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Ion-conducting membranes

Patent ·
OSTI ID:1415030

An anion-conducting polymeric membrane comprises a terpolymer of styrene, vinylbenzyl-R.sub.s and vinylbenzyl-R.sub.x. R.sub.s is a positively charged cyclic amine group. R.sub.x is at least one constituent selected from the group consisting Cl, OH and a reaction product between an OH or Cl and a species other than a simple amine or a cyclic amine. The total weight of the vinylbenzyl-R.sub.x groups is greater than 0.3% of the total weight of the 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.

Research Organization:
Dioxide Materials, Inc., Boca Raton, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000345; SC0004453
Assignee:
Dioxide Materials, Inc. (Boca Raton, FL)
Patent Number(s):
9,849,450
Application Number:
15/400,775
OSTI ID:
1415030
Country of Publication:
United States
Language:
English

References (39)

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Anion exchange membranes: Current status and moving forward
  • Hickner, Michael A.; Herring, Andrew M.; Coughlin, E. Bryan
  • Journal of Polymer Science Part B: Polymer Physics, Vol. 51, Issue 24, p. 1727-1735 https://doi.org/10.1002/polb.23395
journal October 2013
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