Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2004-06-03
2010-02-16
Hailey, Patricia L (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C502S182000, C502S185000, C502S301000, C420S442000, C420S444000, C420S456000, C420S457000, C420S468000, C420S485000, C420S497000, C420S582000, C420S583000, C420S584100, C420S587000, C420S588000, C420S428000, C420S466000, C420S441000, C420S443000, C420S445000, C420S446000, C420S447000, C420S448000, C420S449000, C420S450000, C420S451000, C420S452000, C420S453000, C420S454000, C420S455000, C420S458000, C420S459000, C420S460000, C420S469000, C420S580000
Reexamination Certificate
active
07662740
ABSTRACT:
A fuel cell catalyst comprising platinum, chromium, and copper, nickel or a combination thereof. In one or more embodiments, the concentration of platinum is less than 50 atomic percent, and/or the concentration of chromium is less than 30 atomic percent, and/or the concentration of copper, nickel, or a combination thereof is at least 35 atomic percent.
REFERENCES:
patent: 3915898 (1975-10-01), Acres et al.
patent: 3925259 (1975-12-01), Kane
patent: 4668310 (1987-05-01), Kudo et al.
patent: 4716087 (1987-12-01), Ito et al.
patent: 4717774 (1988-01-01), Narayan et al.
patent: 4806515 (1989-02-01), Luczak et al.
patent: 4954474 (1990-09-01), Tsurumi et al.
patent: 5068161 (1991-11-01), Keck et al.
patent: 5096866 (1992-03-01), Itoh et al.
patent: 5126216 (1992-06-01), Capuano et al.
patent: 5767036 (1998-06-01), Freund et al.
patent: 5876867 (1999-03-01), Itoh et al.
patent: 6045671 (2000-04-01), Wu et al.
patent: 6048633 (2000-04-01), Fujii et al.
patent: 6127058 (2000-10-01), Pratt et al.
patent: 6187164 (2001-02-01), Warren et al.
patent: 6187468 (2001-02-01), Shinkai et al.
patent: 6255011 (2001-07-01), Fujii et al.
patent: 6268077 (2001-07-01), Kelley et al.
patent: 6294280 (2001-09-01), Tanaka et al.
patent: 6309758 (2001-10-01), Schmidt
patent: 6730350 (2004-05-01), Finkelshtain et al.
patent: 2003/0008197 (2003-01-01), Gorer
patent: 2004/0142230 (2004-07-01), Katori et al.
patent: 3026777 (1980-07-01), None
patent: 0330627 (1989-08-01), None
patent: 0469514 (1992-02-01), None
patent: 0743092 (1996-11-01), None
patent: 0827225 (1998-03-01), None
patent: 1080435 (2001-03-01), None
patent: 63-190253 (1988-08-01), None
patent: 1988-190253 (1988-08-01), None
patent: WO 99/16137 (1999-04-01), None
“Effect of reduction conditions on electocatalytic activity of a ternary PtNiCr/C catalyst for methanol electro-oxidation,” Min Ku Jeon et al. Electrochimia Acta 54 (2009), pp. 2837-2842.
Chu, D. et al.—J. Electrochem. Soc. 1996, 143, 1685.
Ralph, T.R. et al.—Catalysts for Low Temperature Fuel Cells Part 1: The Cathode Challenges, Platinum Metals Rev., 2002, 46, (1), pp. 3-14.
Schmidt et al.—Characterization of high-surface-area electrocatalysts using a rotating disk electrode configuration, Journal of the Electrochemical Society, 1998, 145(7), pp. 2354-2358.
Schmidt et al.—Rotating disk electrode measurements on the CO tolerance of a high-surface area Pt/Vulcan carbon fuel cell electrocatalyst, Journal of the Electrochemical Society, 1999, 146(4), pp. 1296-1304.
Strasser, P. et al.—Combinatorial Electrochemical Strategies For the Discovery of New Fuel-Cell Electrode Materials, Proceedings of the International Symposium on Fuel Cells for Vehicles, 41st Battery Symposium, The Electrochemical Society of Japan, Nagoya 2000, pp. 34-35.
Strasser, P. et al.—Combinatorial Electrochemical Techniques for the Discovery of New Fuel-Cell Cathode Materials, 2001, vol. 2001-4, Direct Methanol Fuel Cells, Proceedings of the Electrochemical Society, New Jersey, Zawodzinski, T., eds, pp. 191-208.
Yasuda et al.—Polymerization-Pressure Dependencies of Properties of Perfluorosulfonate Cation-Exchanger Thin Films by Plasma Polymerization, Ber. Bunsenges. Phys. Chem., 1994, vol. 98, pp. 631-635.
International Search Report for Application No. PCT/US2004/017333 dated Nov. 12, 2004, 3pages.
Cendak Keith James
Cendak, legal representative Jennifer N.
Chondroudis Konstantinos
Devenney Martin
Fan Qun
Hailey Patricia L
Honda Giken Kogyo Kabushiki Kaisha
Senniger Powers LLP
Symyx Technologies Inc.
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