Aerogel and metallic compositions

Details Aerogel and metallic compositions Aerogel and metallic compositions

2008-05-27

2008-05-27

Metzmaier, Daniel S. (Department: 1712)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous or semicontinuous solid phase

C502S184000, C502S185000, C429S047000, C429S047000

Reexamination Certificate

active

10327300

ABSTRACT:
Metallic aerogel compositions comprising an aerogel, e.g., RF or carbon aerogel, having metallic particles dispersed on its surface are disclosed. The aerogel compositions can have a uniform distribution of small metallic particles, e.g., 1 nanometer average particle diameter. Also disclosed are processes for making the aerogel compositions comprising contacting an aerogel with a supercritical fluid containing a metallic compound. The aerogel compositions are useful, for example in the manufacture of fuel cell electrodes.

REFERENCES:
patent: 4044193 (1977-08-01), Petrow et al.
patent: 4447505 (1984-05-01), Blanchart
patent: 4469816 (1984-09-01), Armor et al.
patent: 4614692 (1986-09-01), Kajiyama et al.
patent: 4832881 (1989-05-01), Arnold et al.
patent: 5260855 (1993-11-01), Kaschmitter et al.
patent: 5358802 (1994-10-01), Mayer et al.
patent: 5366828 (1994-11-01), Struthers
patent: 5395705 (1995-03-01), Door et al.
patent: 5425858 (1995-06-01), Farmer
patent: 5453169 (1995-09-01), Callstrom et al.
patent: 5455999 (1995-10-01), Weiss et al.
patent: 5476878 (1995-12-01), Pekala
patent: 5529971 (1996-06-01), Kaschmitter et al.
patent: 5601938 (1997-02-01), Mayer et al.
patent: 5607785 (1997-03-01), Tozawa et al.
patent: 5626977 (1997-05-01), Mayer et al.
patent: 5744510 (1998-04-01), Pekala
patent: 5789027 (1998-08-01), Watkins et al.
patent: 5851947 (1998-12-01), Hair et al.
patent: 5879744 (1999-03-01), Cao et al.
patent: 6005012 (1999-12-01), Hrubesh et al.
patent: 6010798 (2000-01-01), Hammerschmidt et al.
patent: 6426115 (2002-07-01), Sunol
patent: 6426116 (2002-07-01), Sunol
patent: 6440495 (2002-08-01), Wade et al.
patent: 6569358 (2003-05-01), Tai et al.
patent: 6809060 (2004-10-01), Suh et al.
patent: 6958308 (2005-10-01), Brown
patent: 7247259 (2007-07-01), Erkey et al.
patent: 2003/0064265 (2003-04-01), Hampden-Smith et al.
patent: 2003/0176277 (2003-09-01), Suh et al.
patent: 2003/0198849 (2003-10-01), Hampden-Smith et al.
patent: 2004/0141908 (2004-07-01), Hara et al.
patent: 56-009970 (1981-01-01), None
patent: 56-079858 (1981-06-01), None
patent: 57-005266 (1982-01-01), None
patent: 58-054563 (1983-03-01), None
patent: 59-073860 (1984-04-01), None
patent: 59-127372 (1984-07-01), None
patent: 60-065466 (1985-04-01), None
patent: 60-070668 (1985-04-01), None
patent: 60-077360 (1985-05-01), None
patent: 60-133659 (1985-07-01), None
patent: 60-133662 (1985-07-01), None
patent: 61-039367 (1986-02-01), None
patent: 62-051166 (1987-03-01), None
patent: 62-217352 (1987-11-01), None
patent: 02-226659 (1990-09-01), None
patent: 04-118857 (1992-04-01), None
patent: 08-022827 (1996-01-01), None
patent: 11-003715 (1999-06-01), None
patent: 2000-106194 (2000-04-01), None
patent: 2000-164224 (2000-06-01), None
patent: 2001-89129 (2001-04-01), None
patent: WO 97/16245 (1997-05-01), None
patent: WO 00/47319 (2000-08-01), None
patent: WO 03/057367 (2003-07-01), None
“A new electrocatalyst consisting of a molecularly homogeneous plantinm-aerogel nanocomposite”, Can J. Chem. 75:1666-1673 (1997) by Ye et al, month unknown.
“Deposition of Ruthenium Nanoparticles on Carbon Aerogels for High Energy Density Supercapacitor Electrodes”, Electrochemical Society Letters, vol. 144, No. 12, Dec. 1997 by Miller et al.
“Carbon aerogels for electrochemical applications”, Journal of Non-Crystalline Solids 225 (1998) 74-80 by Pekala, et al. (1998), month unknown.
“Aerogel composites using chemical vapor infiltration”, Journal of Non-Crystalline Solids 185 (1995) 227-232 by Hunt, et al. (1994), month unknown.
“Synthesis and textural characteristics of organic aerogels, transmtion-metal containing organic aerogels and their carbonized derivatives”, Carbon 37 (1999) 1199-1205 by Maldonado-Hodar et al., month unknown.
“Morphology and Electrochemistry of Ruthenium/Carbon Aerogel Nanostructures”, Langmuir 1999, 15,799-806 by Miller and Dunn, month unknown.
“Monolithic carbon aerogels for fuel cell electrodes”, Preparation of Catalysts VII. 1998, 167 by Pajonk et al. (1997), month unknown.
“Microporous Nature of Ce,Zr-Doped Carbon Aerogels”, Langmuir 1999, 15 7119-7121 by Bekyarova, et al. (1999), month unknown.
“Metal-carbon aerogels as catalysts and catalyst supports”, Studies in Surface Science and Catalysis (2000), 130, 1007 by Maldonado-Hodar et al, month unknown.
“Catalytic Graphitization of Carbon Aerogels by Transition Metals”, Langmuir, 2000, 16, 4367-4373 by Maldonado-Hodar et al, month unknown.
“Integration of carbon aerogels in PEM fuel cells”, Journal of Non-Crystalline Solids 285 (2001) 283-287 by Glora et al. (2001), month unknown.
International Search Report of PCT/US02/41205, Sep. 2004.
International Search Report for Serial No. PCT/US2004/033082 dated Dec. 7, 2005.
Article entitled “Polymer/Metal Nanocomposite Synthesis in Supercritical CO2” by Watkins et al., Chemistry of Materials, vol. 7, No. 11, Nov. 1995, 3 pages.
Webpae entitled “Types of Fuel Cells”, Fuel Cells 2000, www.fuelcells.org, The Online Fuel Cell Information Center, http://web.archive.org/web/20021211024857/http:/www.fuelcells.or . . . ; 5 pages, (Nov.-2007).

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