JP5167033B2 - セリア及びチタン酸ストロンチウムに基づく電極 - Google Patents
セリア及びチタン酸ストロンチウムに基づく電極 Download PDFInfo
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- JP5167033B2 JP5167033B2 JP2008219432A JP2008219432A JP5167033B2 JP 5167033 B2 JP5167033 B2 JP 5167033B2 JP 2008219432 A JP2008219432 A JP 2008219432A JP 2008219432 A JP2008219432 A JP 2008219432A JP 5167033 B2 JP5167033 B2 JP 5167033B2
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Description
(a) 電子伝導相の粉末を分散しそしてこの分散物にバインダーを加えることによってスラリーを用意し、この際、前記粉末は、ニオブドープドチタン酸ストロンチウム、バナジウムドープドチタン酸ストロンチウム、タンタルドープドチタン酸ストロンチウム、及びこれらの混合物からなる群から選択され、
(b) 段階(a)のスラリーを焼結し、
(c) セリアの前駆体溶液を用意し、この溶液は溶媒及び界面活性剤を含み、
(d) 段階(b)で得られた焼結された構造体を、段階(c)の前駆体溶液で含浸し、(e) 段階(d)で得られた構造体をか焼に付し、そして
(f) 段階(d)〜(e)を少なくとも一回行う、
段階を含む方法によって得ることができるセラミックアノード構造体を提供する。
(a) 電子伝導相の粉末を分散し、そしてこの分散物にバインダーを加えることによってスラリーを用意し、この際、前記粉末は、ニオブドープドチタン酸ストロンチウム、バナジウムドーブドチタン酸ストロンチウム、タンタルドープドチタン酸ストロンチウム、及びこれらの混合物からなる群から選択され、
(b) 前記電子伝導相スラリーを電解質と組み合わせ、
(c) 得られた多層構造体を焼結し、
(d) セリアの前駆体溶液を用意し、この溶液は溶媒及び界面活性剤を含み、
(e) 段階(c)で得られた焼結された多層構造体を、段階(d)の前駆体溶液で含浸し、
(f) 段階(e)で得られた構造体をか焼に付し、及び
(g) 段階(e)〜(f)を少なくとも一回行う、
段階を含む方法によって得ることができるセラミックアノード構造体も包含する。
前記含浸及びか焼段階を少なくとも一回、好ましくは最大五回まで行うことによって、より多くの量のセリアが多層構造体中の粒子に浸透しそしてこれを覆うことが保証される。
表1: 同じ予備焼結した電解質(200μmYSZ)バッチを有する対称電池で測定した様々な電極組成についての分極抵抗RP(Ωcm2)。STN=Sr0.94Ti0.9Nb0.1O3、CGO=Ce0.8Gd0.2O1.9(含浸されたもの)。LT=温度を850℃に上げる前の650℃での初期測定。測定は、含湿H2(約3%H2O)中で行った。
表2: 76重量%NbドープドSrTiO3及び24重量%CGOを有するサンプルの、XRDから計算CGO粒子の粒度及びBET比表面積(SSA)。全か焼時間は括弧内に示す。
全セラミックSOFCアノードの製造に使用した浸透溶液を調製するために以下の手順を使用した。
1. 0.8モル/リットルの硝酸セリウム及び0.2モル/リットルの硝酸ガドリニウムを含むエタノール溶液(約10gのエタノール)を調製した。
2. 1gのPluronic P123界面活性剤を前記硝酸塩溶液中に室温で溶解した。
3. (任意) 硝酸セリウム及び硝酸ガドリニウムを含む溶液と、Pluronic P123界面活性剤を含む溶液の二つの溶液を別々に調製することができる。上記の化学種がそれぞれの溶媒中に完全に溶解したらこれらの溶液を混合することができる。エタノールばかりではく、上記硝酸塩及び界面活性剤を溶解することができる他の溶媒(または複数種の溶媒の混合物)も使用することができる。例えば水などがある。
4. (任意)浸透溶液の濡れを向上するために追加の界面活性剤(例えばTriton X−45またはTriton X−100)を加えることができる。一つの実験では、硝酸塩及びPluronic P123を含む溶液に約0.3gのTriton X−100を加えた。
5. 多孔性電子伝導性相の基礎構造体を作製する。この電子伝導相は、ニオブ(Nb)ドープドSrTiO3(公称組成=Sr(1−x/2)0.99Ti1−xNbxO3)からなる。前記チタン酸ストロンチウム材料において、Nbの代わりにバナジウム(V)またはタンタル(Ta)も使用することができる。
6. 前記基礎材料のためスラリーは、NbドープドSrTiO3の粉末を分散することによって調製した。分散後にバインダーを加え、そしてこのスラリーを、予備焼結したYSZテープ(TZ8Y(Tosoh)、200μm厚)上にスプレー塗布した。
7. 電解質層のスプレー塗布の後に、得られた半電池を空気中でまたはH2/N2の混合物中で1200〜1300℃で焼結した。
8. 前記アノード基礎構造体を作製した後、調製した前記浸透液を、このアノード基礎材料の開口した多孔系中に含浸する。浸透は減圧下に行う。
9. 浸透後、得られた電池を空気中で350℃でか焼する。この熱処理は界面活性剤を除去し、そして目的の酸化物(Ce0.8Gd0.2O1.9)を形成する。
10.(任意) 段階8〜9を複数回繰り返して、ドープド酸化セリウム相の量を増加させる。
例2
例1と同じ方法であるが、但し、段階6を次のように若干変更する。すなわち、この場合、段階6のスラリーは、約1:1の体積比でNbドープドSrTiO3及び8モルイットリア安定化酸化ジルコニウムを含むものであった。
例3
例1と同じ方法であるが、但し段階6を次のように若干変更する。すなわち、この場合、段階6のスラリーは、約1:1の体積比でNbドープドSrTiO3及びGdドープドCeO2を含むものであった。
Claims (15)
- 次の段階、すなわち
(a) 電子伝導相の粉末を分散し、そしてこの分散物にバインダーを加えることによってスラリーを用意し、この際、前記粉末は、ニオブドープドチタン酸ストロンチウム、バナジウムドープドチタン酸ストロンチウム、タンタルドープドチタン酸ストロンチウム及びこれらの混合物からなる群から選択され、
(b) 段階(a)のスラリーを焼結し、
(c) セリアの前駆体溶液を用意し、この溶液は溶媒及び界面活性剤を含み、
(d) 段階(b)で得られた焼結された構造体を段階(c)の前駆体溶液で含浸し、
(e) 段階(d)で生じた構造体をか焼に付し、及び
(f) 段階(d)〜(e)を少なくとも一回行う、
段階を含む、セラミックアノード構造体の製造方法。 - 次の段階、すなわち
(a) 電子伝導性成分の粉末を分散し、そしてこの分散物にバインダーを加えることによってスラリーを用意し、この際、前記粉末は、ニオブドープドチタン酸ストロンチウム、バナジウムドープドチタン酸ストロンチウム、及びタンタルドープドチタン酸ストロンチウムからなる群から選択され、
(b) 上記電子伝導相スラリーを電解質と組み合わせ、
(c) 得られた多層構造体を焼結し、
(d) セリアの前駆体溶液を用意し、この溶液は溶媒及び界面活性剤を含み、
(e) 段階(c)で得られた焼結された多層構造体を段階(d)の前駆体溶液で含浸し、
(f) 段階(e)で得られた構造体をか焼に付し、及び
(g) 段階(e)〜(f)を少なくとも一回行う、
段階を含む、セラミックアノード構造体の製造方法。 - 段階(b)が、上記電子伝導相スラリーをテープキャストすることによって電子伝導相の層を形成し、そしてその上に電解質を載せることを含む、請求項2の方法。
- 段階(a)の電子伝導相が、最初に追加的な酸素イオン伝導相、または混合酸素イオン−電子伝導相も含む、請求項1または2の方法。
- 界面活性剤が、アニオン界面活性剤、ノニオン界面活性剤、カチオン界面活性剤及び双性イオン性界面活性剤からなる群から選択される、請求項1〜4のいずれか一つの方法。
- 界面活性剤がノニオン界面活性剤である、請求項5の方法。
- セリアの前駆体溶液が、Gd、Sm、Y、Ca及びこれらの混合物からなる群から選択されるドーパントを含む、請求項1〜6のいずれか一つの方法。
- 焼結された構造体の含浸及びか焼段階が最大5回まで行われる、請求項1〜7のいずれか一つの方法。
- か焼段階が空気中で250℃またはそれ未満の温度で行われる、請求項1〜8のいずれか一つの方法。
- セリアの前駆体溶液とニッケル前駆体溶液とを一緒にすることを更に含み、この際、結果生ずるアノード中のニッケルの全量が10重量%未満である、請求項1〜9のいずれか一つの方法。
- 請求項1の方法によって得ることができる、セラミックアノード構造体。
- 請求項2の方法によって得ることができる、セラミックアノード構造体。
- 請求項11のアノード構造体を含む固体酸化物燃料電池。
- 酸素分離膜、水素分離膜、電解セル及び電気化学的煙道ガス清浄用セルにおける電極としての、請求項11または12のアノード構造体の使用。
- アノード支持型SOFC中のアノード支持体としての、請求項11または12のアノード構造体の使用。
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Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10615444B2 (en) | 2006-10-18 | 2020-04-07 | Bloom Energy Corporation | Anode with high redox stability |
WO2008048445A2 (en) * | 2006-10-18 | 2008-04-24 | Bloom Energy Corporation | Anode with remarkable stability under conditions of extreme fuel starvation |
EP2244322A1 (en) * | 2009-04-24 | 2010-10-27 | Technical University of Denmark | Composite oxygen electrode and method for preparing same |
US8617763B2 (en) | 2009-08-12 | 2013-12-31 | Bloom Energy Corporation | Internal reforming anode for solid oxide fuel cells |
US20140287341A1 (en) | 2011-10-24 | 2014-09-25 | Technical University Of Denmark | Modified anode/electrolyte structure for a solid oxide electrochemical cell and a method for making said structure |
IN2014CN03490A (ja) * | 2011-10-24 | 2015-10-09 | Univ Denmark Tech Dtu | |
EP2836625B1 (en) | 2012-04-13 | 2017-12-06 | Danmarks Tekniske Universitet | High performance reversible electrochemical cell for h2o electrolysis or conversion of co2 and h2o to fuel |
US9525179B2 (en) | 2013-03-13 | 2016-12-20 | University Of Maryland, College Park | Ceramic anode materials for solid oxide fuel cells |
EP2814100A1 (en) | 2013-06-12 | 2014-12-17 | Topsøe Fuel Cell A/S | Impregnation of an electrochemical cell cathode backbone |
US10480083B2 (en) * | 2014-07-28 | 2019-11-19 | Nippon Shokubai Co., Ltd. | Steam electrolysis cell |
CN106876719A (zh) * | 2015-12-12 | 2017-06-20 | 中国科学院大连化学物理研究所 | 一种高温燃料电池的阳极材料及其制备和应用 |
RU2662227C2 (ru) * | 2016-04-20 | 2018-07-25 | Федеральное государственное бюджетное учреждение науки Институт электрофизики Уральского отделения Российской академии наук (ИЭФ УрО РАН) | Высокоактивная многослойная тонкопленочная керамическая структура активной части элементов твердооксидных устройств |
US10622628B2 (en) | 2016-05-25 | 2020-04-14 | Saint-Gobain Ceramics & Plastics, Inc. | Electrode comprising heavily-doped ceria |
KR101743935B1 (ko) * | 2016-09-07 | 2017-06-08 | 한국과학기술연구원 | 합금촉매를 담지한 전기분해용 고체산화물셀 연료극의 제조방법 |
GB2557344B (en) * | 2016-12-08 | 2021-05-19 | Ceres Ip Co Ltd | Anode |
US10680251B2 (en) | 2017-08-28 | 2020-06-09 | Bloom Energy Corporation | SOFC including redox-tolerant anode electrode and system including the same |
KR102288962B1 (ko) * | 2020-01-10 | 2021-08-11 | 전남대학교산학협력단 | Ctab 안정화제를 이용한 다종양이온 산화물촉매가 함침된 다공성 전극의 제조방법 |
CN113026147B (zh) * | 2021-03-17 | 2022-03-11 | 电子科技大学 | 一种用于高效分离铀的磷酸氢钙纳米纤维的制备方法 |
US20230067972A1 (en) * | 2021-08-26 | 2023-03-02 | Proof Energy Inc. | Solid oxide fuel cells and methods of forming thereof |
US20230092683A1 (en) * | 2021-09-10 | 2023-03-23 | Utility Global, Inc. | Method of making an electrode |
KR20220093053A (ko) * | 2022-06-16 | 2022-07-05 | 한국세라믹기술원 | 초음파 스프레이법을 이용 미세구조 제어를 통한 고활성 전극, 이의 제조방법 및 이를 포함하는 고체산화물 연료전지 |
CN115950940B (zh) * | 2023-03-10 | 2023-06-16 | 华北理工大学 | 以钛酸锶为敏感电极的so2传感器及其制备方法与应用 |
CN117702190B (zh) * | 2024-02-06 | 2024-04-16 | 成都中核高通同位素股份有限公司 | 一种药用级钇-90的制备方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3460991A (en) * | 1967-08-16 | 1969-08-12 | Gen Electric | Fuel cell with tubular electrodes and solid electrolyte |
US4490444A (en) * | 1980-12-22 | 1984-12-25 | Westinghouse Electric Corp. | High temperature solid electrolyte fuel cell configurations and interconnections |
US4849254A (en) * | 1988-02-25 | 1989-07-18 | Westinghouse Electric Corp. | Stabilizing metal components in electrodes of electrochemical cells |
US5021304A (en) * | 1989-03-22 | 1991-06-04 | Westinghouse Electric Corp. | Modified cermet fuel electrodes for solid oxide electrochemical cells |
DK167163B1 (da) | 1991-02-13 | 1993-09-06 | Risoe Forskningscenter | Fastoxidbraendselscelle til oxidation af ch4 |
RU2125324C1 (ru) * | 1996-11-11 | 1999-01-20 | Горина Лилия Федоровна | Способ изготовления единичного высокотемпературного топливного элемента и его компонентов: катода, электролита, анода, токопрохода, интерфейсного и электроизолирующего слоев |
US6752979B1 (en) | 2000-11-21 | 2004-06-22 | Very Small Particle Company Pty Ltd | Production of metal oxide particles with nano-sized grains |
US20040018409A1 (en) | 2002-02-28 | 2004-01-29 | Shiqiang Hui | Solid oxide fuel cell components and method of manufacture thereof |
US7670711B2 (en) * | 2002-05-03 | 2010-03-02 | Battelle Memorial Institute | Cerium-modified doped strontium titanate compositions for solid oxide fuel cell anodes and electrodes for other electrochemical devices |
US7025943B2 (en) * | 2002-05-15 | 2006-04-11 | The Curators Of The University Of Missouri | Method for preparation of nanometer cerium-based oxide particles |
CA2509498A1 (en) | 2002-12-16 | 2004-07-22 | The Trustees Of The University Of Pennsylvania | High performance ceramic anodes and method of producing the same |
RU2236722C1 (ru) * | 2003-06-10 | 2004-09-20 | Мятиев Ата Атаевич | Электрод-электролитная пара на основе двуокиси церия (варианты), способ ее изготовления (варианты) и органогель |
US7604892B2 (en) * | 2003-06-27 | 2009-10-20 | National Research Council Of Canada | Y and Nb-doped SrTiO3 as a mixed conducting anode for solid oxide fuel cells |
US20050053819A1 (en) * | 2003-07-18 | 2005-03-10 | Paz Eduardo E. | Solid oxide fuel cell interconnect with catalyst coating |
JP2005157321A (ja) | 2003-11-07 | 2005-06-16 | Renesas Technology Corp | 半導体装置および半導体装置の試験方法 |
WO2005064717A1 (en) * | 2003-12-24 | 2005-07-14 | Pirelli & C. S.P.A. | Solid oxide fuel cell |
US7468218B2 (en) | 2004-05-07 | 2008-12-23 | Battelle Memorial Institute | Composite solid oxide fuel cell anode based on ceria and strontium titanate |
CA2569866C (en) * | 2004-06-10 | 2011-05-17 | Risoe National Laboratory | Solid oxide fuel cell |
EP1875534A4 (en) | 2005-04-21 | 2011-09-14 | Univ California | PRELIMINARY INFILTRATION AND COATING PROCESS |
DK1760817T3 (da) * | 2005-08-31 | 2013-10-14 | Univ Denmark Tech Dtu | Reversibel fastoxidbrændselscellestak og fremgangsmåde til fremstilling af samme |
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