the electronically and ionically conducting layer is formed from an electrolyte material, a grain growth inhibitor and/or grain boundary modifier, and a method for producing same.
대표청구항▼
1. A membrane comprising, in order, a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, wherein the electronically and ionically conducting layer is formed from an electrolyte material, a grain growth inhibitor and/
1. A membrane comprising, in order, a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, wherein the electronically and ionically conducting layer is formed from an electrolyte material, a grain growth inhibitor and/or a grain boundary modifier, wherein the electronically and ionically conducting layer comprises Ce1-xMxO2- δ(where M is selected from the group consisting of Ca, Sm, Gd, Sc, Ga and Y, and 0 ≦x≦1);wherein the grain growth inhibitor comprises an oxide selected from the group consisting of Sc2O3, VOx, TaOx, MnOx, NbOx, SrO, CaO, MgO, Bi2O3, LnOx, MgCr2O4, MgTiO3, CaAl2O4, LaAlO3, YbCrO3, ErCrO4, NiTiO3, NiCr2O4, metal carbides, metal nitrides, and mixtures thereof; andwherein the grain boundary modifier comprises an oxide selected from the group consisting of MnOx, VOx, MgCr2O4, CaCrxVyO4, SrCrxVyO4, YbCrO3, ErCrO4, NiTiO3, NiCr2O4, and mixtures thereof. 2. The membrane of claim 1, wherein the first catalyst layer and/or the second catalyst layer comprise a metal. 3. The membrane of claim 2, wherein the metal is selected from the group consisting of Fe1-x-yCrxMy (where M is Ni, Ti, Ce, Mn, Mo, W, Co, La, Y or Al, 0≦x≦1, 0≦y≦1) and Ni-based alloys, and wherein x+y≦1. 4. The membrane of claim 1, wherein the first catalyst layer and/or the second catalyst layer comprise an oxide. 5. The membrane of claim 1, wherein the first and second catalyst layers comprise a catalyst material. 6. The membrane of claim 5, wherein at least one of the first and second catalyst layers comprises a catalyst material selected from the group consisting of (Ma1-xMbx)(Mc1-yMdy)O3- δ, doped ceria or doped zirconia, and mixtures thereof; (where Ma=lanthanides or Y; Mb=earth alkali elements; Mc and Md are one or more elements chosen from the group of transition metals; 0≦x≦1 and 0≦y≦1). 7. The membrane of claim 5, wherein at least one of the first and second catalyst layers comprises a catalyst material selected from the group consisting of Ni, Ni—Fe alloy, Ru, Pt, doped ceria, doped zirconia, MasTi1-xMbxO3-δ (where Ma=Ba, Sr, Ca; Mb=V, Nb, Ta, Mo, W, Th, U; 0≦s≦0.5; 0≦x≦1), LnCr1-xMxO3-δ (where M=Ti, V, Mn, Nb, Mo, W, Th, U; 0≦x≦1), and mixtures thereof. 8. The membrane of claim 1, further comprising a support layer for the first catalyst layer and/or the second catalyst layer. 9. A method of producing the membrane of claim 1, comprising the steps of: providing a first catalyst or catalyst precursor layer;applying an electronically and ionically conducting layer on the first catalyst or catalyst precursor layer;applying a second catalyst or catalyst precursor layer on the electronically and ionically conducting layer to provide a multilayer structure; andsintering the multilayer structure. 10. The method of claim 9, further comprising the step of applying a catalyst material or catalyst precursor material to the first and/or second catalyst or catalyst precursor layer. 11. The method of claim 9, further comprising the step of providing a support layer for the first and/or second catalyst or catalyst precursor layer. 12. The method of claim 9, wherein the sintering is carried out at temperatures of about 700 to 1500° C. 13. A method for separating oxygen from an oxygen-containing mixture, comprising contacting the membrane of claim 1 with the oxygen-containing mixture.
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이 특허에 인용된 특허 (3)
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