B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 71/02 (2006.01) B01D 69/10 (2006.01) B01D 69/14 (2006.01) B01D 71/04 (2006.01) C03C 17/30 (2006.01) C08J 5/22 (2006.01) C25B 13/04 (2006.01) H01M 8/02 (2006.01) B01J 21/06 (2006.01) B01J 35/00 (2006.01) B01J 35/06 (2006.01) B01J 37/02 (2006.01)
Patent
CA 2431055
The invention relates to a cation-conducting or proton-conducting ceramic membrane, a method for the production thereof and the use of the same. The inventive membrane represents a novel category of solid proton-conducting membranes, and is based on a porous and flexible ceramic membrane described in patent application PCT/EP98/05939. Said membrane is infiltrated by a proton- conducting substance, and is then dried and consolidated in such away that the end result is an impermeable, cation-conducting or proton-conducting membrane. The proton-conducting substance is a hydroxysilylsulfonic acid or a hydroxysilylphosphonic acid which is integrated into an inorganic network, e.g. SiO2. The ceramic membrane thus remains flexible and can be used without a problem as a membrane in a fuel cell.
L'invention concerne une membrane conductrice de cations ou de protons, son procédé de production et son utilisation. La membrane selon l'invention représente une nouvelle classe de membranes solides conductrices de protons. La base de cette invention est une membrane céramique souple et poreuse, décrite dans le dépôt de brevet PCT/EP98/05939. Cette membrane est infiltrée avec une substance conductrice de protons, puis elle est séchée et consolidée de sorte qu'on obtient finalement une membrane imperméable, conductrice de cations ou de protons. La substance conductrice de protons est un acide hydroxysilylsulfonique ou un acide hydroxysilylphosphonique, intégré dans un réseau inorganique, par exemple SiO¿2?. Ce faisant, la membrane céramique reste souple et peut être utilisée sans problème en tant que membrane dans une pile à combustible.
Hennige Volker
Horpel Gerhard
Hying Christian
Creavis Gesellschaft Fur Technologie Und Innovation Mbh
Fetherstonhaugh & Co.
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