Patent ID: 11970589
Assignee: UOP LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC C  H

Claim 10:
11. The method of making a composite proton conductive membrane comprising of claim 1
a. preparing a dispersion of a water insoluble ionically conductive polymer in water, organic solvent, or a water/organic solvent mixture;
b. preparing a mixed dispersion comprising the water insoluble ionically conductive polymer and inorganic fillers by adding the inorganic fillers or a dispersion of the inorganic fillers in water, organic solvent, or a water/organic solvent mixture to the dispersion of the water insoluble ionically conductive polymer under stirring and/or sonicating wherein said inorganic fillers have covalently bonded acidic functional groups and a high surface area of at least 150 m2/g; and
c. preparing a composite proton conductive membrane by casting a layer of the mixed dispersion on a nonporous substrate or on a microporous support membrane, followed by drying;
wherein the inorganic filler is selected from 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.