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US 2016/0107154 A1Published application
Ion-Conducting Membranes
AssigneeDioxide Materials, Inc.
InventorsRichard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
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AssigneeDioxide Materials, Inc.
InventorsRichard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
Estimating the term…
An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums and pyridiniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
1-14. (canceled)
An anion-conducting polymeric membrane comprising a polymer blend or mixture of a copolymer consisting essentially of styrene and vinylbenzyl-Rs with at least one polymeric constituent selected from the group consisting of:
In an electrochemical cell for electrochemically reducing carbon dioxide, the electrochemical cell comprising an anode, a cathode, an ion-conducting polymeric membrane interposed therebetween, a reactant stream comprising carbon dioxide in contact with said cathode, and a source of electrical power for directing electrical current from said cathode to said anode, whereby a reaction product comprising carbon monoxide is produced at said cathode, the improvement comprising:
Dependencies are inferred from the claim text.