Monolayer coated aerogels and method of making

Zemanian, Thomas Samuel; Fryxell, Glen; Ustyugov, Oleksiy A

Title: Monolayer coated aerogels and method of making

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Abstract

Aerogels having a monolayer coating are described. The aerogel and a monolayer forming precursor are provided in a supercritical fluid, whereupon the aerogel and the monolayer forming precursor are reacted in said supercritical fluid to form a covalent bond between the aerogel and the monolayer forming precursor. Suitable aerogels are ceramic oxides such as silica, alumina, aluminosilicate, and combinations thereof. Suitable monolayer forming precursors include alkyl silanes, chlorosilanes, boranes, chloroboranes, germanes, and combinations thereof. The method may also include providing a surface preparation agent such as water, or hydroetching an aerogel to enhance the coating of the monolayer.

Inventors:

Zemanian, Thomas Samuel ^[1]; Fryxell, Glen ^[2]; Ustyugov, Oleksiy A ^[3]

Richland, WA
Kennwick, WA
Spokane, WA

Issue Date:: 2006-03-28

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 908536

Patent Number(s):: 7019037

Application Number:: 10/045,948

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

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

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/54 - characterised by the solvent

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/103 - {comprising silica}
B01J13/0069 - {Post treatment}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B33/1585 - {Dehydration into aerogels}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2995 - Silane, siloxane or silicone coating

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/28083 - {being in the range 2-50 nm, i.e. mesopores}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/2809 - {Monomodal or narrow distribution, uniform pores}
B01J20/3246 - {having a well defined chemical structure}
B01J13/0091 - {Preparation of aerogels, e.g. xerogels}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B13/145 - {After-treatment of oxides or hydroxides, e.g. pulverising, drying, decreasing the acidity}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J2220/42 - Materials comprising a mixture of inorganic materials
B01J20/3217 - {Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond}
B01J20/16 - Alumino-silicates
B01J20/08 - comprising aluminium oxide or hydroxide
B01J20/3257 - {the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such}
B01J20/28047 - {Gels}
B01J20/3204 - {Inorganic carriers, supports or substrates}

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Zemanian, Thomas Samuel, Fryxell, Glen, and Ustyugov, Oleksiy A. Monolayer coated aerogels and method of making.  United States: N. p., 2006. 
        Web.

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                    Zemanian, Thomas Samuel, Fryxell, Glen, & Ustyugov, Oleksiy A. Monolayer coated aerogels and method of making.  United States.

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                    Zemanian, Thomas Samuel, Fryxell, Glen, and Ustyugov, Oleksiy A. Tue .  
        "Monolayer coated aerogels and method of making".  United States.  https://www.osti.gov/servlets/purl/908536.

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@article{osti_908536,

  title        = {Monolayer coated aerogels and method of making},

  author       = {Zemanian, Thomas Samuel and Fryxell, Glen and Ustyugov, Oleksiy A},

  abstractNote = {Aerogels having a monolayer coating are described. The aerogel and a monolayer forming precursor are provided in a supercritical fluid, whereupon the aerogel and the monolayer forming precursor are reacted in said supercritical fluid to form a covalent bond between the aerogel and the monolayer forming precursor. Suitable aerogels are ceramic oxides such as silica, alumina, aluminosilicate, and combinations thereof. Suitable monolayer forming precursors include alkyl silanes, chlorosilanes, boranes, chloroboranes, germanes, and combinations thereof. The method may also include providing a surface preparation agent such as water, or hydroetching an aerogel to enhance the coating of the monolayer.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {3}

}

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