Regenesys Technologies Limited

Ian Whyte

Philip John Mitchell

Stewart Ernest Male

Graham Edward Cooley

Duncan Guy Clark

Mark Christopher Turpin

Timothy James Calver

Reticulated vitrified carbon compositions which contain particles of Cu, Sn, Zn, Pb, Ni, Fe, or alloys or mixtures thereof dispersed therein and reticulated vitreous carbon compositions wherein some or all of said metal or alloy particles have been converted into salts or mixtures of salts thereof. Processes for the preparation of such compositions.

Vitrified carbon compositions

A carbon based electrode for the electrochemical reduction of sulfur or oxygen, which comprises an electrode core and, in electrical contact therewith, a structure comprising a porous particulate activated carbon bonded with a polymeric binder material, characterised in that the structure is at least 1 mm thick, in that the particulate activated carbon is prepared from a lignocellulosic material and has the following properties: i) a particle size in the range of from 200 to 850 &mgr;m; ii) a pore volume of from 0.45 to 1.0 cm per gram; iii) a surface area in the range of from 800 to 1500 m /g; and in that the binder is used in an amount not exceeding 25% by weight based upon the mixture of activated carbon and binder material.

Carbon based electrodes

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Ian Whyte