WO1999018623A3 - Electrode with a layer of carbon monoxide-sensitive catalyst particles - Google Patents

Electrode with a layer of carbon monoxide-sensitive catalyst particles Download PDF

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Publication number
WO1999018623A3
WO1999018623A3 PCT/DE1998/002953 DE9802953W WO9918623A3 WO 1999018623 A3 WO1999018623 A3 WO 1999018623A3 DE 9802953 W DE9802953 W DE 9802953W WO 9918623 A3 WO9918623 A3 WO 9918623A3
Authority
WO
WIPO (PCT)
Prior art keywords
carbon monoxide
minimum value
precious metal
catalytically active
electrode
Prior art date
Application number
PCT/DE1998/002953
Other languages
German (de)
French (fr)
Other versions
WO1999018623A2 (en
Inventor
Frank Henglein
Wolfgang Unkauf
Andreas Friedrich
Dieter Meissner
Ulrich Stimming
Roland Vogel
Andrea Marmann
Original Assignee
Forschungszentrum Juelich Gmbh
Frank Henglein
Wolfgang Unkauf
Andreas Friedrich
Dieter Meissner
Ulrich Stimming
Roland Vogel
Andrea Marmann
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 Forschungszentrum Juelich Gmbh, Frank Henglein, Wolfgang Unkauf, Andreas Friedrich, Dieter Meissner, Ulrich Stimming, Roland Vogel, Andrea Marmann filed Critical Forschungszentrum Juelich Gmbh
Priority to EP98955370A priority Critical patent/EP1029379A2/en
Priority to AU12239/99A priority patent/AU1223999A/en
Publication of WO1999018623A2 publication Critical patent/WO1999018623A2/en
Publication of WO1999018623A3 publication Critical patent/WO1999018623A3/en

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
    • 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
    • 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

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)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)

Abstract

The invention relates to an electrode with a layer of precious metal particles. The electrode comprises an electroconductive substrate on which catalytically active precious metal particles have been deposited. The average size of the contiguous surfaces of said catalytically active precious metal particles exceeds a minimum value. The minimum value is selected in such a way that the carbon monoxide compatibility of the catalytically active precious metal particles is constant after the minimum value has been exceeded. It has been established that, when this minimum value is not achieved, the carbon monoxide compatibility of the catalytically active precious metal deteriorates. In order to achieve good carbon monoxide compatibility, the minimum value of the contiguous surfaces is used. Contiguous large surfaces within the meaning of the invention can be obtained by means of sufficiently large particles and/or sufficiently high particle densities. In general, a substrate on which particles have been deposited in accordance with the invention can be used to advantage for the catalytic oxidation of carbon monoxide.
PCT/DE1998/002953 1997-10-06 1998-10-05 Electrode with a layer of carbon monoxide-sensitive catalyst particles WO1999018623A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98955370A EP1029379A2 (en) 1997-10-06 1998-10-05 Electrode with a layer of carbon monoxide-sensitive catalyst particles
AU12239/99A AU1223999A (en) 1997-10-06 1998-10-05 Electrode with a layer of carbon monoxide-sensitive catalyst particles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744028A DE19744028C2 (en) 1997-10-06 1997-10-06 Electrode with applied, carbon monoxide sensitive catalyst particles and their use
DE19744028.2 1997-10-06

Publications (2)

Publication Number Publication Date
WO1999018623A2 WO1999018623A2 (en) 1999-04-15
WO1999018623A3 true WO1999018623A3 (en) 1999-06-24

Family

ID=7844689

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/002953 WO1999018623A2 (en) 1997-10-06 1998-10-05 Electrode with a layer of carbon monoxide-sensitive catalyst particles

Country Status (4)

Country Link
EP (1) EP1029379A2 (en)
AU (1) AU1223999A (en)
DE (1) DE19744028C2 (en)
WO (1) WO1999018623A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757320C2 (en) * 1997-12-23 2001-08-02 Forschungszentrum Juelich Gmbh Electrode with good carbon monoxide compatibility for fuel cells
EP1207572A1 (en) * 2000-11-15 2002-05-22 Dr. Sugnaux Consulting Mesoporous electrodes for electrochemical cells and their production method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004222A1 (en) * 1990-07-31 1993-03-04 Physical Sciences Inc. High utilization supported catalytic metal-containing gas-diffusion electrode, process for making it, and cells utilizing it
EP0549543A2 (en) * 1991-12-04 1993-06-30 Tanaka Kikinzoku Kogyo K.K. Process of preparing catalyst supporting highly dispersed metal particles
EP0736921A1 (en) * 1995-04-05 1996-10-09 Johnson Matthey Public Limited Company Electrode comprising first and second catalytic component

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU582059B2 (en) * 1986-12-19 1989-03-09 Dow Chemical Company, The A composite membrane/electrode structure having islands of catalytically active particles
CA2139167C (en) * 1993-12-29 1997-12-02 Keijiro Yamashita Electrode used in electrochemical reaction and fuel cell using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004222A1 (en) * 1990-07-31 1993-03-04 Physical Sciences Inc. High utilization supported catalytic metal-containing gas-diffusion electrode, process for making it, and cells utilizing it
EP0549543A2 (en) * 1991-12-04 1993-06-30 Tanaka Kikinzoku Kogyo K.K. Process of preparing catalyst supporting highly dispersed metal particles
EP0736921A1 (en) * 1995-04-05 1996-10-09 Johnson Matthey Public Limited Company Electrode comprising first and second catalytic component

Also Published As

Publication number Publication date
AU1223999A (en) 1999-04-27
WO1999018623A2 (en) 1999-04-15
EP1029379A2 (en) 2000-08-23
DE19744028A1 (en) 1999-04-15
DE19744028C2 (en) 2000-03-09

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