Inventors:
- Seattle WA, US
Olivia Marie Lenz - Seattle WA, US
Phillip Reaves Pickett - Bainbridge Island WA, US
Rachel Alexis Malone - Seattle WA, US
Stephanie Lynn Candelaria - Seattle WA, US
Yiheng Zhang - Seattle WA, US
Kathryn Lynn Corp - Seattle WA, US
Aditya Ashok Salunkhe - Seattle WA, US
Matthew Jason Canin - Kirkland WA, US
Assignee:
Membrion, Inc. - Seattle WA
International Classification:
B01D 69/14
B01D 71/02
B01D 71/70
B01D 71/66
B01D 71/78
B01D 71/82
B01D 67/00
B01D 69/10
C25B 9/10
C25B 13/04
Abstract:
Cation exchange membranes and materials including silica-based ceramics, and associated methods, are provided. In some aspects, cation exchange membranes that include a silica-based ceramic that forms a coating on and/or within a porous support membrane are described. The cation exchange membranes and materials may have certain structural or chemical attributes (e.g., pore size/distribution, chemical functionalization) that, alone or in combination, can result in advantageous performance characteristics in any of a variety of applications for which selective transport of positively charged ions through membranes/materials is desired. In some embodiments, the silica-based ceramic contains relatively small pores (e.g., substantially spherical nanopores) that may contribute to some such advantageous properties. In some embodiments, the cation exchange membrane or material includes sulfonate and/or sulfonic acid groups covalently bound to the silica-based ceramic.