Water electrolysis cell

Details Water electrolysis cell Water electrolysis cell

2005-03-29

2005-03-29

King, Roy (Department: 1742)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S293000, C204S296000, C148S430000, C502S326000

Reexamination Certificate

active

06872286

ABSTRACT:
A water electrolyte cell can be used with a high energy efficiency over a long period of time. The water electrolyte cell has a pair of catalytic layers and an electrolyte membrane sandwiched between the catalytic layers. The catalytic layers includes an anode catalytic layer which contains a catalyst comprising an alloy of ruthenium, iridium, and at least one metal selected from the group consisting of iron, nickel, and cobalt, or an oxide of the alloy, or a mixture of the alloy and an oxide thereof. The at least one metal has a molar ratio with respect to ruthenium and iridium in the range from 0.05 to 0.13 mol with respect to 0.8 to 2.2 mols, preferably 1.8 to 2.2 mols, of ruthenium and 0.8 to 1.2 mols of iridium. The electrolyte membrane comprises a solid polymer electrolyte membrane.

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