JP4786453B2 - 燃料電池カソード用触媒、これを含む膜−電極接合体及び燃料電池システム - Google Patents
燃料電池カソード用触媒、これを含む膜−電極接合体及び燃料電池システム Download PDFInfo
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- JP4786453B2 JP4786453B2 JP2006206727A JP2006206727A JP4786453B2 JP 4786453 B2 JP4786453 B2 JP 4786453B2 JP 2006206727 A JP2006206727 A JP 2006206727A JP 2006206727 A JP2006206727 A JP 2006206727A JP 4786453 B2 JP4786453 B2 JP 4786453B2
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- catalyst
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- DPZVOQSREQBFML-UHFFFAOYSA-N 3h-pyrrolo[3,4-c]pyridine Chemical compound C1=NC=C2CN=CC2=C1 DPZVOQSREQBFML-UHFFFAOYSA-N 0.000 description 1
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- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
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- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- NQZFAUXPNWSLBI-UHFFFAOYSA-N carbon monoxide;ruthenium Chemical group [Ru].[Ru].[Ru].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-] NQZFAUXPNWSLBI-UHFFFAOYSA-N 0.000 description 1
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- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229940082569 selenite Drugs 0.000 description 1
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 1
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- SITVSCPRJNYAGV-UHFFFAOYSA-L tellurite Chemical compound [O-][Te]([O-])=O SITVSCPRJNYAGV-UHFFFAOYSA-L 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
-
- 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
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/921—Alloys or mixtures with metallic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8814—Temporary supports, e.g. decal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
- H01M4/8835—Screen printing
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- 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
Description
Mo(CO)6及びRu3(CO)12及びTeをm−キシレン中で反応させた後、m−キシレンを全て蒸発させた後、温度200℃の水素雰囲気下で焼成してRu−Mo−Teブラック粉末触媒を製造した。ここで、Ru、Mo、Teのモル比は58:21:21であった。
Mo(CO)6及びRu3(CO)12をアセトンに溶解させた後、アセトンを全て蒸発させた。得られた混合物を70℃で乾燥させた後アセトンに溶解したH2TeO3を添加した。この混合物を、200℃の真空雰囲気で乾燥させた後、乾燥生成物を温度250℃の水素雰囲気下で焼成してRu−Mo−Teブラック粉末触媒を製造した。ここで、Ru、Mo、Teのモル比は63:24:13であった。
Mo(CO)6、Ru3(CO)12及び硫黄Sをm−キシレンで反応させた後、m−キシレンを全て蒸発させた。得られた混合物を200℃で乾燥させてRu−Mo−Sブラック粉末触媒を製造した。
Mo(CO)6及びRu3(CO)12をアセトンに溶解させた後、アセトンを全て蒸発させた。得られた混合物を70℃で乾燥させた後アセトンに溶解したH2SeO3(亜セレン酸)を添加した。この混合物を、200℃の真空雰囲気で乾燥させた後、乾燥生成物を 温度250℃の水素雰囲気下で焼成させてRu−Mo−Seブラック粉末触媒を製造した。
次に、前記実施例1〜実施例2及び比較例1〜比較例2により製造された触媒を5wt%−Nafion/H2O/2−プロパノール溶液(Solution Technology Inc.、EW1100)とそれぞれ混合して、スラリーを製造した。このスラリーをテトラフルオロエチレン(TEFLON(登録商標))フィルムにスクリーン印刷し、乾燥して触媒層を形成した。この触媒層を高分子電解質膜に位置させた後、200℃で200kgf/cm2の圧力で3分間熱圧着して、前記高分子電解質膜上に4mg/cm2のローディング量になるようにカソード電極を形成した。
5 酸化剤供給部
7 スタック
9 燃料タンク
11 燃料ポンプ
13 空気ポンプ
19 電気発生部
21 膜−電極接合体
23、25 セパレータ
100 燃料電池システム
Claims (6)
- Ru、M及びTe(ここでMはMo、Wまたはこれらの合金である)からなる合金である燃料電池カソード用触媒であって、
前記Ru、M及びTeのモル比は10〜95:5〜40:0.1〜50であることを特徴とする、燃料電池カソード用触媒。 - 前記触媒は、1nm〜25nmの平均粒径を持つことを特徴とする、請求項1に記載の燃料電池カソード用触媒。
- 互いに対向して位置するアノード電極及びカソード電極;及び
前記アノード電極とカソード電極との間に位置する高分子電解質膜を含み、
前記カソード電極は、Ru、M及びTe(ここでMはMo、Wまたはこれらの合金である)からなる合金である触媒を含み、
前記Ru、M及びTeのモル比は10〜95:5〜40:0.1〜50であることを特徴とする、燃料電池用膜−電極接合体。 - 前記触媒は、1nm〜25nmの平均粒径を持つことを特徴とする、請求項3に記載の燃料電池用膜−電極接合体。
- 互いに対向して位置するアノード電極及びカソード電極、及び前記アノード電極とカソード電極との間に位置する高分子電解膜を含む少なくとも一つ以上の膜−電極接合体、及び前記膜−電極接合体の両面に存在するセパレータを含む少なくとも一つの電気発生部;
燃料を前記電気発生部に供給する燃料供給部;及び
酸化剤を前記電気発生部に供給する酸化剤供給部を含み、
前記カソード電極は、Ru、M及びTe(ここでMはMo、Wまたはこれらの合金である)からなる合金である触媒を含み、
前記Ru、M及びTeのモル比は10〜95:5〜40:0.1〜50であることを特徴とする、燃料電池システム。 - 前記触媒は、1nm〜25nmの平均粒径を持つことであることを特徴とする、請求項5に記載の燃料電池システム。
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KR100684853B1 (ko) | 2005-11-30 | 2007-02-20 | 삼성에스디아이 주식회사 | 연료 전지용 캐소드 촉매, 이를 포함하는 연료 전지용막-전극 어셈블리 및 연료 전지 시스템 |
KR100709198B1 (ko) * | 2006-04-28 | 2007-04-18 | 삼성에스디아이 주식회사 | 직접 산화형 연료 전지용 스택 및 이를 포함하는 직접산화형 연료 전지 시스템 |
US7575824B2 (en) * | 2006-07-26 | 2009-08-18 | Los Alamos National Security, Llc | Method of improving fuel cell performance by removing at least one metal oxide contaminant from a fuel cell electrode |
JP2008287927A (ja) * | 2007-05-15 | 2008-11-27 | Mitsubishi Chemicals Corp | RuTe2を含む燃料電池用触媒と、この燃料電池用触媒を用いた燃料電池用電極材料及び燃料電池 |
JP4530003B2 (ja) * | 2007-07-12 | 2010-08-25 | トヨタ自動車株式会社 | 燃料電池用電極触媒、及びそれを用いた固体高分子型燃料電池 |
JP5056236B2 (ja) * | 2007-07-24 | 2012-10-24 | トヨタ自動車株式会社 | 燃料電池用電極触媒、酸素還元型触媒の性能評価方法、及びそれを用いた固体高分子型燃料電池 |
JP5056257B2 (ja) * | 2007-08-09 | 2012-10-24 | トヨタ自動車株式会社 | 燃料電池用電極触媒、酸素還元型触媒の性能評価方法、及びそれを用いた固体高分子型燃料電池 |
JP5056256B2 (ja) * | 2007-08-09 | 2012-10-24 | トヨタ自動車株式会社 | 燃料電池用電極触媒、酸素還元型触媒の性能評価方法、及びそれを用いた固体高分子型燃料電池 |
JP5056258B2 (ja) * | 2007-08-09 | 2012-10-24 | トヨタ自動車株式会社 | 燃料電池用電極触媒、酸素還元型触媒の性能評価方法、及びそれを用いた固体高分子型燃料電池 |
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