Entries |
Document | Title | Date |
20080254972 | Methods of forming activated carbons - Enhanced methods for preparing activated carbons have been discovered. In order to form an activated carbon, a carbon precursor material is coated with a phosphorus based chemical solution and physically activated. An activated carbon may also be formed by coating a green carbon precursor with a chemical solution that chemically reacts with carbon, carbonizing the resulting material, and physically activating the material during at least a portion of the carbonizing step. An activated carbon may also be formed by milling a carbon material to a predetermined particle size, then activating the milled particles. In another enhancement, an activated carbon is formed by coating a carbon or carbon precursor with nanoparticles, carbonizing if the carbon is a carbon precursor, then catalytically activating in air and an inert gas, and physically activating in steam or carbon dioxide. An activated carbon may also be formed by physically activating a previously chemically activated carbon. | 10-16-2008 |
20090011930 | Cerium Compositions and Methods of Making the Same - The present invention is directed to cerium compositions and methods for making such metal oxide compositions, specifically, such metal oxide compositions having high surface area, high metal/metal oxide content, and/or thermal stability with inexpensive and easy to handle materials. | 01-08-2009 |
20090093360 | METHOD FOR PREPARING CATALYST SUPPORTS AND SUPPORTED CATALYSTS FROM SINGLE WALLED CARBON NANOTUBES - A new method for preparing a supported catalyst is herein provided. A carbon nanotube structure such as a rigid porous structure is formed from single walled carbon nanotubes. A metal catalyst is then loaded or deposited onto the carbon nanotube structure. The loaded carbon nanotube is preferably ground to powder form. | 04-09-2009 |
20100035750 | Carbon-coated metal oxide nano-particles and method of preparing the same - A method of preparing carbon-coated metal oxide nano-particles and carbon-coated metal oxide nano-particles prepared with the same method are described. The method includes the following steps at least. A precursor of a polymer is polymerized on metal oxide nano-particles to form polymer-coated metal oxide nano-particles. Then, pyrolysis is conducted to carbonize the polymer coated on the metal oxide nano-particles, so as to form carbon-coated metal oxide nano-particles. | 02-11-2010 |
20100152030 | PHOTOCATALYTIC COATING - In one aspect, the present invention is directed to a coating composition. The coating composition comprises photocatalytic particles and an alkali metal silicate binder comprising a boric acid, borate, or combination thereof. In another aspect, the present invention is directed to a coated article. The coated article has a photocatalytic coating with improved durability on its external surface that is formed from the aforesaid coating composition. | 06-17-2010 |
20100160155 | Carbon Nanotubes with Nano-Sized Particles Adhered thereto and Method of Preparing Same - A carbon nanotube film is disclosed which includes a plurality of macroscopically aligned carbon nanotubes, and a plurality of nanoparticles which are adhered to the surfaces of the carbon nanotubes. A method for constructing a carbon nanotube film is also disclosed. This method includes multiple steps. First, a plurality of macroscopically aligned carbon nanotubes are formed on a substrate. Next, a solution including a dispersion of nanoparticles in a solvent is applied onto the carbon nanotubes. Then, the solvent is evaporated so that the nanoparticles remain and are adhered to the carbon nanotubes. | 06-24-2010 |
20110086756 | METHOD FOR PREPARING SILICON INTERCALATED MONOLAYER GRAPHENE - A method of preparing the electronic material called silicon intercalated epitaxial monolayer graphene comprises the steps of growing large scale high-quality graphene on metal surface, depositing silicon on the prepared epitaxial graphene and annealing to high temperature to intercalate the silicon to the interface of graphene and metal surface. Depending on the quantity of the silicon deposited on the graphene surface, the numbers of the silicon layers on the interface can be controlled and adjusted. | 04-14-2011 |
20120028792 | METHOD FOR PRODUCING ELECTRODE CATALYST, AND ELECTRODE CATALYST - A method for producing an electrode catalyst, comprising a step of calcining a precursor of the electrode catalyst under conditions under which a second material defined below can change into a carbonaceous material,
| 02-02-2012 |
20120077670 | POROUS CARBON AND METHOD OF MANUFACTURING SAME - A porous carbon and a method of manufacturing the same are provided, which can inhibit metal particles from being oxidized and can keep the effect obtained by adding the metal particles for a long period of time by allowing the metal particles to disperse sufficiently. | 03-29-2012 |
20120083408 | CARBON NANOTUBE AND METHOD FOR PRODUCING SAME - There is provided a high-purity carbon nanotube, which can be produced with simple purification by causing graphite to be hardly contained in crude soot obtained immediately after being synthesized by arc-discharge, and a method for producing the same. Soot containing carbon nanotubes produced by arc-discharge using an anode which contains amorphous carbon as a main component is heated at a temperature of not lower than 350° C. to be burned and oxidized, immersed in an acid, heated at a temperature, which is not lower than the heating temperature in the previous burning and oxidation and which is not lower than 500° C., to be burned and oxidized, and immersed in an acid again. | 04-05-2012 |
20120094825 | METHOD FOR PRODUCING ELECTRODE CATALYST - A method for producing an electrode catalyst, comprising a step of calcining a precursor of the electrode catalyst under conditions under which a second material defined below can change into a carbonaceous material, the precursor having been obtained by continuously hydrothermally reacting a mixture containing a first material defined below and the second material defined below in the presence of supercritical or subcritical water, wherein
| 04-19-2012 |
20120115711 | PHOTOCATALYST COMPRISING TiO2 AND ACTIVATED CARBON MADE FROM DATE PITS - A photocatalyst is provided that comprises activated carbon produced from date pits, impregnated with TiO | 05-10-2012 |
20120149554 | GRAPHENE/NANO-TITANIUM DIOXIDE COMPOSITES AND METHODS FOR PREPARING THE SAME - Disclosed herein are methods for preparing graphene/nano-titanium dioxide composites. About 500 to 10,000 parts by weight of nano-titanium dioxide and about 1 part by weight of graphene are distributed in a water-ethanol (about 2:1 to 3:1 by volume) solution to obtain a dispersion. The nano-titanium dioxide and graphene within the dispersion are allowed to react under a pressure of about 10 to 15 MPa and a temperature of about 100 to 200° C. thereby producing the graphene/nano-titanium dioxide composites. | 06-14-2012 |
20120157297 | CATALYSTS AND METHODS OF PREPARATION OF CATALYST - Presented are one or more aspects and/or one or more embodiments of catalysts, methods of preparation of catalyst, methods of deoxygenation, and methods of fuel production. | 06-21-2012 |
20120329643 | NOBLE METAL FINE PARTICLE SUPPORTED CATALYST AND METHOD FOR PRODUCING THE CATALYST, AND PURIFYING CATALYST - The noble metal fine particle supported catalyst of the present invention includes a substrate, and a porous membrane formed on the substrate. The porous membrane contains support particles, noble metal fine particles, and an inorganic binder. In the porous membrane, the noble metal fine particles are supported on surfaces of the support particles, and the support particles form secondary particles each having a porous structure. The porous membrane is formed by binding, with the inorganic binder, the secondary particles formed of the support particles so that a gap is present at least partly between the secondary particles adjacent to each other. | 12-27-2012 |
20140011672 | CARBON CATALYST, METHOD OF PRODUCING SAME, AND ELECTRODE AND BATTERY EACH UTILIZING SAME - Provided is a method of producing a carbon catalyst having an improved activity. The method of producing carbon catalyst including a carbonization step of carbonizing raw materials containing an organic compound as a carbon source, a metal, and an electrically conductive carbon material to produce a carbonized material; a metal impregnation step of impregnating the carbonized material with a metal; and a heat treatment step of subjecting the carbonized material impregnated with the metal to a heat treatment. | 01-09-2014 |
20140057779 | METHOD OF PREPARING MULTICOMPONENT METAL-HYBRID NANOCOMPOSITE USING CO-GASIFICATION, AND MULTICOMPONENT METAL-HYBRID NANOCOMPOSITE PREPARED THEREBY - The present subject matter provides a method of preparing a multicomponent metal-hybrid nanocomposite using co-gasification, in which a multicomponent metal-hybrid nanocomposite can be prepared by a one-step process without using a complicated process including the steps of supporting-drying-calcining-annealing and the like at the time of preparing a conventional alloy catalyst, and provides a multicomponent metal-hybrid nanocomposite prepared by the method. The method is advantageous in that a multicomponent metal-hybrid nanocomposite can be synthesized by a simple process of simultaneously gasifying two kinds of metal precursors, and in that an additional post-treatment process is not required. | 02-27-2014 |
20140323292 | SUPPORTED METAL CATALYST AND METHOD OF MAKING THE CATALYST - Provided is a method for making a supported metal catalyst. The method includes forming a mixture comprising a high surface area support, a reducing agent precursor that decomposes to produce reducing gases below about 1200° C., and a metal catalyst precursor. The mixture is heated to a temperature sufficient to decompose the reducing agent precursor to produce a reducing agent, and then cooled to form the supported metal catalyst. | 10-30-2014 |
20140349843 | Structured Cathode Catalysts for Fuel Cell Application Derived From Metal-Nitrogen-Carbon Precursors, Using Hierarchically Structured Silica as a Sacrificial Support - Methods for forming novel fuel cell catalysts are described. The catalyst has a physical structure that is the inverse image of a plurality of hierarchically structured sacrificial support particles. The particles may be formed independently and then infused with one or more transitional metallic salts and nitrogen carbon precursors, or the sacrificial support precursors, transitional metallic salts, and nitrogen carbon precursors may all be combined in such a way that a hierarchically structured sacrificial support with the infused transitional metallic salts and nitrogen carbon precursors is formed in a single step. The infused sacrificial support is then pyrolized, at least once, and the sacrificial support is removed, resulting in the catalyst. | 11-27-2014 |
20150087502 | Process for preparing a catalytic composition for the hydroconversion of petroleum fractions - The invention relates to a method of preparing a catalytic composition comprising at least one non-noble metal from group VIII and at least one metal from group VIB of the periodic table. The invention also relates to the catalytic composition thus produced, which has a high specific activity in reactions involving the hydroprocessing of light and intermediate fractions, preferably in reactions involving the hydrotreatment of hydrocarbon streams, including hydrodesulphurisation (HDS), hydrodenitrogenation (HDN) and hydro-dearomatisation (HDA). | 03-26-2015 |
20150133291 | Hydrothermal Stability of Oxides With Carbon Coatings - Catalyst support materials that are coated with a thin carbon over-layer and methods for making the same are shown and described. In general, a supporting oxide material, which may or may not have a catalytic material already deposited on the surface, is coated with a thin carbon layer. | 05-14-2015 |
20150321173 | Process for the hydrothermal treatment of high molar mass biomaterials - The present invention concerns a process for the conversion of biomaterials into structural carbon products, particularly utilizing a hydrothermal treatment step that is carried out on a high molar mass organic starting material having a carbon content of >40 wt % of the dry matter. The invention also concerns a structural carbon product obtained using such a process, which has well-defined physico-chemical properties, e.g. in terms of surface area, carbon content, density, size and shape. | 11-12-2015 |
20150328629 | METHOD FOR FABRICATING HOLLOW METAL NANO PARTICLES SUPPORTED ON CARRIER (As Amended) - The present application relates to a method for fabricating hollow nano particles supported on carrier. | 11-19-2015 |
20160038916 | Method for Manufacturing a Photocatalyst Based on Titanium Dioxide Containing Carbon or Metal - A method for manufacturing a photocatalyst, based on titanium dioxide containing carbon or metal, in a pulsation reactor, where a raw material mixture, consisting of nanoparticulate titanium oxyhydrate and an aqueous solution or suspension, containing at least one organic, carbon-containing compound or metal ions, is fed into the pulsating hot-gas stream of the pulsation reactor and the titanium dioxide particles containing carbon or metal are formed. The hot-gas stream has a temperature of ≧450° C. following addition of the material and contains an excess of oxygen. In contrast to the known manufacturing methods, the method according to the invention allows reproducibly good product qualities to be achieved. | 02-11-2016 |
20160136632 | SUPPORTED, BIMETALLIC NANOPARTICLES FOR SELECTIVE CATALYSIS - Supported, bimetallic catalyst systems are provided. The supported, bimetallic catalyst system can include a support defining a surface; a core metal positioned on the surface of the support; and a shell metal positioned on the core metal to form a core-shell particle on the surface of the support. The core metal has a surface free energy that is higher than a surface free energy of the shell metal. Methods are also provided for the formation of such supported, bimetallic catalyst systems, as well as the use of such supported, bimetallic catalyst systems in chemical processes. | 05-19-2016 |