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Class 423/263 - RARE EARTH COMPOUND (AT. NO. 21, 39, OR 57-71)


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes in which the product is a compound
No. of patents: 684
Last issue date: 05/29/2012


1                      
NumberTitleIssue Date
8187562Method for producing cerium dioxide nanopowder by flame spray pyrolysis and cerium dioxide nanopowder produced by the method
Disclosed is a method for producing a cerium dioxide nanopowder by flame spray pyrolysis. The method comprises dissolving a cerium compound in an organic solvent to prepare a precursor solution, atomizing the precursor solution into microdroplets using an ultrasonic...
05/29/2012
8173091Method for preparing nanophosphor from metal hydroxy carbonate and nanophosphor prepared by the method
Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in...
05/08/2012
8133461Nano-YAG:Ce phosphor compositions and their methods of preparation
Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)3(Al,B)5(O,C)12:Ce3+, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes...
03/13/2012
8124037Perovskite materials for solid oxide fuel cell cathodes
An improved LSCF 6428 perovskite material of the type La12zSrx+zCo0.2+aFe0.8+bO3−δ wherein x=0.4, z=(0-0.1), a=(0.01-0.04), and b=(0.05-0.15) for use as an SOFC cathode having increased electronic and ionic c...
02/28/2012
8114370Method for preparing cerium carbonate and method for preparing cerium oxide powder
The present invention relates to a method for preparing cerium carbonate that can improve yield and productivity of cerium carbonate, cerium carbonate powder, and a method for preparing cerium oxide using the same. The method for preparing cerium carbonate comprises...
02/14/2012
8075860Thermal spray powder and method for forming a thermal spray coating
A thermal spray powder includes granulated and sintered yttria particles obtained by granulating and sintering a raw material powder in air or oxygen. The primary particles constituting the granulated and sintered yttria particles have an average particle size betwe...
12/13/2011
8071064XLI2MGHN hydrides as hydrogen storage compounds
State-of-the-art electronic structure calculations yield results consistent with the observed compound SiLi2Mg and provide likelihood of the availability of IrLi2Mg and RhLi2Mg. Similar calculations provide likelihood of the availabi...
12/06/2011
8029754Cerium oxide powder and process for producing the same
The present invention relates to cerium oxide powder and a process for producing the same. The cerium oxide powder of the invention, which is produced by mixing a cerium source such as cerium oxide, cerium hydroxide and cerium carbonate with an alkali metal compound...
10/04/2011
8021636Preparation of rare-earth halide blocks
The invention relates to a method of preparing a polycrystalline block of a halide of formula AeLnfX(3f+e) in which Ln represents one or more rare earths, X represents one or more halogen atoms selected from the group consisting of C...
09/20/2011
8012442Method of forming mixed rare earth nitride and aluminum nitride films by atomic layer deposition
A method is provided for depositing a gate dielectric that includes at least two rare earth metal elements in the form of a nitride or an aluminum nitride. The method includes disposing a substrate in a process chamber and exposing the substrate to a gas pulse conta...
09/06/2011
7993618Method for making metal oxide nanocrystal
A method for making the metal oxide includes the following steps: mixing a metal nitrate with a solvent of octadecyl amine, and achieving a mixture; agitating and reacting the mixture at a reaction temperature for a reaction period; cooling the mixture to a cooling ...
08/09/2011
7976810Method for preparing cerium carbonate powder
In a method for preparing cerium carbonate powder by mixing a cerium precursor solution with a carbonate precursor solution and carrying out a precipitation reaction, wherein cerium carbonate is controlled to have an orthorhombic crystal structure, a hexagonal cryst...
07/12/2011
7968070Process for the production of metal oxide powders
Process for the production of a metal oxide powder having a BET surface area of at least 20 m2/g by reacting an aerosol with oxygen in a reaction space at a reaction temperature of more than 700° C. and then separating the resulting powder from gaseous s...
06/28/2011
7968071XLiMgHhydrides as hydrogen storage compounds
State-of-the-art electronic structure calculations provide the likelihood of the availability of AlLi2MgHn, ScLi2MgHn, TiLi2MgHn, VLi2MgHn, CrLi2MgHn, MnLi
06/28/2011
7959885Nanoparticle synthesis by solvothermal process
A solvothermal process for making inorganic nanoparticles is described. Inorganic nanoparticles can be produced by forming a suspension or solution comprising at least one group II-IV and lanthanide metal inorganic salt in a first medium, disposing the suspension or...
06/14/2011
7951348p-Type transparent conducting oxides and methods for preparation
A facile, low temperature and low pressure method for the preparation of a wide range of phase pure ABO2 compositions. ...
05/31/2011
7943106Rare earth nanorods
A process for the production of nanorods containing a rare earth metal is disclosed. The process comprises the steps of: (a) increasing the pH of an aqueous solution of the formula MX3, where M is a trivalent rare earth metal cation and X is a monovalent ...
05/17/2011
7939041Composite oxides or hydroxides comprising alumina and zirconia for automotive catalyst applications and method of manufacturing
An improved method for the formation of composite hydroxides or oxides comprising, on an oxide basis, Al2O3 and ZrO2, and optionally CeO2, La2O3, Nd2O3, Pr6O11
05/10/2011
7939040Composition based on cerium oxide and on zirconium oxide having a high reducibility and high specific surface, methods for the preparation thereof and use as a catalyst
The inventive composition is based on cerium oxide and on zirconium oxide in an atomic proportion Ce/Zr of at least 1, and has a reducibility rate of at least 70% and a surface area of at least 15 m; 2; /g. This composition is obtained by a method in which: a mixtur...
05/10/2011
7935325Rare earth-activated aluminum nitride powders and method of making
Rare earth-activated aluminum nitride powders are made using a solution-based approach to form a mixed hydroxide of aluminum and a rare earth metal, the mixed hydroxide is then converted into an ammonium metal fluoride, preferably a rare earth-substituted ammonium a...
05/03/2011
7927569Methods for producing gallium and other oxo/hydroxo-bridged metal aquo clusters
Metallic clusters can be produced by contacting a metal salt such as a metal nitrate with an organic reducing agent. Metals can be selected from a group consisting of metals exhibiting octahedral coordination, and nitrates of the selected metal or metals are contact...
04/19/2011
7897128Preparation of complex metal oxides
The present invention provides a process for making a complex metal oxide comprising the formula AxByOz. The process comprises the steps of: (a) reacting in solution at a temperature of between about 75° C. to about 100° C. at leas...
03/01/2011
7879303Flame synthesis of metal salt nanoparticles, in particular calcium and phosphate comprising nanoparticles
Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mi...
02/01/2011
7867463Process for producing cerium oxide nanocrystals
The present invention provides a new method for the production of cerium oxide (CeO2) nanocrystals having various sizes and various shapes via hydrolytic sol-gel reactions or non-hydrolytic sol-gel reactions. More specifically, the method synthesizing cer...
01/11/2011
7837967Thermal spray powder and method for forming thermal spray coating
A thermal spray powder contains particles composed of an oxide of any of the rare earth elements having an atomic number of 39 or from 59 to 70. The crushing strength of the particles is 80 MPa or greater. The ratio of bulk specific gravity to true specific gravity ...
11/23/2010
7820124Monodisperse nanoparticles and method of making
A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is sub...
10/26/2010
7754173Rare earth oxide nanocrystals and methods of forming
A method of forming rare earth oxide nanocrystals include the steps of dissolving a rare earth including compound in a solution containing at least one organic solvent, heating the solution to a temperature of at least 160° C., wherein a concentration of the rare e...
07/13/2010
7727500Process for producing metal peroxide films
Disclosed are adhesive coating compositions containing a metal peroxide for producing clear colorless adhesive coatings on substrates, particularly micro particulate substrates. In one preferred embodiment the nanoparticle coatings are chemically active and function...
06/01/2010
7722846Method for preparing electroconductive mayenite type compound
Provided is a method for preparing an electroconductive mayenite type compound with good properties readily and stably at low cost. A production method of an electroconductive mayenite type compound comprising a step of subjecting a precursor to heat treatmen...
05/25/2010
7713505XLiNcompounds and their hydrides as hydrogen storage materials
State-of-the-art electronic structure calculations provide the likelihood of the availability of YLi3N2, ZrLi3N2, NbLi3N2, MoLi3N2, TcLi3N2, RuLi3
05/11/2010
7713504Method for producing mixed metal oxides and metal oxide compounds
A process to produce mixed metal oxides and metal oxide compounds. The process includes evaporating a feed solution that contains at least two metal salts to form an intermediate. The evaporation is conducted at a temperature above the boiling point of the feed solu...
05/11/2010
7708968Nano-scale metal oxide, oxyhalide and oxysulfide scintillation materials and methods for making same
Crystalline scintillator materials comprising nano-scale particles of metal oxides, metal oxyhalides and metal oxysulfides are provided. The nano-scale particles are less than 100 nm in size. Methods are provided for preparing the particles. In one method, used to f...
05/04/2010
7708969Method of forming metal oxide
In a method and an apparatus for forming metal oxide on a substrate, a source gas including metal precursor flows along a surface of the substrate to form a metal precursor layer on the substrate. An oxidizing gas including ozone flows along a surface of the metal p...
05/04/2010
7700059Metal oxide solid solution and use as oxygen storage composition and UV light shielding agent
Disclosed is a method for preparing a metal oxide solid solution in nano size. The metal oxide solid solution is prepared by reacting a reactant mixture containing water and at least two water-soluble metal compounds at 200 to 700° C. under a pressure of 180 to 550...
04/20/2010
7700060Yttria thermal spray powder and method for forming a thermal spray coating
A thermal spray powder contains granulated and sintered yttria particles and fine yttria particles, the average particle diameter of the fine yttria particles being no more than 1 μm. The content of the fine yttria particles in the thermal spray powder is 1,000 to ...
04/20/2010
7691352Process for preparation of perovskite
A new set of additives to be sued in the preparation of inorganic materials; especially of perovskite nature is proposed. The chemical compositions of the perovskites prepared in the presence of the mentioned additives are found to be more homogenous, leading to bet...
04/06/2010
7682584Cerium carbonate powder, cerium oxide powder, method for preparing the same, and CMP slurry comprising the same
Method of preparing cerium carbonate powder by mixing a cerium precursor solution with a carbonate precursor solution and subjecting the mixture solution to a precipitation reaction, wherein the concentration of cerium in the cerium precursor solution ranges from 1M...
03/23/2010
7678355Method for producing perovskite-type complex oxide
A method for producing a highly crystalline perovskite-type complex compound is provided that exhibits stably a high Seebeck coefficient and a low electric resistivity even at higher temperatures. A method for producing a complex perovskite-type compound with less e...
03/16/2010
7670578Method for preparing rare-earth halide blocks
The invention relates to a method of preparing a polycrystalline block of a halide of formula AeLnfX(3f+e) in which Ln represents one or more rare earths, X represents one or more halogen atoms selected from the group consisting of C...
03/02/2010
7666378High quantum yield white phosphors and methods of making
Embodiments of the present disclosure include a composition comprising a Gd3+-Eu3+ white phosphor composition, methods of making the composition, and the like. ...
02/23/2010
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