Title: Porous materials via freeze-casting of metal salt solutions

Abstract

Disclosed here is a method for making a nanoporous material, comprising aerosolizing a solution comprising at least one metal salt and at least one solvent to obtain an aerosol, freezing the aerosol to obtain a frozen aerosol, and drying the frozen aerosol to obtain a nanoporous metal compound material. Further, the nanoporous metal compound material can be reduced to obtain a nanoporous metal material.

Inventors:

Bagge-Hansen, Michael; Campbell, Patrick G.; Colvin, Jeffrey D.; Kucheyev, Sergei; Felter, Thomas E.

Issue Date:

Tue Oct 02 00:00:00 EDT 2018

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1492013

Patent Number(s):

10086431

Application Number:

14/741,334

Assignee:

Lawrence Livermoe National Security, LLC (Livermore, CA); National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

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

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2009/0824 - {with a specific atomising fluid}
B22F2009/0832 - {Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating}
B22F2009/084 - {combination of methods}
B22F2009/0844 - {in controlled atmosphere}
B22F2009/0864 - {by oil, other non-aqueous fluid or fluid-bed cooling}
B22F2201/013 - Hydrogen
B22F2201/20 - Use of vacuum
B22F2202/03 - Treatment under cryogenic or supercritical conditions
B22F2301/10 - Copper
B22F2301/255 - Silver or gold
B22F2304/05 - Submicron size particles
B22F2304/10 - Micron size particles, i.e. above 1 micrometer up to 500 micrometer
B22F2998/10 - Processes characterised by the sequence of their steps
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F3/11 - Making porous workpieces or articles
B22F9/026 - {Spray drying of solutions or suspensions}
B22F9/06 - starting from liquid material
B22F9/082 - {atomising using a fluid
B22F9/24 - starting from liquid metal compounds, e.g. solutions
B22F9/30 - with decomposition of metal compounds, e.g. by pyrolysis

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

B82Y40/00 - Manufacture or treatment of nanostructures

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G3/02 - Oxides
C01G3/10 - Sulfates
C01G5/00 - Compounds of silver

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/60 - Particles characterised by their size
C01P2004/61 - Micrometer sized, i.e. from 1-100 micrometer
C01P2006/10 - Solid density
C01P2006/14 - Pore volume

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C1/0425 - {Copper-based alloys}
C22C1/0466 - {Alloys based on noble metals}
C22C1/08 - Alloys with open or closed pores {

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Jun 16

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE