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US 12,208,362 B2Granted
Nanoporous selective sol-gel ceramic membranes
AssigneeUniversity of Washington
InventorsGregory M. Newbloom, Aaron F. West, Ryan Kastilani, Canfeng Wei, Jaime Rodriguez, Lilo D. Pozzo, Lauren Martin
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Abstract
Nanoporous selective sol-gel ceramic membranes, selective-membrane structures, and related methods are described. Representative ceramic selective membranes include ion-conductive membranes (e.g., proton-conducting membranes) and gas selective membranes. Representative uses for the membranes include incorporation into fuel cells and redox flow batteries (RFB) as ion-conducting membranes.
Claims20
A nanoporous selective sol-gel ceramic membrane, comprising:
- a porous support having a plurality of support pores that are 10 nm or greater in diameter;
- a nanoporous composite comprising a nanoporous sol-gel ceramic composite filling at least a portion of the plurality of support pores;
- wherein the nanoporous sol-gel ceramic has a spherical fractal nanoporous structure as determined by fitting small-angle scattering spectra of the nanoporous sol-gel ceramic to a mathematical model;
- and
- wherein the nanoporous selective sol-gel ceramic membrane has an ionic area specific resistance (ASR) of 0.1 to 100 Ohm cm−2 in 0.5 M aqueous NaCl solution.
2 more elements
Dependencies are inferred from the claim text.