Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2009-08-17
2010-11-23
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S006000
Reexamination Certificate
active
07838141
ABSTRACT:
The present invention provides novel compositions that find advantageous use in making electrodes for electrochemical cells and electrochemical devices such as solid oxide fuel cells, electrolyzers, sensors, pumps and the like, the compositions comprising cerium-modified doped strontium titanate. The invention also provides novel methods for making and using anode material compositions and solid oxide fuel cells and solid oxide fuel cell assemblies having anodes comprising the compositions.
REFERENCES:
patent: 4133778 (1979-01-01), Gray
patent: 4330633 (1982-05-01), Yoshisato et al.
patent: 4562124 (1985-12-01), Ruka
patent: 4702971 (1987-10-01), Isenberg
patent: 4849254 (1989-07-01), Spengler et al.
patent: 5021304 (1991-06-01), Ruka et al.
patent: 5106706 (1992-04-01), Singh et al.
patent: 5108850 (1992-04-01), Carlson et al.
patent: 5342704 (1994-08-01), Vasilow et al.
patent: 5474800 (1995-12-01), Matsuzaki
patent: 5509189 (1996-04-01), Tuller et al.
patent: 5686198 (1997-11-01), Kuo et al.
patent: 5759936 (1998-06-01), Christiansen et al.
patent: 5770326 (1998-06-01), Limaye
patent: 5807642 (1998-09-01), Xue et al.
patent: 5932146 (1999-08-01), Kuo et al.
patent: 5993986 (1999-11-01), Wallin et al.
patent: 6120924 (2000-09-01), Chiba et al.
patent: 6248468 (2001-06-01), Ruka et al.
patent: 6548203 (2003-04-01), Wallin et al.
patent: 6589680 (2003-07-01), Gorthe et al.
patent: 6893762 (2005-05-01), Sarkar et al.
patent: 7033470 (2006-04-01), Mazanec et al.
patent: 2002/0015871 (2002-02-01), Tao et al.
patent: 2002/0031694 (2002-03-01), Van Berkel et al.
patent: 05 235383 (1993-09-01), None
patent: WO 00/64814 (2000-11-01), None
Balachandran et al., “Electrical Conductivity in Strontium Titanate,”Journal of Solid State Chemistry39:351-359, 1981.
Balachandran et al., “Electrical Conductivity in Lanthanum-Doped Strontium Titanate,”J. Electrochem. Soc. 129(5):1021-1026, May 1982.
Chan et al., “Nonstoichiometry in SrTiO3,” J. Electrochem. Soc. 128(8):1752-1769, Aug. 1981.
Eror et al., “Self-Compensation in Lanthanum-Doped Strontium Titanate,”Journal of Solid State Chemistry40:85-91, 1981.
Flandermeyer et al., “Oxidation-reduction behavior in La-Doped SrTiO3,” Journal of Materials Science19:2593-2598, 1984.
Frederolse et al., “Electronic Transport in Strontium Titanate,”Physical Review134(2A):A442-A445 (Apr. 20, 1964).
Hanajin et al., “EXAFS analyses of CaTiO3doped with Ce, Nd and U,”Solid State Ionics108:343-348, 1998.
Jurado et al., “Impedance spectroscopy of SR0.97Ti1-xFexO3-δmaterials with moderate Fe-contents,”Solid State Ionics143:251, 2001.
Kuthy et al., “Low voltage varistors based on SrTiO3ceramics,”Materials Science and EngineeringB33:58-66, 1995.
Menesklou et al., “High temperature oxygen sensors based on doped SrTiO3,” Sensors and ActuatorsB59184-189, 1999.
Middleton et al., “Evaluation of Novel Oxide Anodes for Methane Conversion in SOFC Systems,”Proceedings of the Third International Symposium on Solid Oxide Fuel Cells93-4:542-551, 1993.
Pudmich et al., “Characterization of new ceramic anode materials for direct methane oxidation in SOFC,”Electrochemical Society Proceedings99(19):577-582, 1999.
Pudmich et al., “Chromite/titanate based perovskites for application as anodes in solid oxide fuel cells,”Solid State Ionics135:433-438, 2000.
Slater et al., “Synthesis and electrical characterizations of doped perovskite titanates as potential anode materials for solid oxide fuel cells,”Journal of Material Chemistry7(12):2495-2498, Dec. 1, 1997.
Slater et al., “Synthesis and electrical characterization of new anode materials for SOFC,”Proceedings from the Third European Solid Oxide Fuel Cell Forum, 1:416-426, Jun. 2-5, 1998.
Slater et al., “Niobium based tetragonal tungsten bronzes as potential anodes for solid oxide fuel cells: synthesis and electrical characterization,”Solid State Ionics120:125-134, 1999.
Sugimoto et al., Synthesis and structures of carrier doped titanates with the Ruddlesden—Popper structure (Sr0.95La0.05)n+1TinO33n+1(n=1, 2),Solid State Ionics108:315-319, 1998.
Sumathy et al., “Selective oxidation and dehydrogenation of benzyl alcohol on Abb′O3(a=Ba, B-Pb, Ce, Ti and B′=Bi, Cu, Sb)-type perovskite oxides-temperature programmed reduction studies,”Applied Catalysis A: General172:15-22, 1998.
Sunstrom IV et al., “Synthesis structure and properties of LA1-XSRXT103 (0<X<1),”Chemistry of Materials4(2):346-353, Apr. 1, 1992.
Sutija et al., “Measurements of the Electrical Conductivity of Iron-doped Calcium Titanate,”Proceedings of the Third International Symposium on Solid Oxide Fuel Cells93-4:552-561, 1993.
Tufte et al., “Electron Mobility in Semiconducting Strontium Titanate,”Physical Review155(3):796-802, Mar. 15, 1997.
Yahia et al., “Electrical Conduction inp-Type Titanium Sesquioxide,”Physical Review123(4):1257-1261, Aug. 15, 1961.
Yamamoto et al., “Perovskite-type oxides as oxygen electrodes for high temperature oxide fuel cells,”Solid State Ionics22:241-246, 1987.
Yashiro et al., “Electrochemical Properties of Oxide Anode Materials for SOFC,”Electrochemical Society Proceedings16:678-683, 2001.
Zhang et al., “Doped Strontium titanate current liquid and preparation method,”Physics Inst., Chinese Academy of Sciencesvol. 128, No. 2, 1997 (Abstract).
Marina Olga A.
Stevenson Jeffry W.
Battelle (Memorial Institute)
Klarquist & Sparkman, LLP
Lewis Ben
Ryan Patrick
LandOfFree
Cerium-modified doped strontium titanate compositions for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cerium-modified doped strontium titanate compositions for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cerium-modified doped strontium titanate compositions for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4156214