GB1294203A - Improvements in or relating to highly active silver catalysts - Google Patents

Improvements in or relating to highly active silver catalysts

Info

Publication number
GB1294203A
GB1294203A GB42824/70A GB4282470A GB1294203A GB 1294203 A GB1294203 A GB 1294203A GB 42824/70 A GB42824/70 A GB 42824/70A GB 4282470 A GB4282470 A GB 4282470A GB 1294203 A GB1294203 A GB 1294203A
Authority
GB
United Kingdom
Prior art keywords
silver
hydroxide
relating
highly active
active silver
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.)
Expired
Application number
GB42824/70A
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.)
Siemens AG
Original Assignee
Siemens AG
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 DE19691947422 external-priority patent/DE1947422C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1294203A publication Critical patent/GB1294203A/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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • 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)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1294203 Production of silver SIEMENS A G 7 Sept 1970 [19 Sept 1969] 42824/70 Heading C7D Catalytically active silver is produced by the reduction of a silver salt in the presence of a metal hydroxide on which the silver is deposited, the hydroxide then being dissolved out to leave not more than 5% w/ w thereof based on the deposited silver. The hydroxide may be dissolved in a base, such as NH 4 OH, NaOH or KOH. The silver salt may be AgNO 3 . The reducing agent may be hydrazine, formaldehyde or hydroxylamine. The hydroxide may be aluminium, cobalt, cadmium or nickel hydroxide.
GB42824/70A 1969-09-19 1970-09-07 Improvements in or relating to highly active silver catalysts Expired GB1294203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691947422 DE1947422C3 (en) 1969-09-19 Process for the production of a silver catalyst for electrodes of electrochemical cells, in particular fuel elements

Publications (1)

Publication Number Publication Date
GB1294203A true GB1294203A (en) 1972-10-25

Family

ID=5745924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42824/70A Expired GB1294203A (en) 1969-09-19 1970-09-07 Improvements in or relating to highly active silver catalysts

Country Status (5)

Country Link
JP (1) JPS4923111B1 (en)
CA (1) CA977735A (en)
FR (1) FR2062317A5 (en)
GB (1) GB1294203A (en)
SE (1) SE365127B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713855C3 (en) * 1977-03-29 1979-09-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Process for the production of a silver catalyst for electrochemical cells

Also Published As

Publication number Publication date
DE1947422B2 (en) 1976-01-22
CA977735A (en) 1975-11-11
FR2062317A5 (en) 1971-06-25
SE365127B (en) 1974-03-18
DE1947422A1 (en) 1971-04-29
JPS4923111B1 (en) 1974-06-13

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Legal Events

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