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Templated synthesis of metal nanorods in silica nanotubes

Patent ·
OSTI ID:1434708

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.

Research Organization:
The Regents of the University of California, Oakland, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0002247
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
9,937,556
Application Number:
14/358,127
OSTI ID:
1434708
Country of Publication:
United States
Language:
English

References (16)

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  • The Journal of Physical Chemistry B, Vol. 101, Issue 6, p. 852-854 https://doi.org/10.1021/jp963348i
journal February 1997
Rattle-type microspheres as a support of tiny gold nanoparticles for highly efficient catalysis journal January 2011
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Shape-Controlled Synthesis of Pd Nanocrystals in Aqueous Solutions journal January 2009
Gram-Scale Synthesis of Silica Nanotubes with Controlled Aspect Ratios by Templating of Nickel-Hydrazine Complex Nanorods journal October 2011
Preparation and Stability of Template-Synthesized Metal Nanorod Sols in Organic Solvents journal December 1998
Orthogonal Self-Assembly on Colloidal Gold-Platinum Nanorods journal August 1999
Colloidal Dispersions of Gold Rods:  Synthesis and Optical Properties journal January 2000
Seed-Mediated Synthesis of Palladium Nanorods and Branched Nanocrystals and Their Use as Recyclable Suzuki Coupling Reaction Catalysts journal July 2009
Iodide Ions Control Seed-Mediated Growth of Anisotropic Gold Nanoparticles journal August 2008
Control over the permeation of silica nanoshells by surface-protected etching with water journal January 2010
Gold@Polymer Nanostructures with Tunable Permeability Shells for Selective Catalysis journal March 2011

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