Abstract:
A process for the synthesis of 2,2,6,6-tetramethyl-4-oxopiperidine is disclosed wherein the process comprises reacting in a liquid phase reaction mixture: (A) at least one acetone compound, and (B) at least one ammonia donor compound, in the presence of a catalytically effective amount of a crystalline aluminosilicate containing calcium.
Abstract:
A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride, and metalloid oxide, sulfide, selenide or telluride. The process comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials.
Abstract:
A process for the synthesis of 2,2,6,6-tetramethyl-4-oxopiperidine is disclosed wherein the process comprises reacting in a liquid phase reaction mixture: (A) at least one acetone compound, and (B) at least one ammonia donor compound, in the presence of a catalytically effective amount of a crystalline aluminosilicate containing calcium.
Abstract:
A process for preparing a meseporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride and metalloid oxide, sulfide, selenide or telluride. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous material, A mesoporous material, prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control.nano-sized wall crystallinity and mesoporosity in the mesoporous material. Mesoporous materials and a method of tuning structural properties of mesoporous materials.
Abstract:
The present teachings are directed toward an electrocatalytic cell including a barrier, having at least a first side and a second side opposite the first side, comprising a material permeable to oxygen ions and impermeable to at least C02, CO, H,2 H20 and hydrocarbons, an electrical power supply in communication with the barrier, a catalyst adjacent the first side of the barrier, a supply of feedstock components in communication with the first side of the barrier, a supply of a carrier gas component in communication with the second side of the barrier; wherein the feedstock components contact the catalyst and react to form hydrocarbon- containing components and oxygen-containing components, and the electrical power supply biases the barrier to thereby conduct oxygen ions from the first side to the second side. Also presented are a device and methods for producing carbon nanotubes.
Abstract:
Processes for making multinary bulk and thin film alloys with nanometer-scale grains are disclosed. An electroless process includes contacting a substrate with a bath within a sealed pressure vessel; and heating the sealed pressure vessel for a time and at a temperature under an autogeneous pressure effective for plating a film of an alloy with nanometer-scale grains onto a contacted portion of the substrate; wherein the bath is formed from one or more salts comprising each constituent element of the alloy, an organic medium, and a reducing agent. The bulk and thin film alloys may be useful in applications requiring high surface area materials or protection from corrosion such as for catalysts and battery cathodes.
Abstract:
A process for removing sulfur and sulfur compounds from a catalyst includes the following steps: exposing the catalyst to a reducing atmosphere and exposing the catalyst to microwave energy. Desorption of the sulfur and sulfur compounds from the catalyst occurs at a temperature less than 600 degrees centigrade.
Abstract:
A process for decomposing nitrogen oxides includes the following steps: providing a catalyst, passing a gaseous nitrogen oxide over the catalyst and exposing the catalyst to microwave energy. The gaseous nitrogen oxide is broken down into nitrogen and oxygen molecules.
Abstract:
A process for the synthesis of 2,2,6,6-tetramethyl-4-oxopiperidine is disclosed wherein the process comprises reacting in a liquid phase reaction mixture: (A) at least one acetone compound, and (B) at least one ammonia donor compound, in the presence of a catalytically effective amount of a crystalline aluminosilicate containing calcium.
Abstract:
A process for removing sulfur and sulfur compounds from a catalyst includes the following steps: exposing the catalyst to a reducing atmosphere and exposing the catalyst to microwave energy. Desorption of the sulfur and sulfur compounds from the catalyst occurs at a temperature less than 600 degrees centigrade.