Electroactivated material, its preparation and utilization...

Details Electroactivated material, its preparation and utilization... Electroactivated material, its preparation and utilization...

C - Chemistry, Metallurgy

25

B

C25B 11/04 (2006.01)

Patent

CA 2183104

Electroactivated material comprising fibres of which at least one part is electroconducting, a binder, characterized in that it further comprises an electrocatalytic agent consisting of articles of oxide of ruthenium, platinum, palladium, iridium, or a mixture thereof, or of one or a plurality of said oxides, distributed at least partly, on an electroconducting support. The electroactivated material is particularly usable as a cathode element of an electrolysis cell, and particularly a cell for the electrolysis of aqueous sodium chloride solutions. The present invention also relates to a composite material comprising (a) a high porosity material, (b) the above-mentioned electroactivated material. Finally, the invention relates to a composite material comprising from one face to the other: (a) a high porosity metal surface, (b) the above-mentioned electroactivated material, (c) a separator.

Matériau électroactivé comprenant des fibres dont une partie au moins est conductrice d'électricité, un liant, caractérisé en ce qu'il comprend en outre un agent électrocatalytique constitué par des particules formées d'oxyde de ruthénium, de platine, de palladium, d'iridium, ou leur mélange, ou de l'un ou plusieurs desdits oxydes, répartis au moins en partie, sur un support conducteur d'électricité. Le matériau électroactivé est utilisable notamment en tant qu'élément cathodique d'une cellule d'electrolyse, et en particulier d'une cellule d'électrolyse de solutions aqueuses de chlorure de sodium. La présente invention concerne de même un matériau composite comprenant: (a) un matériau à porosité élevée, (b) le matériau électroactivé précité. L'invention concerne enfin un matériau composite comprenant d'une face vers l'autre: (a) une surface métallique de porosité élevée, (b) le matériau électroactivé précité, (c) un séparateur.

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