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. |