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GB2008429A - Carbon-supported platinum catalyst. - Google Patents

Carbon-supported platinum catalyst.

Info

Publication number
GB2008429A
GB2008429A GB7842723A GB7842723A GB2008429A GB 2008429 A GB2008429 A GB 2008429A GB 7842723 A GB7842723 A GB 7842723A GB 7842723 A GB7842723 A GB 7842723A GB 2008429 A GB2008429 A GB 2008429A
Authority
GB
United Kingdom
Prior art keywords
carbon
catalyst
platinum catalyst
supported platinum
platinum
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
GB7842723A
Other versions
GB2008429B (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.)
RTX 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 GB2008429A publication Critical patent/GB2008429A/en
Application granted granted Critical
Publication of GB2008429B publication Critical patent/GB2008429B/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

The rate of platinum recrystallization of a platinum supported on carbon catalyst is reduced by depositing porous carbon on and around the supported platinum crystallites. The catalyst can subsequently be heated in an inert atmosphere or vacuum at a high temperature. A catalyst with an improved performance in electrochemical cells can be obtained.
GB7842723A 1977-11-23 1978-11-01 Platinum catalyst and method for making Expired GB2008429B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US85428677A 1977-11-23 1977-11-23
US85428377A 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
GB2008429A true GB2008429A (en) 1979-06-06
GB2008429B GB2008429B (en) 1982-04-28

Family

ID=27505919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7842723A Expired GB2008429B (en) 1977-11-23 1978-11-01 Platinum catalyst and method for making

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 catalyst particles
CN101939868B (en) 2008-04-14 2013-08-14 松下电器产业株式会社 Fuel cells with oxygen electrodes with surface nanostructures

Family Cites Families (6)

* 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
GB1018373A (en) * 1963-03-26 1966-01-26 Du Pont Hydrogenation catalysts
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
US3964933A (en) * 1974-04-08 1976-06-22 Exxon Research And Engineering Company Carbon article including electrodes and methods of making the same
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
FR2409792B1 (en) 1986-05-16
DK521478A (en) 1979-05-24
ES475293A1 (en) 1980-04-01
JPS5748258B2 (en) 1982-10-15
FR2409792A1 (en) 1979-06-22
DK155575C (en) 1989-09-18
BR7807532A (en) 1979-07-24
GB2008429B (en) 1982-04-28
DE2848138A1 (en) 1979-06-13
DK155575B (en) 1989-04-24
IL55885A (en) 1981-11-30
JPS5482394A (en) 1979-06-30
DE2848138C2 (en) 1989-08-03
SE439438B (en) 1985-06-17
SE7811784L (en) 1979-05-24
CH638693A5 (en) 1983-10-14
IL55885A0 (en) 1979-01-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee