BR9909616A - Composição aperfeiçoada de um catalisador de oxidação seletiva para uso em células de combustìvel - Google Patents

Composição aperfeiçoada de um catalisador de oxidação seletiva para uso em células de combustìvel

Info

Publication number
BR9909616A
BR9909616A BR9909616-1A BR9909616A BR9909616A BR 9909616 A BR9909616 A BR 9909616A BR 9909616 A BR9909616 A BR 9909616A BR 9909616 A BR9909616 A BR 9909616A
Authority
BR
Brazil
Prior art keywords
fuel cells
platinum
oxidation catalyst
selective oxidation
improved composition
Prior art date
Application number
BR9909616-1A
Other languages
English (en)
Inventor
James R Giallombardo
Emory S De Castro
Robert J Allen
Original Assignee
De Nora Elettrodi Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by De Nora Elettrodi Spa filed Critical De Nora Elettrodi Spa
Publication of BR9909616A publication Critical patent/BR9909616A/pt

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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
    • 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
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6525—Molybdenum
    • 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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • 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
    • H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
    • 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
    • H01M2004/8684—Negative electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • 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]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S420/00—Alloys or metallic compositions
    • Y10S420/90—Hydrogen storage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)

Abstract

Patente de Invenção: <B>''COMPOSIçãO APERFEIçOADA DE UM CATALISADOR DE OXIDAçãO SELETIVA PARA USO EM CéLULAS DE COMBUSTìVEL''<D>. A presente invenção diz respeito às formulações aperfeiçoadas de ligas de platina - molibdênio para uso como catalisadores de anódio. Estes eletrocatalisadores encontram utilidade como um constituinte dos eletrodos de difusão gasosa para uso em células de combustível que operam a menos de 180°C ou em aplicações nas quais o hidrogênio é oxidado na presença de monóxido de carbono ou outras substâncias inibidoras de platina. As novas formulações derivam uma atividade inesperada através da criação de partículas de liga altamente dispersadas de até aproximadamente 300Å em suportes de carbono. A atividade desejada é obtida por meio do controle cuidadoso da razão de platina para molibdênio durante a preparação e a seleção judiciosa de uma carga apropriada de liga no suporte de carbono.
BR9909616-1A 1998-04-14 1999-04-14 Composição aperfeiçoada de um catalisador de oxidação seletiva para uso em células de combustìvel BR9909616A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8172598P 1998-04-14 1998-04-14
US09/271,664 US6165636A (en) 1998-04-14 1999-03-17 Composition of a selective oxidation catalyst for use in fuel cells
PCT/EP1999/002527 WO1999053557A1 (en) 1998-04-14 1999-04-14 Improved composition of a selective oxidation catalyst for use in fuel cells

Publications (1)

Publication Number Publication Date
BR9909616A true BR9909616A (pt) 2000-12-12

Family

ID=26765890

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9909616-1A BR9909616A (pt) 1998-04-14 1999-04-14 Composição aperfeiçoada de um catalisador de oxidação seletiva para uso em células de combustìvel

Country Status (9)

Country Link
US (2) US6165636A (pt)
EP (1) EP1078406A1 (pt)
JP (1) JP2002511639A (pt)
KR (1) KR100431019B1 (pt)
CN (1) CN1189966C (pt)
AU (1) AU745966B2 (pt)
BR (1) BR9909616A (pt)
CA (1) CA2327769A1 (pt)
WO (1) WO1999053557A1 (pt)

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US20040185325A1 (en) * 2000-10-27 2004-09-23 Faguy Peter M Fuel cell having improved catalytic layer
EP1266688A3 (en) 2001-06-14 2003-07-09 Rohm And Haas Company Mixed metal oxide catalyst doped by vapor depositing a metal and mixed metal oxide catalyst prepared by depositing a plurality of films of different elements using physical vapor deposition
US6670300B2 (en) * 2001-06-18 2003-12-30 Battelle Memorial Institute Textured catalysts, methods of making textured catalysts, and methods of catalyzing reactions conducted in hydrothermal conditions
JP4875266B2 (ja) * 2001-09-21 2012-02-15 三菱重工業株式会社 燃料電池用カソード電極触媒およびその製造方法
US7635533B2 (en) * 2002-02-27 2009-12-22 Symyx Solutions, Inc. Fuel cell electrocatalyst of Pt-Mn-Co
AU2003213615A1 (en) * 2002-02-27 2003-09-09 Honda Giken Kogyo Kabushiki Kaisha Fuel cell electrocatalyst of pt-mn-co
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Also Published As

Publication number Publication date
US6379834B1 (en) 2002-04-30
CN1299523A (zh) 2001-06-13
CN1189966C (zh) 2005-02-16
JP2002511639A (ja) 2002-04-16
CA2327769A1 (en) 1999-10-21
AU745966B2 (en) 2002-04-11
EP1078406A1 (en) 2001-02-28
AU3816899A (en) 1999-11-01
KR100431019B1 (ko) 2004-05-12
KR20010071152A (ko) 2001-07-28
US6165636A (en) 2000-12-26
WO1999053557A1 (en) 1999-10-21

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Legal Events

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B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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