Method for forming activated copper oxide catalysts

Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C502S345000

Reexamination Certificate

active

07744846

ABSTRACT:
A method for forming a copper oxide catalyst includes forming a precipitate of copper hydroxide from a copper salt solution; forming dried particles of copper hydroxide by drying the precipitate at a temperature of less than 30° C.; heating the copper hydroxide particles to form copper oxide; and activating the copper oxide. The copper oxide catalyst includes particles of copper oxide. Copper oxide catalyst particles can preferably include a metastable form of copper oxide. The copper oxide catalyst particles are useful for low-temperature and near-ambient temperature catalysis and/or oxidation of carbon monoxide to carbon dioxide.

REFERENCES:
patent: 3839545 (1974-10-01), Schwab
patent: 4490337 (1984-12-01), Richardson
patent: 5143098 (1992-09-01), Rogers et al.
patent: 5322075 (1994-06-01), Deevi et al.
patent: 5591368 (1997-01-01), Fleischhauer et al.
patent: 5934289 (1999-08-01), Watkins et al.
patent: 6053176 (2000-04-01), Adams et al.
patent: 6323347 (2001-11-01), Chen et al.
patent: 6769437 (2004-08-01), Hajaligol et al.
patent: 6782892 (2004-08-01), Li et al.
patent: 6857431 (2005-02-01), Deevi et al.
patent: 7004993 (2006-02-01), Pithawalla et al.
patent: 7152609 (2006-12-01), Li et al.
patent: 7165553 (2007-01-01), Luan et al.
patent: 7168431 (2007-01-01), Li et al.
patent: 7228862 (2007-06-01), Hajaligol et al.
patent: 7243658 (2007-07-01), Deevi et al.
patent: 2004/0250828 (2004-12-01), Luan et al.
patent: 2005/0211259 (2005-09-01), Gedevanishvili
Richard R. Baker, “Mechanisms of Smoke Formation and Delivery,” Recent Advances in Tobacco Science, vol. 6, 1980, pp. 184-224.
Richard R. Baker, “Variation of the Gas Formation Regions within a Cigarette Combustion Coal During the Smoking Cycle,” Beiträge zur Tabakforschung International, vol. 11, No. 1, Mar. 1981, pp. 1-17.
T-J. Huang et al., “CO Oxidation Behavior of Copper and Copper Oxides,” Catalysis Letters, vol. 87, Nos. 3-4, Apr. 2003, pp. 173-178.
Ren-Xian Zhou et al., “Oxidation of Carbon Monoxide Catalyzed by Copper-Zirconium Composite Oxides,” Applied Catalysis A: General 162, 1997, pp. 213-222.
Meng-Fei Luo et al., “TPR and TPD Studies of CuO/CeO2Catalysts for Low Temperature CO Oxidation,” Applied Catalysis A: General 162, 1997, pp. 121-131.
T-J. Huang et al., “Effect of support modification on reduction and CO oxidation activity of doped ceria-supported copper oxide catalyst,” Catalysis Letters vol. 85, Nos. 1-2, Jan. 2003, pp. 49-55.
J.A. Rodriguez et al., “Reduction of CuO in H2:in situ time-resolved XRD studies,” Catalysis Letters vol. 85, Feb. 2003, Nos. 3-4, pp. 247-254.
W. Liu et al., “Total Oxidation of Carbon Monoxide and Methane over Transition Metal-Fluorite Oxide Composite Catalysts,” J. Catal., 1995, 153, pp. 304-316.
S.H. Taylor et al., “Copper zinc oxide catalysts for ambient temperature carbon monoxide oxidation,” Chem. Commun., 1999, pp. 1373-1374.
D.M. Whittle et al., “Co-precipitated copper zinc oxide catalysts for ambient temperature carbon monoxide oxidation: effect of precipitate ageing on catalyst activity,” Phys. Chem. Chem. Phys., 4, 2002, pp. 5915-5920.
Y. Choi et al., “Kinetics, simulation and insights for CO selective oxidation in fuel cell applications,” J. Power Sources, 2004, 129, pp. 246-254.
M. Haruta, “Size- and support-dependency in the catalysis of gold,” Catal. Today, 1997, 36, pp. 153-166.
M. Haruta et al., “Low-Temperature Oxidation of CO over Gold Supported on TiO2, α-Fe2O3, and Co3O4,” J. Catal., 1993, 144, pp. 175-192.
A. Wolf et al., “A systematic study of the synthesis conditions for the preparation of highly active gold catalysts,” Appl. Catal. A: General, 2002, vol. 226, pp. 1-13.
F. Moreau et al., “The influence of metal loading and pH during preparation on the CO oxidation activity of Au/TiO2catalysts,” Chem. Commun., 2004, pp. 1642-1643.
B. Qiao et al., “Highly effective ferric hydroxide supported gold catalyst for selective oxidation of CO in the presence of H2,” Chem. Commun., 2003, pp. 2192-2193.
W. Yan et al., “Brookite-supported highly stable gold catalytic system for CO oxidation,” Chem. Commun., 2004, pp. 1918-1919.
M. Khoudiakov et al., “Au/Fe2O3nanocatalysts for CO oxidation by a deposition-precipitation technique,” Nanotechnology, 2004, 15, pp. 987-990.
T-J. Huang et al., “Calcination conditions on copper / alumina catalysts for carbon monoxide oxidation and nitric oxide reduction,” Appl. Catal., 1991, vol. 71, pp. 275-282.
J.T. Kummer, “Catalysts for Automobile Emission Control,” Prog. Energy Combust. Sci., 1980, vol. 6, pp. 177-199.
B. Skárman et al., “Morphology and Structure of CuOx/CeO2Nanocomposite Catalysts Produced by Inert Gas Condensation: An HREM, EFTEM, XPS, and High-Energy Diffraction Study,” Chem. Mater., 2002, 14, pp. 3686-3699.
B. Skárman et al.,Carbon Monoxide Oxidation on Nanostructured CuOx/CeO2Composite Particles Characterized by HREM, XPS, XAS, and High-Energy Diffraction, J. Catal., 2002, 211, pp. 119-133.
W. Liu at al., “Transition metal-promoted oxidation catalysis by fluorite oxides: A study of CO oxidation over Cu-CeO2,” Chem. Eng. Journal, 1996, 64, pp. 283-294.
A. Tschöpe et al., “Processing and structural evolution of nanocrystalline Cu-CeO2-xcatalysts,” Mater. Sci. Eng., 1995, A204, pp. 267-271.
G. Avgouropoulos et al., “Selective CO oxidation over CuO-CeO2catalysts prepared via the urea-nitrate combustion method,” Appl. Catal. A: General 244, 2003, pp. 155-167.
J.B .Wang et al., “Synergistic Catalysis of Carbon Monoxide Oxidation over Copper Oxide Supported on Samaria-Doped Ceria,” J. Catal. 208, 2002, pp. 370-380.
Lj. Kundakovic et al., “Reduction characteristics of copper oxide in cerium and zirconium oxide systems,” Appl. Catal. A: General 171, 1998, pp. 13-29.
R. Bechara et al., “Preparation and Characterization of Copper-Thorium Oxide Catalysts. 1. Solid Solution of Copper(II)in Thoria: An ESR Study,” Chem. Mater., 1990, 2, pp. 518-522.
X-y. Jiang et al., “Effect of the addition of La2O3on TPR and TPD of CuO / y-A12O3catalysts,” Appl. Catal. A. General 150, 1997, pp. 131-141.
G.G. Jernigan et al., “Carbon Monoxide Oxidation over Three Different Oxidation States of Copper: Metallic Copper, Copper(I)Oxide, and Copper(II)Oxide-A Surface Science and Kinetic Study,” J. Catal., 1994, 147, pp. 567-577.
V.A. Sadykov et al., Letter to the Editor Comment on “Carbon Monoxide Oxidation over Three Different Oxidation States of Copper: Metallic Copper, Copper(I)Oxide, and Copper(II)Oxide-A Surface Science and Kinetic Study,” J. Catal., 1997, 165, pp. 279-283.
M. O'Keeffe et al., “Thermodynamics of the Formation and Migration of Defects in Cuprous Oxide,” Chem. Phys., Jun. 1, 1962, vol. 36, No. 11, pp. 3009-3013.
K. Nagase et al., “Dynamic Study of the Oxidation State of Copper in the Course of Carbon Monoxide Oxidation over Powdered CuO and Cu2O ” J. Catal., 1999, 187, pp. 123-130.
E.D. Pierron et al., “Copper Oxide on Alumina I. XRD Studies of Catalyst Composition during Air Oxidation of Carbon Monoxide,” J. Catal., 1967, 9, pp. 38-44.
G.I. Golodets, “Heterogeneous Catalytic Reactions Involving Molecular Oxygen,” Elsevier, Amsterdam, 1983, pp. 280-311.
Y. Cudennec et al., “The transformation of Cu(OH)2into CuO, revisited,” Solid State Sciences 5, 2003, pp. 1471-1474.
J.R. Günter et al., “Topotactic Electron Induced and Thermal Decomposition of Copper(II)Hydroxide,” J. Appl. Cryst., 1970, 3, pp. 21-26.
Commonly Owned Applications in Connection with U.S. Appl. No. 11/370,843 U.S. Appl. No. 10/460,617, Preparation of Intermetallics by Metallo-Organic Decomposition, Filed Jun. 13, 2003.
U.S. Appl. No.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for forming activated copper oxide catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for forming activated copper oxide catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming activated copper oxide catalysts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4242466

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.