JP5283500B2 - 大きい表面積を有する燃料電池用カソード - Google Patents
大きい表面積を有する燃料電池用カソード Download PDFInfo
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Description
− 高い運転温度は、それに応じて耐熱性の材料の使用を必要とする。これは、高い材料費に招いたり、このような燃料電池の稼働耐久時間を短くする。また、高温の運転温度は、例えば自動車等における移動型の使用や、個人での使用を難しくする。
− エネルギー密度が比較的小さい。
− Gd、Sm、Pr、Nd、Er、Yb及び/またはDyでドーピングされた酸化セリウム、及び/または
− Y、Sc、Ca、Mg、Al、Er、Yb、Gdで及び/またはEu乃至Dyの系列から選択される元素でドーピングされた酸化ジルコニウム、及び/または
− La、Sr、Mn、Fe、Co、Cr、Pr、Ba、Ca、Ni、Cu、Ti、YでまたはZr乃至Ceの系列から選択される元素を有する混合酸化物。
先ず、硝酸セリウム(III)4.6g及び硝酸ガドリニウム(III)1.19gを無水エタノール50ml中に溶解する。次いで、12nmの平均直径を有する炭素黒もしくはカーボンブラック1g(Cabot Corporationから“Black Pearls 2000”の名称で商業的に入手可能)を加える。この混合物を、超音波浴中に入れたガラスフラスコ内で2時間均一化する。その後、得られた非常に粘性の高い混合物を、60℃の温度で24時間攪拌もしくは混合する。次いで、蒸発させる。
塩化ジルコニル2g、塩化イットリウム0.15g及び界面活性剤としての2gのBrij76(この商品名で商業的に入手できる表面活性剤)を水中に溶解する。攪拌することによって、透明な溶液が得られる。次いで、この溶液中に含まれるジルコニウム及びイットリウムを析出させるために、適当な水溶液(25重量%)50mlを加える。溶液としては、蒸留水中に溶解したZrOCl2及びYCl3水和物が適しており、この際、最終的には、塩化物塩の割合は2重量%でありそしてZr/Yのモル比は11.5である。こうして得られた懸濁液をフラスコ中で50℃で5時間攪拌し、次いで80℃で三日間攪拌する。次いで濾過することによって、白色の粉末が得られる。この白色の粉末を水及びエタノールで洗浄する。次いで、この洗浄された白色の粉末を、先ず、100℃の温度において炉中で10時間乾燥する。次いで、温度を1分間当たり2℃の率で500℃になるまで高める。500℃において、この乾燥した白色の粉末を2時間か焼する。こうして得られたYSZ1粉末を乳鉢で粉砕する。この粉砕されたYSZ1粉末は、650m2/gの表面積、並びに平均孔径が12Å及び32Åのバイモーダルな孔径分布(図2)を有する。円で形成された曲線は左側の軸を基準とする。この曲線は、各々の孔径画分について1g当たりの吸着された窒素体積量を示す。直線は、右側の軸を基準にする。これは、孔径毎の孔の量を示す。
Claims (4)
- 次の段階、すなわち
−可溶性金属塩、この塩のための溶剤、及びフィラーとしての炭素粒子を含む混合物を調製する段階、ここで前記炭素粒子は、3〜25nmの平均直径を有し、
−炭素粒子及び溶液中に溶解した金属塩を含む前記混合物から、熱処理によって金属酸化物粒子を形成する段階、
−前記金属酸化物粒子から燃焼によって炭素粒子を除去する段階、
−得られた多孔性の金属酸化物粒子を、焼結した電解質層の上に塗工し、そして熱処理して、カソードを得る段階、
を含む、カソードの製造方法。 - −炭素粒子を、酸素含有ガス中で150〜850℃の温度で燃焼することによって、前記粒子から除去し、
−前記多孔性の金属酸化物粒子が表面上に塗工された前記焼結電解質を、ガス中で650〜1200℃の温度において熱処理する、
請求項1の方法。
- 溶剤が、アルコール、ポリアルコール、水またはエタノールである、請求項1または2の方法。
- 塩が、アルコキシド、クエン酸塩、酢酸塩、ハロゲン化物または硝酸塩を含む、請求項1〜3のいずれか一つの方法。
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Application Number | Priority Date | Filing Date | Title |
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DE102005023048.2 | 2005-05-13 | ||
DE102005023048A DE102005023048B4 (de) | 2005-05-13 | 2005-05-13 | Verfahren zur Herstellung eines Kathoden-Elektrolyt-Verbundes und eine Hochtemperatur-Brennstoffzelle |
PCT/DE2006/000734 WO2006119725A1 (de) | 2005-05-13 | 2006-04-27 | Kathode für eine brennstoffzelle mit grosser oberfläche |
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JP2008541359A JP2008541359A (ja) | 2008-11-20 |
JP2008541359A5 JP2008541359A5 (ja) | 2009-06-18 |
JP5283500B2 true JP5283500B2 (ja) | 2013-09-04 |
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JP2008510394A Expired - Fee Related JP5283500B2 (ja) | 2005-05-13 | 2006-04-27 | 大きい表面積を有する燃料電池用カソード |
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US (1) | US20080206606A1 (ja) |
EP (1) | EP1880437B1 (ja) |
JP (1) | JP5283500B2 (ja) |
AT (1) | ATE549761T1 (ja) |
DE (1) | DE102005023048B4 (ja) |
DK (1) | DK1880437T3 (ja) |
WO (1) | WO2006119725A1 (ja) |
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KR20110109104A (ko) * | 2010-03-30 | 2011-10-06 | 삼성전기주식회사 | 금속 산화물-이트리아 안정화 지르코니아 복합체 및 이를 포함하는 고체산화물 연료전지 |
JP6228147B2 (ja) * | 2015-02-18 | 2017-11-08 | 株式会社ノリタケカンパニーリミテド | 固体酸化物形燃料電池用の電極材料とその利用 |
JP6255358B2 (ja) * | 2015-02-18 | 2017-12-27 | 株式会社ノリタケカンパニーリミテド | 固体酸化物形燃料電池用の電極材料とその利用 |
JP6859731B2 (ja) * | 2017-02-07 | 2021-04-14 | 株式会社豊田中央研究所 | 燃料電池カソード用触媒 |
CN110729492A (zh) * | 2019-12-06 | 2020-01-24 | 福州大学 | 一种高性能的纳米结构含钴复合阴极材料的共合成方法 |
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US3792136A (en) * | 1971-11-02 | 1974-02-12 | Atomic Energy Commission | Method for preparing hollow metal oxide microsphere |
US4192907A (en) * | 1978-07-03 | 1980-03-11 | United Technologies Corporation | Electrochemical cell electrodes incorporating noble metal-base metal alloy catalysts |
NL8006774A (nl) * | 1980-12-13 | 1982-07-01 | Electrochem Energieconversie | Brandstofcelelectrode en werkwijze voor het vervaardigen van een brandstofcelelectrode. |
FR2663245B1 (fr) * | 1990-06-13 | 1992-09-18 | Rhone Poulenc Chimie | Composition a base d'alumine pour catalyseur et procede de fabrication. |
JP3262408B2 (ja) * | 1993-05-18 | 2002-03-04 | ペルメレック電極株式会社 | ガス電極の製造方法 |
CN1211312C (zh) * | 1996-07-01 | 2005-07-20 | 宇部兴产株式会社 | 陶瓷复合材料和多孔陶瓷材料及其生产方法 |
JP3297610B2 (ja) * | 1996-10-30 | 2002-07-02 | 京セラ株式会社 | 固体電解質型燃料電池セルの製法 |
DE19757320C2 (de) * | 1997-12-23 | 2001-08-02 | Forschungszentrum Juelich Gmbh | Elektrode mit guter Kohlenmonoxidverträglichkeit für Brennstoffzellen |
JP3403090B2 (ja) * | 1998-09-18 | 2003-05-06 | キヤノン株式会社 | 多孔質構造の金属酸化物、電極構造体、二次電池及びこれらの製造方法 |
DE10033898B4 (de) | 2000-07-12 | 2009-06-18 | Forschungszentrum Jülich GmbH | Hochtemperaturbrennstoffzelle und Brennstoffzellenstapel |
US6752979B1 (en) * | 2000-11-21 | 2004-06-22 | Very Small Particle Company Pty Ltd | Production of metal oxide particles with nano-sized grains |
DE10061375A1 (de) | 2000-12-09 | 2002-11-21 | Forschungszentrum Juelich Gmbh | Herstellung eines Schichtsystems, umfassend wenigstens ein poröses Substrat, eine Anodenfunktions- und eine Elektrolytschicht |
EP1254711A1 (de) * | 2001-05-05 | 2002-11-06 | OMG AG & Co. KG | Edelmetallhaltiger Trägerkatalysator und Verfahren zu seiner Herstellung |
US7077643B2 (en) * | 2001-11-07 | 2006-07-18 | Battelle Memorial Institute | Microcombustors, microreformers, and methods for combusting and for reforming fluids |
DE10208882A1 (de) | 2002-03-01 | 2003-09-18 | Forschungszentrum Juelich Gmbh | Kathode für den Einsatz bei hohen Temperaturen |
JP2004342555A (ja) * | 2003-05-19 | 2004-12-02 | Nissan Motor Co Ltd | 固体電解質型燃料電池用電極材料およびその製造方法、ならびにそれを用いた固体電解質型燃料電池 |
JP2004362849A (ja) * | 2003-06-03 | 2004-12-24 | Ngk Insulators Ltd | 電気化学セル用基板および電気化学セル |
JP2004362911A (ja) * | 2003-06-04 | 2004-12-24 | Nissan Motor Co Ltd | 固体電解質燃料電池および酸素センサ |
UA83400C2 (uk) * | 2003-12-02 | 2008-07-10 | Нанодайнемікс, Інк. | Твердооксидні паливні елементи з керметним електролітом та спосіб їх одержання |
HUE053840T2 (hu) * | 2004-06-25 | 2021-07-28 | Very Small Particle Company Pty Ltd | Eljárás finomszemcsés részecskék elõállítására |
JP5498021B2 (ja) * | 2006-01-09 | 2014-05-21 | サン−ゴバン セラミックス アンド プラスティクス,インコーポレイティド | 多孔質電極を有する燃料電池構成体 |
-
2005
- 2005-05-13 DE DE102005023048A patent/DE102005023048B4/de not_active Withdrawn - After Issue
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2006
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- 2006-04-27 WO PCT/DE2006/000734 patent/WO2006119725A1/de active Search and Examination
- 2006-04-27 AT AT06742277T patent/ATE549761T1/de active
- 2006-04-27 EP EP06742277A patent/EP1880437B1/de not_active Not-in-force
- 2006-04-27 DK DK06742277.4T patent/DK1880437T3/da active
- 2006-04-27 US US11/919,614 patent/US20080206606A1/en not_active Abandoned
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DE102005023048B4 (de) | 2011-06-22 |
DK1880437T3 (da) | 2012-06-25 |
EP1880437A1 (de) | 2008-01-23 |
DE102005023048A1 (de) | 2006-11-16 |
US20080206606A1 (en) | 2008-08-28 |
ATE549761T1 (de) | 2012-03-15 |
JP2008541359A (ja) | 2008-11-20 |
EP1880437B1 (de) | 2012-03-14 |
WO2006119725A1 (de) | 2006-11-16 |
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