Patent application number | Description | Published |
20090165369 | METHODS AND COMPOSITIONS FOR MULTI-LAYER NANOPARTICLES - Compositions of multi-layer nanoparticies and methods for making the multi-layer nanoparticles are provided. The multi-layer nanoparticle can include a core-shell structure including a core material covered by a multi-layer shell. The multi-layer shelled nanoparticles can be produced using template particles. In one embodiment, the template particle can be provided including a shell layer formed over a core material. One or more other shell layers can then be formed on the template particle and thereby forming a core-shell structured nanoparticle with a diameter of about 1 μm or less. | 07-02-2009 |
20090263568 | RAPID GENERATION OF CARBON FILAMENT STRUCTURES OF CONTROLLED GEOMETRIES AT LOW TEMPERATURES - Exemplary embodiments provide methodologies for generating structures of filamentous carbon (or carbon filaments) with controlled geometries. In one exemplary embodiment of forming the carbon filament structure, a metal template can be exposed to a fuel rich gaseous mixture to form a carbon filament structure at an appropriate gas flow and/or at an appropriate temperature on the metal template. The metal template can have one or more metal surfaces with controlled geometries. Carbon filament structures can then be grown on the metal surfaces having corresponding geometries (or shapes) in the growth direction. The carbon filament structure can be two or three dimensional and can have high density. In various embodiments, the metal template can be removed to leave a self-supporting carbon filament structure. | 10-22-2009 |
20090317557 | Process To Make Core-Shell Structured Nanoparticles - Disclosed is a process for making a composite material that contains core-shell structured nanoparticles. The process includes providing a precursor in the form of a powder a liquid and/or a vapor of a liquid that contains a core material and a shell material, and suspending the precursor in an aerosol gas to produce an aerosol containing the precursor. In addition, the process includes providing a plasma that has a hot zone and passing the aerosol through the hot zone of the plasma. As the aerosol passes through the hot zone of the plasma, at least part of the core material and at least part of the shell material in the aerosol is vaporized. Vapor that contains the core material and the shell material that has been vaporized is removed from the hot zone of the plasma and allowed to condense into core-shell structured nanoparticles. | 12-24-2009 |
20090317637 | Material With Core-Shell Structure - Disclosed is a material having a composite particle, the composite particle including an outer shell and a core. The core is made from a lithium alloying material and the outer shell has an inner volume that is greater in size than the core of the lithium alloying material. In some instances, the outer mean diameter of the outer shell is less than 500 nanometers and the core occupies between 5 and 99% of the inner volume. In addition, the outer shell can have an average wall thickness of less than 100 nanometers. | 12-24-2009 |
20090317719 | Material With Core-Shell Structure - Disclosed is a material having a composite particle. The composite particle includes an outer shell containing an element such as carbon, nitrogen, oxygen or sulfur and an inner core made from a lithium alloying material such as tin, silicon, aluminum and/or germanium. If the outer shell is made from carbon, the outer shell of the composite particle has an average thickness of less than 20 nanometers and the composite particle has an outer mean diameter of less than 100 nanometers. In some instances, the inner core is made from tin, a tin binary alloy, a tin tertiary alloy or a tin quaternary alloy. | 12-24-2009 |
20100215960 | HOLLOW CARBON SPHERES - A hollow carbon sphere having a carbon shell and an inner core is disclosed. The hollow carbon sphere has a total volume that is equal to a volume of the carbon shell plus an inner free volume within the carbon shell. The inner free volume is at least 25% of the total volume. In some instances, a nominal diameter of the hollow carbon sphere is between 10 and 180 nanometers. | 08-26-2010 |
20100301288 | PREPARATION OF NUCLEAR FUEL COMPOSITION AND RECYCLING - A composition is prepared by heating particles of a nuclear fuel material in a metal salt that decomposes below 1000° C. to form a metal oxide. Magnesium nitrate hexahydrate is an example of such a metal salt. A resulting composition includes the particles homogeneously dispersed in a matrix of magnesium oxide. After the composition is used in a nuclear reactor, the now spent composition is removed, cooled, and the matrix is dissolved away from the spent particles, which can be reused in another nuclear fuel composition. The recovered fuel particles also contain some fission products that provide a radiation barrier that discourages theft of the recovered fuel particles. | 12-02-2010 |
20100310784 | PROCESS TO MAKE STRUCTURED PARTICLES - Disclosed is a process for making a composite material that contains structured particles. The process includes providing a first precursor in the form of a dry precursor powder, a precursor liquid, a precursor vapor of a liquid and/or a precursor gas. The process also includes providing a plasma that has a high field zone and passing the first precursor through the high field zone of the plasma. As the first precursor passes through the high field zone of the plasma, at least part of the first precursor is decomposed. An aerosol having a second precursor is provided downstream of the high field zone of the plasma and the decomposed first material is allowed to condense onto the second precursor to from structured particles. | 12-09-2010 |
20110006254 | PROCESS TO MAKE ELECTROCHEMICALLY ACTIVE/INACTIVE NANOCOMPOSITE MATERIAL - A process for making an first material/second material nanocomposite is disclosed. The process can include providing a precursor that contains an electrochemically active and an electrochemically inactive material. Thereafter, the precursor can be suspended in an aerosol gas to produce an aerosol and a plasma having a high field zone can be provided. The aerosol can be passed through the high field zone of the plasma and result in the vaporization of at least part of the precursor in the aerosol. The precursor that has been vaporized in the high field zone is subsequently removed therefrom and allowed to condense into an first material/second material nanocomposite with at least one electrochemically active material. | 01-13-2011 |
20110180513 | HALLOW CARBON SPHERES - A hollow carbon sphere having a carbon shell and an inner core is disclosed. The hollow carbon sphere has a total volume that is equal to a volume of the carbon shell plus an inner free volume within the carbon shell. The inner free volume is at least 25% of the total volume. In some instances, a nominal diameter of the hollow carbon sphere is between 10 and 180 nanometers. | 07-28-2011 |
20130276583 | AEROSOL REDUCTION/EXPANSION SYNTHESIS (A-RES) FOR ZERO VALENT METAL PARTICLES - Various embodiments provide methods of forming zero valent metal particles using an aerosol-reductive/expansion synthesis (A-RES) process. In one embodiment, an aerosol stream including metal precursor compound(s) and chemical agent(s) that produces reducing gases upon thermal decomposition can be introduced into a heated inert atmosphere of a RES reactor to form zero valent metal particles corresponding to metals used for the metal precursor cot pound(s). | 10-24-2013 |