Abstract:
An excellent oxygen storage capacity is achieved even in the case used for a long period of time under high temperature conditions. An oxygen storage material contains a first particle made of a composite oxide of cerium and zirconium or a composite oxide of cerium, a rare-earth element other than cerium and zirconium, a second particle including a composite oxide of a rare-earth element, an alkaline-earth element and zirconium, and a precious metal. A part of the precious metal forms a solid solution with the composite oxide included in the second particle.
Abstract:
Method and apparatus for storing hydrogen. One embodiment of such a method comprises providing a storage apparatus having a substrate and a nanostructure mat on at least a portion of a side of the substrate. The nanostructure mat comprises a plurality of nanostructures having a surface ionization state which causes more than one layer of hydrogen to adsorb onto the nanostructures. The method can also include exposing the nanostructure mat to hydrogen such that more than one layer of hydrogen adsorbs onto the nanostructures.
Abstract:
A pyrolyzed monolith carbon physical adsorbent that is characterized by at least one of the following characteristics: (a) a fill density measured for arsine gas at 25° C. and pressure of 650 torr that is greater than 400 grams arsine per liter of adsorbent; (b) at least 30% of overall porosity of the adsorbent including slit-shaped pores having a size in a range of from about 0.3 to about 0.72 nanometer, and at least 20% of the overall porosity including micropores of diameter
Abstract:
The present application relates to improved filtration of fluids. Particularly, a surfactant-treated zeolite material may be utilized for removing turbid particles from a volume of fluid, such as water.
Abstract:
An adsorbent composition and method of cleaning the industrial waste water using the composite is described. The method for removing heavy metals from contaminated water is done by mixing contaminated water having a concentration of one or more heavy metals with an adsorbent composite comprising granules of a mixture of 50.363 wt % kaolin clay, a 4.477 wt % roasted date pits powder, a 5.54 wt % silica powder a 14.99 wt % magnesite powder and a 24.623 wt % water. After reacting the contaminated water and adsorbent composite together for a specific time the water is filtered and was found to contain reduced amount of heavy metals. The cleaned water can further be used for industrial cooling systems or watering gardens.
Abstract:
A method of electrochemically preparing a crystalline, porous, metal-organic framework material comprising at least one at least bidentate organic compound coordinately bound to at least one metal ion, in a reaction medium comprising the at least one bidentate organic compound, wherein at least one metal ion is provided in the reaction medium by the oxidation of one anode comprising the corresponding metal.
Abstract:
Disclosed are a novel hydrogen storage material with enhanced hydrogen storage capacity prepared by doping an organic framework material with light metal cations, and a method of using the same for hydrogen storage. The present inventive material has at least one phenyl group at each face of a triangular building unit, which is doped with metal cations such as alkali metal cations, alkali-earth metal cations, etc., so that the material exhibits greatly improved capacity of hydrogen absorption and desorption at room temperature and can provide hydrogen storage materials practically adapted for fuel batteries useable even at room temperature.
Abstract:
An adsorbent composition and method of using the adsorbent composite is described. The method for removing heavy metals from contaminated water is done by mixing contaminated water having a concentration of one or more heavy metals with an adsorbent composite comprising granules of a mixture of 50.363 wt % kaolin clay, a 4.477 wt % roasted date pits powder, a 5.54 wt % silica powder a 14.99 wt % magnesite powder and a 24.623 wt % water. After reacting the contaminated water and adsorbent composite together for a specific time the water is filtered and was found to contain reduced amount of heavy metals. The cleaned water can further be used for industrial cooling systems or watering gardens.
Abstract:
Hydrogen or methane gas pressure container having a minimum volume of 1 m3 a prescribed maximum filling pressure, has a filter through which oxygen, methane respectively, can flow during uptake. The filter has an adsorbent for adsorbing impurities selected from the group consisting of a higher hydrocarbon, ammonia, an odorous substance, hydrogen sulfide and a mixture of two or more of these substances. The pressure container and the filter comprise porous metal organic frameworks as adsorbent.
Abstract:
A hydrogen storage system for storing hydrogen gas at elevated pressures and cryogenic temperatures is disclosed. The hydrogen gas is fed to a storage container which contains a physisorption type material and a volatile liquid container for liquid nitrogen. Cryogenic conditions are maintained within the storage container during the periods of storage and the periods where the hydrogen gas is removed from the storage system.