Templated synthesis of metal nanorods in silica nanotubes
AssigneeThe Regents of the University of California
InventorsYadong Yin, Chuanbo Gao
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Abstract
A method of preparing a metal nanorod. The method includes seeding a metal nanoparticle within the lumen of a nanotube, and growing a metal nanorod from the seeded metal nanoparticle to form a metal nanorod-nanotube composite. In some cases, the nanotube includes metal binding ligands attached to the inner surface. Growing of the metal nanorod includes incubating the seeded nanotube in a solution that includes: a metal source for the metal in the metal nanorod, the metal source including an ion of the metal; a coordinating ligand that forms a stable complex with the metal ion; a reducing agent for reducing the metal ion, and a capping agent that stabilizes atomic monomers of the metal. Compositions derived from the method are also provided.
Claims27
A method of preparing a metal nanorod, comprising:
- seeding a metal nanoparticle within the lumen of a nanotube;
- and
- growing a metal nanorod from the seeded metal nanoparticle to form a metal nanorod-nanotube composite.
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A composition comprising
- a) a nanotube having a metal binding group attached to the nanotube's inner surface;
- b) a plurality of nanotubes, each nanotube having a metal binding group attached to the nanotube's inner surface;
- c) a metal nanoparticle in a nanotube;
- d) a plurality of nanotubes, each nanotube comprising a metal nanoparticle in the nanotube;
- e) a metal nanorod in a nanotube;
- or
- f) a plurality of nanotubes, each nanotube comprising a metal nanorod in the nanotube.
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A solution for growing a metal nanostructure, comprising:
- a metal source for a metal in the metal nanorod, the metal source comprising an ion of the metal,
- a coordinating ligand that forms a stable complex with the metal ion,
- a reducing agent for reducing the metal ion, and
- a capping agent that stabilizes atomic monomers of the metal.
Dependencies are inferred from the claim text.