序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
201 Systems for Preparing Fine Articles and Other Substances US10583024 2004-12-19 US20070265357A1 2007-11-15 Steen Iversen; Karsten Felsvang; Tommy Larsen; Viggo Luthje
This invention relates to controlled preparation of fine particles such as nano-crystalline films and powders with at least one solvent being in a supercritical state. It provides methods, measures, apparatus and products produced by the methods. In other aspects, the invention relates to further treatment of formed particles such as encapsulation of formed primary particles, and methods and measures for collection of formed substances in a batch wise, semi-continuous or continuous manner.
202 Method for Manufacturing High Surface Area Nano-Porous Catalyst and Catalyst Support Structures US11561759 2006-11-20 US20070173402A1 2007-07-26 Jan Prochazka; Timothy Spitler
The present invention provides a process for producing high surface area, nanoporous ceramic oxide catalyst structures and catalyst structures derived from the process. In a method aspect of the present invention, a process of producing high surface area, nanoporous ceramic oxide catalyst structures is provided. The method involves the steps of: a) making an aqueous feedstock solution, wherein the solution comprises a first metal salt and a second metal salt, and wherein the first metal salt is a thermally labile metal salt, and wherein the second metal salt is a water soluble, thermally stable salt (typically an alkali metal salt); b) spray drying the feedstock solution to provide a first intermediate product; c) calcining the first intermediate product to form a second intermediate product; d) washing the second intermediate product to remove the second metal salt and form a third intermediate product; and, e) filtering and drying the third intermediate product, thereby producing a high surface area, nanoporous ceramic oxide catalyst structure with a hollow sphere morphology.
203 Battery positive electrode material US11387806 2006-03-24 US20060222932A1 2006-10-05 Koji Tanoue
Material for the positive electrode of batteries is provided that has good conductivity and can be manufactured more cheaply than AgNiO2. The battery positive electrode material is a conductive chemical compound represented by the general formula AgxNiyO2 (wherein X/Y is smaller than 1 and not smaller than 0.25). The conductive chemical compound is constituted of a crystal that has an X-ray diffraction main peak that is the same as that of AgNiO2 (wherein X=Y=1), and does not exhibit a Ag2O or AgO peak. This conductive compound can be used as an additive to impart conductivity to the silver oxide (Ag2O) of the positive electrode material.
204 Combinatorial discovery of nanomaterials US11068714 2005-03-01 US20060068080A1 2006-03-30 Tapesh Yadav; Clayton Kostelecky
Methods for discover of ceramic nanomaterial suitable for an application by preparing an array of first layer of electrodes and printing ceramic nanomaterial films on the electrodes. A second layer of electrodes is printed on the nanomaterial films of ceramics to form an electroded film array. The electroded film array is sintered. Properties of the sintered electroded film array are measured and one of the array elements with properties suited for the particular application is identified.
205 Method of producing a nickel salt solution US11269083 2005-11-08 US20060067874A1 2006-03-30 Michael Fetcenko; Cristian Fierro; Avram Zallen; Tim Hicks
A method for converting nickel into a nickel salt solution. Nickel is dissolved and reacted in an oxygen-enriched acidic solution to produce a nickel salt solution as illustrated in the following chemical equation, wherein X is a conjugate base: Ni+H2X+½O2->NiX+H2O.
206 Process for the production of iron oxide containing catalysts US11002275 2004-12-03 US20050096216A1 2005-05-05 Keld Johansen; Petru Gordes
A process for the production mixed metal oxide containing catalysts comprising the steps of: dissolution of metals Me=Fe, Ni, Al, Cu, Co, Zn, Cr, in nitric acid providing an acid solution of metal mixed nitrate products, aluminium can be added either as nitrate or hydroxide; addition of a carbonhydrate, an amino acid and/or a carboxylic acid; decomposition at 250-700° C. with free air supply of the acid solution by spraying onto the inner surface of one or more rotary kilns, into a spray calcination fluid bed, into a tower kiln or into a steel band conveyor furnace to iron oxide and NOx; and optionally regeneration of the formed NOx to concentrated nitric acid and recycling of produced nitric acid to the first step.
207 Inorganic dopants, inks and related nanotechnology US10455874 2003-06-06 US06849109B2 2005-02-01 Tapesh Yadav; John Alexander
Ink compositions with modified properties result from using a powder size below 100 nanometers. Colored inks are illustrated. Nanoscale coated, uncoated, whisker inorganic fillers are included. The pigment nanopowders taught comprise one or more elements from the group actinium, aluminum, antimony, arsenic, barium, beryllium, bismuth, cadmuim, calcium, cerium, cesium, chalcogenide, cobalt, copper, dysprosium, erbium, europium, gadolinium, gallium, gold, hafnium, hydrogen, indium, iridium, iron, lanthanum, lithium, magnesium, manganese, mendelevium, mercury, molybdenum, neodymium, neptunium, nickel, niobium, nitrogen, oxygen, osmium, palladium, platinum, potassium, praseodymium, promethium, protactinium, rhenium, rubidium, scandium, silver, sodium, strontium, tantalum, terbium, thallium, thorium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium.
208 Hydrogen storage battery; positive nickel electrode; positive electrode active material and methods for making US10613266 2003-07-03 US20050002855A1 2005-01-06 Michael Fetcenko; Kwo Young; Cristian Fierro
A hydrogen storage battery with improved cycle life and a method for making the same. The battery has a negative electrode with an electrochemically active negative material and a negative electrode capacity and a positive electrode electrochemically coupled with the negative electrode, the positive electrode having a positive electrode capacity and an electrochemically active positive material with a precharge. Also described herein is a positive electrode material for a hydrogen storage battery and a method for making the same. The positive electrode material includes a preoxidized positive active material which is partially non-oxidized. The preoxidized positive material may be used to provide precharge to the positive electrode of a hydrogen storage battery to aid in cell balancing.
209 Compounds of lithium nickel cobalt metal oxide and the methods of their fabrication US10823931 2004-04-14 US20040191161A1 2004-09-30 Chuanfu Wang; Zhanfeng Jiang; Huiquan Liu; Junqing Dong
This invention discloses compounds of lithium nickel cobalt metal oxide and the methods of their fabrication. The formula for said compounds of lithium nickel metal of oxide is LiaNi1-b-cCobMcO2 where 0.97nullanull1.05 , 0.01nullbnull0.30 , 0nullcnull0.10, and M is one or more or the following: manganese, aluminum, titanium, chromium, magnesium, calcium, vanadium, iron, and zirconium. The method for the fabrication of said compounds of lithium nickel cobalt metal oxide includes: (a) fabricating a cobalt nickel hydroxy compound; (b) ballgrinding to evenly mix said cobalt nickel hydroxy compound; a lithium compound and compound of said metal M; (c) calcining said mixture in oxygen at between 600null C. and 720null C. for 1 hour to 10 hours; (d) calcining a second time in oxygen at between 750null C. and 900null C. for 8 hours to 10 hours; (e) cooling the twice calcined compound rapidly; (f) ballgrinding and then sifting the cooled compound to obtain said compound of lithium nickel cobalt metal oxide. The fabrication method of this invention produces said compound containing a high percentage of secondary granules that are formed by the aggregation of crystalline granules. These granules are spherically or elliptically shaped with no halite magnetic domains resulting in a material that has excellent electrochemical properties. Using these materials in the positive electrodes of rechargeable batteries produce batteries with high capacity and good cycle characteristics.
210 Applications and devices based on nanostructured non-stoichiometric substances US09996500 2001-11-27 US06607821B2 2003-08-19 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Nanostructured non-equilibrium, non-stoichiometric materials and device made using the nanonostructured non-equilibrium non-stoichiometric materials are provided. Applications and methods of implementing such devices and applications are also provided. More specifically, the specifications teach the use of nanostructured non-equilibrium, non-stoichiometric materials in polymer and plastic filler applications, electrical devices, magnetic products, fuels, biomedical applications, markers, drug delivery, optical components, thermal devices, catalysts, combinatorial discovery of materials, and various manufacturing processes.
211 Alkaline storage battery and method of manufacturing the same US09812696 2001-03-21 US06605389B2 2003-08-12 Yoshitaka Baba; Motoo Tadokoro
An alkaline storage battery includes a positive electrode active material containing nickel hydroxide as a main component. A part of the surface of the nickel hydroxide is unevenly covered with a cobalt compound having an average oxidation number of larger than +2 and containing alkaline cations. Since only a part of the surface of the nickel hydroxide is covered with the cobalt compound, the nickel hydroxide not covered with the cobalt compound is brought into direct contact with the electrolyte, thus improving the high rate discharging characteristic. Since a part of the surface of the nickel hydroxide is covered with the high-order cobalt compound containing alkaline cations, the high-order cobalt compound with high conductivity produces a highly conductive network within the positive electrode so that the rate of using the active material is improved. In this configuration, the alkaline storage battery with high capacity and excellent high rate discharging characteristic can be provided by using a nickel hydroxide active material which permits nickel hydroxide to be brought into direct contact with an electrolyte regardless with high order cobalt oxide on the surface of nickel hydroxide.
212 Nanotechnology for magnetic components US10147835 2002-05-17 US06602543B2 2003-08-05 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Nanostructured non-stoichiometric materials are disclosed. Novel magnetic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel magnetic devices and products.
213 Nanotechnology for biomedical products US10147829 2002-05-17 US06572672B2 2003-06-03 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Nanostructured non-stoichiometric materials are disclosed. Novel biomedical materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel biomedical products.
214 Nanotechnology for electrical devices US10147837 2002-05-17 US06554609B2 2003-04-29 Tapesh Yadav; Roger Dirstine; John Alexander
Nanostructured non-stoichiometric non-equilibrium materials are disclosed. Novel electromagnetic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel electrical devices and products.
215 Methods of synthesis for nanostructured oxides and hydroxides US09663876 2000-09-15 US06517802B1 2003-02-11 Tongsan D. Xiao; Peter R. Strutt; Bernard H. Kear; Huimin Chen; Donald M. Wang
A chemical synthetic route for nanostructured materials that is scalable to large volume production, comprising spray atomization of a reactant solution into a precursor solution to form a nanostructured oxide or hydroxide precipitate. The precipitate is then heat-treated followed by sonication, or sonicated followed by heat treatment. This route yields nanostructured doped and undoped nickel hydroxide, manganese dioxide, and ytrria-stabilized zirconia. Unusual morphological superstructures may be obtained, including well-defined cylinders or nanorods, as well as a novel structure in nickel hydroxide and manganese dioxide, comprising assemblies of nanostructured fibers, assemblies of nanostructured fibers and agglomerates of nanostructured particles, and assemblies of nanostructured fibers and nanostructured particles. These novel structures have high percolation rates and high densities of active sites, rendering them particularly suitable for catalytic applications.
216 Method of preparing metal containing compounds using hydrodynamic cavitation US10047452 2002-01-15 US20020193254A1 2002-12-19 William R. Moser; Oleg V. Kozyuk; Josef Find; Sean Christian Emerson; Ivo M. Krausz
A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element to produce cavitation bubbles, and a second element that creates a pressure zone sufficient to collapse the bubbles. The process is useful for the preparation of mixed metal oxide catalysts and materials for piezoelectrics and superconductors.
217 Nanotechnology for inks and dopants US10150722 2002-05-17 US20020176987A1 2002-11-28 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Novel inks and dopant materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel ink and dopant-based products.
218 Nanotechnology for photonic and optical components US10150201 2002-05-17 US20020170593A1 2002-11-21 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Nanostructured non-stoichiometric materials are disclosed. Novel photonic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel photonic and optical applications.
219 Nanotechnology for magnetic components US10147835 2002-05-17 US20020160190A1 2002-10-31 Tapesh Yadav; Ming Au; Bijan Miremadi; John Freim; Yuval Avniel; Roger Dirstine; John Alexander; Evan Franke
Nanostructured non-stoichiometric materials are disclosed. Novel magnetic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel magnetic devices and products.
220 Process for preparing metal nitrates from the corresponding metals US09726067 2000-11-29 US06468494B2 2002-10-22 Thomas E. Nappier; Alex T. Magdics
The invention relates to a process for preparing metal nitrates from the corresponding metal wherein the metal is selected from silver, cadmium, bismuth and the metals of atomic number 24-30. The process comprises (A) providing a reactor containing (a) the metal, (b) nitric acid, and (c) water wherein the initial concentration of the nitric acid in the water in the reactor is from about 50% to about 80% by weight, and the reactor is free of (1) added fuming nitric acid, (2) added chromium compounds when the metal is iron, and (3) added oxygen, and when the metal is nickel the reactor contains less than 500 g/l of any added nickel nitrate hexahydrate, and (B) maintaining the temperature within the reactor at a temperature to facilitate the formation of the metal nitrate and to maintain the produced metal nitrate in the molten state; (C) maintaining the pressure within the reactor at between atmospheric pressure up to about 100 psig; and (D) recovering the metal nitrate from the reactor, provided that when the metal is iron, any recovered iron nitrate is not recycled. The process of the present Invention results in the formation of metal nitrates and more particularly aqueous solutions of metal nitrates containing reduced amounts of ammonium nitrate.
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