Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2008-04-22
2008-04-22
Ruthkosky, Mark (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S218100, C029S002000, C029S623500
Reexamination Certificate
active
07361426
ABSTRACT:
A method of enhancing catalyst reactivity includes (1) depositing a conductive oxide on a suitable substrate, (2) depositing a thin film of catalyst on top of the conductive oxide to form a sandwich structure, and (3) annealing the structure at a, suitable temperature so that the thin film of catalyst forms nano structure hillocks that enhance the catalyst reactivity. An improved fuel cell may use an anode or cathode, or both, formed according to the above method. Such an anode or cathode will include a catalyst nano hillock structure formed on top of a conductive material layer.
REFERENCES:
patent: 4182796 (1980-01-01), Heller et al.
patent: 4427749 (1984-01-01), Graetzel et al.
patent: 5612560 (1997-03-01), Chivukula et al.
patent: 6326097 (2001-12-01), Hockaday
patent: 2000005606 (2000-01-01), None
Kim et al., “Microstructure of thermal hillocks on blanket Al thin films”, Thin Solid Films, 371 (2000) 278-282.
Iwamura et al., “Effect of aluminum oxide caps on hillock formation in aluminum alloy films”, thin Solid Films, 349, (1999), 191-198.
Electrochemistry Encyclopedia, “Electrochemical capacitors,” (http://electrochem.cwru.edu/ed/encycl/), Mar. 2003.
Intrinsic Stress Dependence of PT Hillock Formation and its related Electrical Properties of SBT Capacitor Integrated Ferroelectrics, New York, NY US, vol. 25, No. 1, Mar. 7, 1999 pp. 299-309 XP009014487.
Summerfelt, Scott R et al: Pt hillock formation and decay Proceedings of the 1994 MRS Fall Meeting: Boston, MA USA Nov. 29-Dec. 2, 1994 vol. 361 Nov. 29, 1994 pp. 257-262 XP009014485.
Lee Jeong Soo et al: Microstructural characterization of PT/TI and RuO2 electrodes on SiO2/Si annealed in the oxygen ambient Proceedings of the 1996 MRS Spring Symposium, San Francisco, CA USA col. 433, 1996 XP009014486 pp. 175-180.
Database Compendex Online Engineering Information, Inc., NY, NY USA: Baldelli Steve et al: Surface enhanced sum frequency generation of carbon monoxide adsorbed on platinum nanoparticle arrays Database accession No. E2000525408621 XP002250624.
Baldelli Steve et al: Surface enhanced sum frequency generation of carbon monoxide adsorbed on platinum nanoparticle arrays Journal of Chem. Physcis Oct. 2000 American Inst of Physics, Woodbury, NY, USA vol. 113 No. 13 XP002250623.
Baldelli, S.,et al. “Surface enhanced sum frequency generation of carbon monoxide adsorbed on platinum nanoparticle arrays,” Journal of Chemical Physics, 113:5432-8, Jul. 6, 2000.
“Pt Hillock Formation and Decay,” by Summerfelt, S.R. et al. in “Ferroelectric Thin Films IV” Tuttle, B. A. et al., eds., Materials Research Society Symp. Proc., 361: 257-262, 1995.
Hewlett--Packard Development Company, L.P.
Ruthkosky Mark
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