US 11,970,589 B2
Composite proton conductive membranes
Chunqing Liu, Arlington Heights, IL (US); Xueliang Dong, Schaumburg, IL (US); and Chaoyi Ba, Schaumburg, IL (US)
Assigned to UOP LLC, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Jan. 29, 2021, as Appl. No. 17/162,421.
Prior Publication US 2022/0243019 A1, Aug. 4, 2022
Int. Cl. C08J 5/22 (2006.01); C08K 3/36 (2006.01); H01M 8/1069 (2016.01)
CPC C08J 5/2225 (2013.01) [C08K 3/36 (2013.01); H01M 8/1069 (2013.01); C08J 2205/042 (2013.01); C08J 2205/044 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A composite proton conductive membrane, comprising:
an inorganic filler having covalently bonded acidic functional groups and a high surface area of at least 150 m2/g;
a water insoluble ionically conductive polymer; and
a microporous support membrane, wherein the inorganic filler is selected from the group consisting of a metal-organic framework, a zeolitic imidazolate framework, a covalent organic framework and a combination thereof; and
wherein the water insoluble ionically conductive polymer is selected from a group consisting of a polysaccharide polymer, a cross-linked polysaccharide polymer, a metal ion-complexed polysaccharide polymer, an acid-complexed polysaccharide polymer, a cross-linked poly(acrylic acid) polymer, a metal ion-complexed poly(acrylic acid) polymer, an acid-complexed poly(acrylic acid) polymer, a cross-linked poly(methacrylic acid), a metal ion-complexed poly(methacrylic acid), an acid-complexed poly(methacrylic acid), and combinations thereof.