US6958308-B2  Blackburn et al., "Deposition of Conformal Copper and Nickel Films from Supercritical Carbon Dioxide,&#8221; Science, 294:141-145, Oct. 2001.;  Blackburn et al., "Reactive Deposition of Conformal Palladium Films from Supercritical Carbon Dioxide Solution,&#8221; Chemistry of Materials, 12:2625-2631, Feb. 2000.;  Cabanas et al., "A Continuous and Clean One-Step Synthesis of Nano-Particulate Ce1-xZrx02 Solid Solutions in Near-Critical Water,&#8221; Chemical Communications, 11:901-902 (2000), no month.;  Cansell et al., "Supercritical Fluid Processing: A New Route for Material Synthesis,&#8221; Journal of Materials Chemistry, 9:67-75 (1999), no month.;  Chao et al., "A Study of Polypyrrole Synthesized with Oxidative Transition Metal Ions,&#8221; Journal of Polymer Science, Part A: Polymer Chemistry, 26:743-753 (1988), no month.;  Internet website for Sigma-Aldrich for Product No. 530565, "Polyaniline (emeraldine salt)--composite with carbon black,&#8221; www.sigmaaldrich. com (Apr. 6, 2004).;  Internet website for Sigma-Aldrich for Product No. 530573, "Polypyrrole--composite with carbon black,&#8221; www.sigmaaldrich.com (Apr. 6, 2004).;  Johnston, "Safer Solutions for Chemists,&#8221; Nature, 368:187-188, Mar. 1994.;  Kaupp, "Reactions in Supercritical Carbon Dioxide,&#8221; Angewandte Chemie, 33:1452-1455 (1994), no month.;  Kordikowski et al., "Resolution of Ephedrine in Supercritical CO2 : A Novel Technique for the Separation of Chiral Drugs,&#8221; J. Pharm, Sci., 88:786-791 (1999), no month.;  Lefebvre et al., "Electronically Conducting Proton Exchange Polymers as Catalyst Supports for Proton Exchange Membrane Fuel Cells,&#8221; Journal of Electrochemical Society, 146(6):2054-2058 (1999), no month.;  Long et al., "Chemical Fluid Deposition: A Hybrid Technique for Low-Temperature Metallization,&#8221; Advanced Materials, 12:913-915 (2000), no month.;  Loeffler et al., "Activity and Durability of Water-Gas Shift Catalysts Used for the Steam Reforming of Methanol,&#8221; Journal of Power Sources, 114(1):15-20 (2003), no month.;  Morrison et al., "Step-Reaction Polymerization.&#8221; Organic Chemistry, Fifth Edition, Sec. 36.7:1249-1252 (1987), no month.;  Park et al., "Formation of Nylon Particles and Fibers Using Precipitation with a Compressed Antisolvent,&#8221; Industrial & Eng. Chem. Res., 41:1504-1510 (2002), no month.;  Product Brochure entitled "Raven Blacks,&#8221; published by Columbian Chemicals Company, Marietta, Georgia (Oct. 1999).;  Shah et al., "Steric Stablization of Nanocrystals in Supercitial CO 2 Using Fluorinated Ligands,&#8221; J. Am Chem. Soc., 122:4245-4246, Apr. 2000.;  Tsubokawa, "Functionalization of Carbon Black by Surface Grafting of Polymers,&#8221; Prog. Polym. Sci., 17:417-470 (1992), no month.;  Uchida et al., "Effects of Microstructure of Carbon Support in the Catalyst Layer on the Performance of Polymer-Electrolyte Fuel Cells, &#8221; J. Electrochem. Soc., 143(7):2245-2252 (1996), no month.;  Wampler et al., "Composites of Polypyrrole and Carbon Black: Part III. Chemical Synthesis and Characterization,&#8221; Journal of Materials Research, 10(7):1811-1822 (1995), no month.;  Watkins et al., "Chemical Fluid Depoisition: Reactive Deposition of Platinum Metal from Carbon Dioxide Solution,&#8221; Chemistry of Materials, 11:213-215 (1999), Jan. 199.;  Watkins et al., "Polymer/Metal Nanocomposites in Supercritical CO2, &#8221; Chemistry of Materials, 7:1991-1994, Nov. 1995.;  Watkins et al., "Polymerization of Styrene in Supercritical CO2--Swollen Poly(chlorotrifluoroethylene),&#8221; Macromolecules, 28:4067-4074 (1995), no month.;  Wei et al., "Stablization of Platinized Carbon Catalysts for PAFC,&#8221; Journal of Applied Electrochemistry, 30:723-725 (2000), no month.;  Wei et al., "Synthesis of Highly Sulfonated Polyaniline,&#8221; Synthetic Metals, 74:123-125 (1995), no month.