C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/42 (2006.01) B01D 69/14 (2006.01) B01D 71/06 (2006.01) B01J 21/16 (2006.01) B01J 31/10 (2006.01) B29C 59/14 (2006.01) C08J 5/22 (2006.01) C09C 3/04 (2006.01)
Patent
CA 2563929
The invention relates to a method for production of proton-conducting clay particles and a composite material, comprising the following serial steps: a) an activation step for a clay powder, comprising a stage in which said powder is subjected to a gas plasma, b) a graft step, comprising a stage in which the activated powder from step a) is brought into contact with a solution of at least one compound with at least one group selected from -PO3H2, -CO2H, -SO3H and the salts thereof and comprising at least one group capable of grafting to the surface of said powder. The invention further relates to the application of said particles to the production of membranes for fuel cells.
L'invention a trait à un procédé de préparation de particules d'argile conductrices de protons comprenant successivement les étapes suivantes : a) une étape d'activation d'une poudre d'argile comprenant une étape dans laquelle on soumet ladite poudre à un plasma de gaz ; b) une étape de greffage comprenant une étape de mise en contact de la poudre activée obtenue à l'issue de l'étape a) avec une solution comprenant au moins un composé comprenant au moins un groupe choisi parmi -PO3H2, -CO2H, -SO3H et leurs sels et comprenant au moins un groupe apte à se greffer à la surface de ladite poudre. Application de ces particules à la fabrication de membranes de pile à combustible.
Bebin Philippe
Bergaya Faiza
Caravanier-Caillon Magaly
Galiano Herve
Hourquebie Patrick
Commissariat A. L'energie Atomique
Goudreau Gage Dubuc
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