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US 12,606,921 B2Granted
Carbon supported nitrogen surface functionalized silver nanoparticles for gas diffusion electrodes
AssigneeGenesee Valley Innovations, LLC
InventorsYujie Zhu, Yulin Wang, Robert Claridge, Kurt I. Halfyard
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Abstract
A composition, a gas diffusion electrode, and a method for fabricating the same is disclosed. In an example, the composition includes carbon supported nitrogen surface functionalized silver nanoparticles. The gas diffusion electrode can be fabricated with the carbon supported nitrogen surface functionalized silver nanoparticles and deployed in a membrane electrode assembly for various applications.
Claims5
A method, comprising:
- preparing an ink comprising carbon supported nitrogen surface functionalized silver nanoparticles, wherein the preparing the ink comprises:
- impregnating a microporous carbon structure with nitrogen surface functionalized silver nanoparticles formed in isolation from the microporous carbon structure to form the carbon supported nitrogen surface functionalized silver particles;
- mixing the carbon supported nitrogen surface functionalized silver nanoparticles with a solvent;
- and
- applying ultra-sonication to a mixture of the carbon supported nitrogen surface functionalized silver nanoparticles and the solvent;
- and
- depositing the ink on an electrically conductive surface of a gas diffusion electrode;
- wherein:
- a silver loading on the gas diffusion electrode after deposition is from about 0.08 mg/cm2 to about 0.1 mg/cm2;
- and
- the carbon supported nitrogen surface functionalized silver nanoparticles exhibit a Faradic efficiency of greater than 60%.
8 more elements
Dependencies are inferred from the claim text.