GB1292791A - Improvements in electrodes - Google Patents

Improvements in electrodes

Info

Publication number
GB1292791A
GB1292791A GB405/70A GB40570A GB1292791A GB 1292791 A GB1292791 A GB 1292791A GB 405/70 A GB405/70 A GB 405/70A GB 40570 A GB40570 A GB 40570A GB 1292791 A GB1292791 A GB 1292791A
Authority
GB
United Kingdom
Prior art keywords
electrode
catalyst
acid
alloy
powder
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
GB405/70A
Inventor
Gerd Sandstede
Horst Binder
Alfons Kohling
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to GB405/70A priority Critical patent/GB1292791A/en
Publication of GB1292791A publication Critical patent/GB1292791A/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
    • H01M4/8605—Porous electrodes
    • H01M4/8621—Porous electrodes containing only metallic or ceramic material, e.g. made by sintering or sputtering
    • 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
    • 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)
  • Ceramic Engineering (AREA)
  • Inert Electrodes (AREA)
  • Catalysts (AREA)

Abstract

1292791 Fuel cell electrode ROBERT BOSCH GmbH 5 Jan 1970 405/70 Heading H1B [Also in Divisions B1 and C7] An electrode for use in a fuel cell utilizing formic acid or carbon monoxide and hydrogen in an acid electrolyte, comprises an electrically conductive skeletal structure for example made from (1) a ductile metal powder such as gold or titanium, or (2) from a pulverulent mixture of a plastics material such as polyethylene, an epoxy resin or poly-acrylonitrile, and an electrically conductive material such as graphite or tantalum, and a catalyst consisting of a mixture of phosphorus or an element of the VIth main group of the Periodic Table e.g. S, Se, or Te, with Pt metal or a Pt metal alloy, such as an alloy of Pt with Pd, Ir, Rh, Ru, Mo or Ag. The Pt in the catalyst may be chemically or electrochemically reduced Pt. A phosphorus compound or a compound of the group VI element may be chemically or electrochemically decomposed in a porous Pt or Pt alloy electrode. In examples 1 and 2 the electrode is prepared by mixing Pt black with Se to form the catalyst which is further mixed with Au powder as a skeleton base material and Na 2 SO 4 as pore former. The mixture is pressed to form the electrode and Na 2 SO 4 is dissolved out. In example 3 the electrode catalyst is prepared by coprecipitating Pt and Se from an HCl solution of hexachloride platinic acid and selenious acid using hydrazine hydrate solution. The catalyst is mixed with graphite, polyethylene, powder and Na 2 SO 4 and pressed to form an electrode as above.
GB405/70A 1970-01-05 1970-01-05 Improvements in electrodes Expired GB1292791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB405/70A GB1292791A (en) 1970-01-05 1970-01-05 Improvements in electrodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB405/70A GB1292791A (en) 1970-01-05 1970-01-05 Improvements in electrodes

Publications (1)

Publication Number Publication Date
GB1292791A true GB1292791A (en) 1972-10-11

Family

ID=9703806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB405/70A Expired GB1292791A (en) 1970-01-05 1970-01-05 Improvements in electrodes

Country Status (1)

Country Link
GB (1) GB1292791A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5939220A (en) * 1996-10-25 1999-08-17 Johnson Matthey Public Limited Company Catalyst
US7282282B2 (en) 2002-04-04 2007-10-16 The Board Of Trustees Of The University Of Illinois Organic fuel cells and fuel cell conducting sheets
US7569297B2 (en) 2002-04-04 2009-08-04 The Board Of Trustees Of The University Of Illinois Fuel cell membranes and crossover prevention
US7740974B2 (en) 2002-04-04 2010-06-22 The Board Of Trustees Of The University Of Illinois Formic acid fuel cells and catalysts
US7785728B2 (en) 2002-04-04 2010-08-31 The Board Of Trustees Of The University Of Illinois Palladium-based electrocatalysts and fuel cells employing such electrocatalysts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5939220A (en) * 1996-10-25 1999-08-17 Johnson Matthey Public Limited Company Catalyst
US7282282B2 (en) 2002-04-04 2007-10-16 The Board Of Trustees Of The University Of Illinois Organic fuel cells and fuel cell conducting sheets
US7569297B2 (en) 2002-04-04 2009-08-04 The Board Of Trustees Of The University Of Illinois Fuel cell membranes and crossover prevention
US7740974B2 (en) 2002-04-04 2010-06-22 The Board Of Trustees Of The University Of Illinois Formic acid fuel cells and catalysts
US7785728B2 (en) 2002-04-04 2010-08-31 The Board Of Trustees Of The University Of Illinois Palladium-based electrocatalysts and fuel cells employing such electrocatalysts

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees