Patent classifications
C01B32/152
Quinolines, polyquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and methods of their synthesis
Quinolines, polyquinolines, polybenzoquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and processes for producing such materials are provided. The processes utilize a form of an aza-Diels-Alder (Povarov) reaction to first form quinolines and/or polyquinolines. In some such embodiments polyquinolines thus produced are used to form graphene nanoribbon precursors, and molecular segments and graphene nanoribbons. In many such embodiments the graphene nanoribbone precursors are formed from polybenzoquinolines.
Compositions of matter including solid carbon formed by reducing carbon oxides
A method for production of various morphologies of solid carbon product by reducing carbon oxides with a reducing agent in the presence of a catalyst. The carbon oxides are typically either carbon monoxide or carbon dioxide. The reducing agent is typically either a hydrocarbon gas or hydrogen. The desired morphology of the solid carbon product may be controlled by the specific catalysts, reaction conditions, and optional additives used in the reduction reaction. The resulting solid carbon products have many commercial applications.
METHOD FOR CONTROLLABLE SYNTHESIS OF CARBON BASED BATTERY ELECTRODE MATERIAL
Carbon-based electrode materials including graphite particles bridged by hemispheres of fullerene, as well as methods of synthesizing the carbon-based electrode materials, are disclosed. These carbon-based electrode materials may allow for decreased irreversible capacity loss during cycling in lithium-ion battery systems.
METHOD FOR CONTROLLABLE SYNTHESIS OF CARBON BASED BATTERY ELECTRODE MATERIAL
Carbon-based electrode materials including graphite particles bridged by hemispheres of fullerene, as well as methods of synthesizing the carbon-based electrode materials, are disclosed. These carbon-based electrode materials may allow for decreased irreversible capacity loss during cycling in lithium-ion battery systems.
DESIGN OF COMPOSITE MATERIALS WITH DESIRED CHARACTERISTICS
A type of composite material where the matrix material and additive are held together by covalently or non-covalently bound ligands is described. A particularly useful composite material covered by the present invention is a carbon nanotube-reinforced composite material where the matrix consists of a polymer, covalently attached to a linker, where said linker is non-covalently attached to the carbon nanotube.
Methods for the preparation of such composite materials are provided.
SEEDLESS PARTICLES WITH CARBON ALLOTROPES
Carbon materials having carbon aggregates, where the aggregates include carbon nanoparticles and no seed particles, are disclosed. In various embodiments, the nanoparticles include graphene, optionally with multi-walled spherical fullerenes and/or another carbon allotrope. In various embodiments, the nanoparticles and aggregates have different combinations of: a Raman spectrum with a 2D-mode peak and a G-mode peak, and a 2D/G intensity ratio greater than 0.5, a low concentration of elemental impurities, a high Brunauer-Emmett and Teller (BET) surface area, a large particle size, and/or a high electrical conductivity. Methods are provided to produce the carbon materials.
Production of crystalline carbon structure networks
The invention pertains to a process for the production of crystalline carbon structure networks in a reactor 3 which contains a reaction zone 3b and a termination zone 3c, by injecting a thermodynamically stable micro-emulsion c, comprising metal catalyst nanoparticles, into the reaction zone 3b which is at a temperature of above 600? C., preferably above 700? C., more preferably above 900? C., even more preferably above 1000? C., more preferably above 1100? C., preferably up to 3000? C., more preferably up to 2500? C., most preferably up to 2000? C., to produce crystalline carbon structure networks e, transferring these networks e to the termination zone 3c, and quenching or stopping the formation of crystalline carbon structure networks in the termination zone by spraying in water d.
Production of crystalline carbon structure networks
The invention pertains to a process for the production of crystalline carbon structure networks in a reactor 3 which contains a reaction zone 3b and a termination zone 3c, by injecting a thermodynamically stable micro-emulsion c, comprising metal catalyst nanoparticles, into the reaction zone 3b which is at a temperature of above 600? C., preferably above 700? C., more preferably above 900? C., even more preferably above 1000? C., more preferably above 1100? C., preferably up to 3000? C., more preferably up to 2500? C., most preferably up to 2000? C., to produce crystalline carbon structure networks e, transferring these networks e to the termination zone 3c, and quenching or stopping the formation of crystalline carbon structure networks in the termination zone by spraying in water d.
CARBON NANOSTRUCTURE PREBLENDS AND THEIR APPLICATIONS
A method for preparing a preblend of nanostructured carbon, such as nanotubes, fullerenes, or graphene, and a particulate solid, such as polymer beads, carbon black, graphitic particles or glassy carbon involving wet-mixing and followed by optional drying to remove the liquid medium. The preblend may be in the form of a core-shell powder material with the nanostructured carbon as the shell on the particulate solid core. The preblend may provide particularly improved dispersion of single-walled nanotubes in ethylene--olefin elastomer compositions, resulting in improved reinforcement from the nanotubes. The improved elastomer compositions may show simultaneous improvement in both modulus and in elongation at break. The elastomer compositions may be formed into useful rubber articles.
CARBON NANOSTRUCTURE PREBLENDS AND THEIR APPLICATIONS
A method for preparing a preblend of nanostructured carbon, such as nanotubes, fullerenes, or graphene, and a particulate solid, such as polymer beads, carbon black, graphitic particles or glassy carbon involving wet-mixing and followed by optional drying to remove the liquid medium. The preblend may be in the form of a core-shell powder material with the nanostructured carbon as the shell on the particulate solid core. The preblend may provide particularly improved dispersion of single-walled nanotubes in ethylene--olefin elastomer compositions, resulting in improved reinforcement from the nanotubes. The improved elastomer compositions may show simultaneous improvement in both modulus and in elongation at break. The elastomer compositions may be formed into useful rubber articles.