FR2409792A1 - IMPROVED PLATE CATALYST AND ITS MANUFACTURING PROCESS - Google Patents

IMPROVED PLATE CATALYST AND ITS MANUFACTURING PROCESS

Info

Publication number
FR2409792A1
FR2409792A1 FR7833040A FR7833040A FR2409792A1 FR 2409792 A1 FR2409792 A1 FR 2409792A1 FR 7833040 A FR7833040 A FR 7833040A FR 7833040 A FR7833040 A FR 7833040A FR 2409792 A1 FR2409792 A1 FR 2409792A1
Authority
FR
France
Prior art keywords
catalyst
manufacturing process
platinum
improved plate
carbon
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7833040A
Other languages
French (fr)
Other versions
FR2409792B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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
Priority claimed from US05/854,285 external-priority patent/US4137373A/en
Priority claimed from US05/854,284 external-priority patent/US4137372A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of FR2409792A1 publication Critical patent/FR2409792A1/en
Application granted granted Critical
Publication of FR2409792B1 publication Critical patent/FR2409792B1/en
Expired legal-status Critical Current

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
    • H01M4/925—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
    • 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
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/96—Carbon-based 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
    • 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
    • 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
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0005—Acid electrolytes
    • H01M2300/0008—Phosphoric acid-based
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)

Abstract

L'INVENTION CONCERNE UN CATALYSEUR DE PLATINE AMELIORE ET SON PROCEDE DE FABRICATION. ON REDUIT LA VITESSE DE RECRISTALLISATION DU PLATINE DANS UN CATALYSEUR DE PLATINE A SUPPORT DE CARBONE EN DEPOSANT DU CARBONE POREUX SUR ET AUTOUR DES CRISTALLITES DE PLATINE SUPPORTEES. ON PEUT SOUMETTRE LE CATALYSEUR A UN CHAUFFAGE ULTERIEUR SOUS UNE ATMOSPHERE INERTE OU SOUS VIDE A UNE TEMPERATURE ELEVEE. ON PEUT AINSI OBTENIR UN CATALYSEUR CONSTITUE DE CRISTALLITES DE PLATINE SUR UN SUPPORT DE CARBONE, CE CATALYSEUR AYANT UN MEILLEUR RENDEMENT. LE CATALYSEUR DE L'INVENTION EST UTILISE DANS LES PILES A COMBUSTIBLE.THE INVENTION RELATES TO AN IMPROVED PLATINUM CATALYST AND ITS MANUFACTURING PROCESS. THE SPEED OF RECRISTALLIZATION OF THE PLATE IN A CARBON-SUPPORTED PLATINUM CATALYST IS REDUCED BY DEPOSITING POROUS CARBON ON AND AROUND THE SUPPORTED PLATINUM CRYSTALLITES. THE CATALYST MAY BE SUBJECT TO SUBSEQUENT HEATING UNDER AN INERT ATMOSPHERE OR VACUUM AT A HIGH TEMPERATURE. A CATALYST CONSISTING OF PLATINUM CRYSTALLITES ON A CARBON SUPPORT CAN THUS BE OBTAINED, THIS CATALYST HAVING A BETTER EFFICIENCY. THE CATALYST OF THE INVENTION IS USED IN FUEL CELLS.

FR7833040A 1977-11-23 1978-11-23 IMPROVED PLATINUM CATALYST AND MANUFACTURING METHOD THEREOF Expired FR2409792B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US85428377A 1977-11-23 1977-11-23
US85428677A 1977-11-23 1977-11-23
US05/854,285 US4137373A (en) 1977-11-23 1977-11-23 Platinum catalyst and method for making
US05/854,284 US4137372A (en) 1977-11-23 1977-11-23 Catalyst and method for making

Publications (2)

Publication Number Publication Date
FR2409792A1 true FR2409792A1 (en) 1979-06-22
FR2409792B1 FR2409792B1 (en) 1986-05-16

Family

ID=27505919

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833040A Expired FR2409792B1 (en) 1977-11-23 1978-11-23 IMPROVED PLATINUM CATALYST AND MANUFACTURING METHOD THEREOF

Country Status (10)

Country Link
JP (1) JPS5482394A (en)
BR (1) BR7807532A (en)
CH (1) CH638693A5 (en)
DE (1) DE2848138A1 (en)
DK (1) DK155575C (en)
ES (1) ES475293A1 (en)
FR (1) FR2409792B1 (en)
GB (1) GB2008429B (en)
IL (1) IL55885A (en)
SE (1) SE439438B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6415809A (en) * 1987-07-10 1989-01-19 Fuji Electric Co Ltd Monitor system for working time of control panel
JP4061573B2 (en) 2001-05-18 2008-03-19 ソニー株式会社 Conductive catalyst particle manufacturing method, gas diffusing catalyst electrode manufacturing method, and apparatus used for conductive catalyst particle manufacturing method
JP4061575B2 (en) 2001-06-01 2008-03-19 ソニー株式会社 Conductive catalyst particles and method for producing the same, gas diffusive catalyst electrode, and electrochemical device
JP2007050319A (en) * 2005-08-16 2007-03-01 Ritsumeikan Composite catalytic particle
WO2009128203A1 (en) 2008-04-14 2009-10-22 パナソニック株式会社 Fuel cell provided with an oxygen electrode having a surface nanostructure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358359A (en) * 1939-05-17 1944-09-19 Colorado Fuel & Iron Corp Active carbon production
US3881957A (en) * 1972-03-17 1975-05-06 Universal Oil Prod Co Electrochemical cell comprising a catalytic electrode of a refractory oxide and a carbonaceous pyropolymer
FR2266956A1 (en) * 1974-04-08 1975-10-31 Exxon Research Engineering Co
US3979329A (en) * 1969-12-12 1976-09-07 Johnson Matthey & Co., Limited Carbon molecular sieve catalyst
US4028274A (en) * 1976-06-01 1977-06-07 United Technologies Corporation Support material for a noble metal catalyst and method for making the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1018373A (en) * 1963-03-26 1966-01-26 Du Pont Hydrogenation catalysts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358359A (en) * 1939-05-17 1944-09-19 Colorado Fuel & Iron Corp Active carbon production
US3979329A (en) * 1969-12-12 1976-09-07 Johnson Matthey & Co., Limited Carbon molecular sieve catalyst
US3881957A (en) * 1972-03-17 1975-05-06 Universal Oil Prod Co Electrochemical cell comprising a catalytic electrode of a refractory oxide and a carbonaceous pyropolymer
FR2266956A1 (en) * 1974-04-08 1975-10-31 Exxon Research Engineering Co
US4028274A (en) * 1976-06-01 1977-06-07 United Technologies Corporation Support material for a noble metal catalyst and method for making the same

Also Published As

Publication number Publication date
SE7811784L (en) 1979-05-24
SE439438B (en) 1985-06-17
DE2848138C2 (en) 1989-08-03
ES475293A1 (en) 1980-04-01
FR2409792B1 (en) 1986-05-16
BR7807532A (en) 1979-07-24
IL55885A (en) 1981-11-30
GB2008429B (en) 1982-04-28
DE2848138A1 (en) 1979-06-13
CH638693A5 (en) 1983-10-14
GB2008429A (en) 1979-06-06
DK155575B (en) 1989-04-24
JPS5748258B2 (en) 1982-10-15
IL55885A0 (en) 1979-01-31
DK155575C (en) 1989-09-18
JPS5482394A (en) 1979-06-30
DK521478A (en) 1979-05-24

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Legal Events

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