BE624358A - - Google Patents

Info

Publication number
BE624358A
BE624358A BE624358DA BE624358A BE 624358 A BE624358 A BE 624358A BE 624358D A BE624358D A BE 624358DA BE 624358 A BE624358 A BE 624358A
Authority
BE
Belgium
Prior art keywords
emi
powders
electrically conductive
raney
coatituer
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE624358A publication Critical patent/BE624358A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • 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
    • H01M4/98—Raney-type electrodes
    • 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)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Powder Metallurgy (AREA)
  • Inert Electrodes (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Description

       

   <EMI ID=1.1> 

  
squelette* 

  
 <EMI ID=2.1>   <EMI ID=3.1> 

  
par un squelette conducteur d'électricité, dans lequel sont noyés des graine de métal de. Raney. Ces électrodes ont été

  
 <EMI ID=4.1> 

  
gâteuse. 

  
Pour établir de telles électrodes, on doit d'abord obte-

  
 <EMI ID=5.1> 

  
broyer ce produit en poudre fine. Partant de cette poudre de métal de Raney, on sélectionne l'intervalle granulome trique

  
 <EMI ID=6.1> 

  
surer des degrés d'activité élevés, des méthodes de traitement ' particulières, telles que, par exemple, une activation régie par le potentiel; d'autre part, elle exige, pour la préparation

  
 <EMI ID=7.1> 

  
ce du métal de Raney, mais uniquement la structure de surface   <EMI ID=8.1>  

  
 <EMI ID=9.1>   <EMI ID=10.1>  

  
 <EMI ID=11.1>   <EMI ID=12.1>   <EMI ID=13.1> 

  
Il en résulte une augmentation notable de la charge admissible,  à polarisation égale. 

  
 <EMI ID=14.1> 



   <EMI ID = 1.1>

  
skeleton*

  
 <EMI ID = 2.1> <EMI ID = 3.1>

  
by an electrically conductive skeleton, in which are embedded metal seeds of. Raney. These electrodes were

  
 <EMI ID = 4.1>

  
sweet.

  
To establish such electrodes, one must first obtain

  
 <EMI ID = 5.1>

  
grind this product into a fine powder. Starting from this Raney metal powder, the granuloma interval is selected

  
 <EMI ID = 6.1>

  
over high activity levels, particular treatment methods, such as, for example, potential-controlled activation; on the other hand, it requires, for the preparation

  
 <EMI ID = 7.1>

  
ce of Raney's metal, but only the surface structure <EMI ID = 8.1>

  
 <EMI ID = 9.1> <EMI ID = 10.1>

  
 <EMI ID = 11.1> <EMI ID = 12.1> <EMI ID = 13.1>

  
This results in a notable increase in the admissible load, at equal polarization.

  
 <EMI ID = 14.1>

Claims (1)

<EMI ID=15.1> <EMI ID=16.1> <EMI ID=17.1> <EMI ID = 15.1> <EMI ID = 16.1> <EMI ID = 17.1> <EMI ID=18.1> <EMI ID = 18.1> 10. Procédé suivant la revendication 1, caractérisé en ce que les poudres de nickel et d'aluminium sont Mélangées tous une pression mécanique et comprimées de façon à coatituer un 10. The method of claim 1, characterized in that the nickel and aluminum powders are all mixed under mechanical pressure and compressed so as to coatituer a <EMI ID=19.1> <EMI ID = 19.1> <EMI ID=20.1> <EMI ID = 20.1> 11. Procédé suivant la revendication 1, caractérisé en ce que le mélange de poudres est pourvu d'un élément conducteur d'électricité sous la forma d'une toile, d'une résille ou d'une 11. The method of claim 1, characterized in that the mixture of powders is provided with an electrically conductive element in the form of a fabric, a mesh or a <EMI ID=21.1> <EMI ID = 21.1> ment au procédé suivant la revendication 1. ment to the process according to claim 1.
BE624358D 1962-09-07 BE624358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0041106 1962-09-07

Publications (1)

Publication Number Publication Date
BE624358A true BE624358A (en)

Family

ID=6932332

Family Applications (1)

Application Number Title Priority Date Filing Date
BE624358D BE624358A (en) 1962-09-07

Country Status (4)

Country Link
AT (1) AT247939B (en)
BE (1) BE624358A (en)
DE (1) DE1421355A1 (en)
NL (1) NL284984A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282004B (en) * 1965-07-10 1968-11-07 Basf Ag Use of electrodes made of alloys of tungsten and / or molybdenum with metals of the iron group
DE1288572B (en) * 1965-12-30 1969-02-06 Basf Ag Cathodic reduction of nitrous gases and / or nitric acid with electrodes containing titanium and / or tungsten

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014109071A1 (en) * 2014-06-27 2015-12-31 Inp Greifswald E.V. Process for the production of gas diffusion electrodes for fuel cells, as well as gas diffusion electrode and fuel cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282004B (en) * 1965-07-10 1968-11-07 Basf Ag Use of electrodes made of alloys of tungsten and / or molybdenum with metals of the iron group
DE1288572B (en) * 1965-12-30 1969-02-06 Basf Ag Cathodic reduction of nitrous gases and / or nitric acid with electrodes containing titanium and / or tungsten

Also Published As

Publication number Publication date
AT247939B (en) 1966-07-11
NL284984A (en)
DE1421355A1 (en) 1970-10-08

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