Modified carbon or graphite fibrous percolating porous electrode, its use in electrochemical reactions
AssigneeSociete Nationale Elf Aquitaine
InventorsMichel Astruc, Pierre-Yves Guyomar, Catherine Lestrade
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Abstract
This invention concerns a fibrous percolating porous electrode of the type containing a fibrous porous matrix made of carbon or graphite. The fibrous porous matrix, such as a carbon or graphite felt, is modified, for example by impregnation with a surface-active agent, and in the wetted state its apparent density in relation to water possesses specific values.
Claims6
A method for the electrochemical reaction of a non-fused salt material in a liquid phase solution which comprises percolating a solution containing the material to be electrochemically reacted through a percolating porous electrode comprising a fibrous carbon or graphite porous matrix impregnated with a surface active agent having an apparent density in relation to water, in the wetted state, between 1.6 and three times the apparent density in relation to water of the corresponding non-impregnated fibrous porous matrix in the wetted state and establishing a potential difference between the percolating porous electrode and a counter electrode in contact with the solution.
Dependencies are inferred from the claim text.