Electrochemical cell having a mass flow field made of glassy carbon
AssigneeE. I. Du Pont de Nemours and Company
InventorsClarence Garlan Law, Jr., James Arthur Trainham, III, John Scott Newman
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Abstract
The invention relates to an electrochemical cell which has an electrode, a membrane disposed in contact with one side of the electrode and a mass flow field disposed on the other side of the electrode for directing fluid to and away from the electrode. The mass flow field comprises glassy carbon. The cell of the present invention is particularly useful in converting anhydrous hydrogen halide, in particular, hydrogen fluoride, directly to essentially dry halogen gas, such as anhydrous hydrogen fluoride to fluorine gas.
Claims23
An electrochemical cell for directly producing essentially dry halogen gas from essentially anhydrous hydrogen halide, comprising:
- (a) means for oxidizing molecules of essentially anhydrous hydrogen halide to produce essentially dry halogen gas and protons;
- (b) cation-transporting means for transporting the protons therethrough, wherein one side of the oxidizing means is disposed in contact with one side of the cation-transporting means;
- (c) reducing means for reducing the transported protons, wherein the reducing means is disposed in contact with the other side of the cation-transporting means;
- and
- (d) a mass flow field disposed on at least one side of the cation-transporting means, wherein the mass flow field comprises glassy carbon.
Dependencies are inferred from the claim text.