BR0201926A - Processo para preparação de um catalisador anodo para células combustìveis e o catalisador anodo preparado a partir deste - Google Patents

Processo para preparação de um catalisador anodo para células combustìveis e o catalisador anodo preparado a partir deste

Info

Publication number
BR0201926A
BR0201926A BR0201926-4A BR0201926A BR0201926A BR 0201926 A BR0201926 A BR 0201926A BR 0201926 A BR0201926 A BR 0201926A BR 0201926 A BR0201926 A BR 0201926A
Authority
BR
Brazil
Prior art keywords
catalyst
suspension
anode catalyst
support material
preparing
Prior art date
Application number
BR0201926-4A
Other languages
English (en)
Inventor
Karsten Ruth
Peter Biberbach
Karls-Anton Starz
Ralph Mcintosh
Original Assignee
Omg Ag & Co Kg
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 Omg Ag & Co Kg filed Critical Omg Ag & Co Kg
Publication of BR0201926A publication Critical patent/BR0201926A/pt

Links

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
    • H01M4/92—Metals of platinum group
    • H01M4/928—Unsupported catalytic particles; loose particulate catalytic materials, e.g. in fluidised state
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • 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
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/462—Ruthenium
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

"PROCESSO PARA PREPARAçãO DE UM CATALISADOR ANODO PARA CéLULAS COMBUSTìVEIS E O CATALISADOR ANODO PREPARADO A PARTIR DESTE". A invenção proporciona um processo para a preparação de um catalisador de platina-rutênio e o catalisador preparado a partir deste. O catalisador pode ser suportado por sobre um material suporte na forma de pó ou pode ser também não suportado. Para preparar o catalisador suportado, o material suporte é suspenso em água e a suspensão e aquecida no máximo até o ponto de ebulição. Enquanto mantendo a temperatura da suspensão a mesma, soluções de ácido hexacloroplatínico e de cloreto de rutênio são em seguida acrescentadas à suspensão, e em seguida o pH da suspensão é aumentado até um valor entre 6,5 e 10 mediante adição de uma solução alcalina e os metais nobres são desse modo precipitados por sobre o material suporte. Posteriormente, um ou mais ácidos orgânicos carboxílicos e/ou seus sais são acrescentados à suspensão e o catalisador é reduzido quimicamente, lavado, secado e opcionalmente subseq³entemente calcinado sob uma atmosfera inerte ou redutora a uma temperatura entre 300 e 1000 <198>C. O catalisador é caracterizado por uma alta tolerância ao envenenamento por monóxido de carbono na célula combustível.
BR0201926-4A 2001-05-23 2002-05-23 Processo para preparação de um catalisador anodo para células combustìveis e o catalisador anodo preparado a partir deste BR0201926A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01112536A EP1266687A1 (de) 2001-05-23 2001-05-23 Verfahren zur Herstellung eines Anodenkatalysators für PEM-Brennstoffzellen und damit hergestellter Anodenkatalysator

Publications (1)

Publication Number Publication Date
BR0201926A true BR0201926A (pt) 2003-04-22

Family

ID=8177513

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0201926-4A BR0201926A (pt) 2001-05-23 2002-05-23 Processo para preparação de um catalisador anodo para células combustìveis e o catalisador anodo preparado a partir deste

Country Status (8)

Country Link
US (1) US6797667B2 (pt)
EP (1) EP1266687A1 (pt)
JP (1) JP4401059B2 (pt)
KR (1) KR100879121B1 (pt)
AT (1) ATE314141T1 (pt)
BR (1) BR0201926A (pt)
CA (1) CA2387379C (pt)
DE (1) DE60208262T2 (pt)

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Also Published As

Publication number Publication date
ATE314141T1 (de) 2006-01-15
US20030017378A1 (en) 2003-01-23
JP2003017075A (ja) 2003-01-17
CA2387379A1 (en) 2002-11-23
DE60208262T2 (de) 2006-12-07
EP1266687A1 (de) 2002-12-18
JP4401059B2 (ja) 2010-01-20
KR100879121B1 (ko) 2009-01-19
CA2387379C (en) 2012-04-10
KR20020090877A (ko) 2002-12-05
DE60208262D1 (de) 2006-02-02
US6797667B2 (en) 2004-09-28

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