Title: Method of producing catalytic material for fabricating nanostructures

Abstract

Methods of fabricating nano-catalysts are described. In some embodiments the nano-catalyst is formed from a powder-based substrate material and is some embodiments the nano-catalyst is formed from a solid-based substrate material. In some embodiments the substrate material may include metal, ceramic, or silicon or another metalloid. The nano-catalysts typically have metal nanoparticles disposed adjacent the surface of the substrate material. The methods typically include functionalizing the surface of the substrate material with a chelating agent, such as a chemical having dissociated carboxyl functional groups (--COO), that provides an enhanced affinity for metal ions. The functionalized substrate surface may then be exposed to a chemical solution that contains metal ions. The metal ions are then bound to the substrate material and may then be reduced, such as by a stream of gas that includes hydrogen, to form metal nanoparticles adjacent the surface of the substrate.

Inventors:

Seals, Roland D.; Menchhofer, Paul A.; Howe, Jane Y.; Wang, Wei

Issue Date:

Tue Jan 30 00:00:00 EST 2018

Research Org.:

Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1418991

Patent Number(s):

9878307

Application Number:

13/740,899

Assignee:

Consolidated Nuclear Security, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J21/08 - Silica
B01J23/74 - Iron group metals
B01J23/745 - Iron
B01J23/755 - Nickel
B01J31/0274 - {containing silicon
B01J35/0013 - {Colloids}
B01J37/0072 - {Preparation of particles, e.g. dispersion of droplets in an oil bath}
B01J37/033 - {Using Hydrolysis}
B01J37/18 - with gases containing free hydrogen

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y40/00 - Manufacture or treatment of nanostructures

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S977/773 - Nanoparticle, i.e. structure having three dimensions of 100 nm or less
Y10S977/81 - Of specified metal or metal alloy composition
Y10S977/892 - Liquid phase deposition

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DOE Contract Number:  

AC05-00OR22800; AC05-00OR22725

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Jan 14

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY