Passivated silver nanoparticle coatings and methods of making the same
AssigneesArizona Board of Regents on behalf of Arizona State University, Cactus Materials, Inc.
InventorsRafiqul Islam, Francois Perreault
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Abstract
The instant disclosure is directed to passivated silver nanoparticle coatings and methods of making the same. A method may comprise obtaining a substrate having a surface, exposing the surface to a plurality of silver nanoparticles, applying a nucleating agent to the silver nanoparticles to form a plurality of silver cores, and passivating the silver cores by applying a sulfidation agent to the silver cores to form silver sulfide shells around the silver cores, thereby forming a coating comprising a plurality of sulfidated silver nanoparticles having a core-shell structure. The method may be used to form a coating comprising a plurality of sulfidated silver nanoparticles having a core-shell structure.
Claims20
A method comprising:
- obtaining a substrate having a surface;
- exposing the surface to a plurality of silver nanoparticles (Ag NPs);
- applying a nucleating agent to the silver nanoparticles to form a plurality of silver cores;
- and
- passivating the silver cores by applying a sulfidation agent to the silver cores to form silver sulfide (Ag2S) shells around the silver cores;
- thereby forming a coating comprising a plurality of sulfidated silver nanoparticles (Ag/Ag2S) having a core-shell structure.
A composition comprising a plurality of sulfidated silver nanoparticles having a core-shell structure.
Dependencies are inferred from the claim text.