Abstract: A hydrogen storage material having improved hydrogen absorbtion and desorption kinetics is provided by adding graphite to a complex hydride such as a metal-doped alanate, i.e., NaAlH4. The incorporation of graphite into the complex hydride significantly enhances the rate of hydrogen absorbtion and desorption and lowers the desorption temperature needed to release stored hydrogen.
Type:
Grant
Filed:
July 19, 2004
Date of Patent:
June 10, 2008
Assignees:
Westinghouse Savannah River Co., University of South Carolina
Inventors:
Ragaiy Zidan, James A. Ritter, Armin D. Ebner, Jun Wang, Charles E. Holland
Abstract: An isolated and purified bacterium is provided which was isolated from a high-level radioactive waste site of mixed waste. The isolate has the ability to degrade a wide variety of organic contaminants while demonstrating high tolerance to ionizing radiation. The organism is uniquely suited to bioremediation of a variety or organic contaminants while in the presence of ionizing radiation.
Abstract: A hydrogen storage material and process is provided in which catalyzed alkali borohydride materials and partially substituted borohydride materials are created and which may contain effective amounts of catalyst(s) which include transition metal oxides, halides, and chlorides of titanium, zirconium, tin, vanadium, iron, cobalt and combinations of the various catalysts and the destabilization agents which include metals, metal hydrides, metal chlorides and complex hydrides of magnesium, calcium, strontium, barium, aluminum, gallium, indium, thallium and combinations of the various destabilization agents. When the catalysts and destabilization agents are added to an alkali borodydride such as a lithium borohydride, the initial hydrogen release point of the resulting mixture is substantially lowered. Additionally, the hydrogen storage material may be rehydrided with weight percent values of hydrogen of at least about nine percent.
Abstract: A hydrogen storage material and process is provided in which alkali borohydride materials are created which contain effective amounts of catalyst(s) which include transition metal oxides, halides, and chlorides of titanium, zirconium, tin, and combinations of the various catalysts. When the catalysts are added to an alkali borodydride such as a lithium borohydride, the initial hydrogen release point of the resulting mixture is substantially lowered. Additionally, the hydrogen storage material may be rehydrided with weight percent values of hydrogen at least about 9 percent.
Abstract: A portable liquid collection electrostatic collection precipitator for analyzing air is provided which is a relatively small, self-contained device. The device has a tubular collection electrode, a reservoir for a liquid, and a pump. The pump pumps the liquid into the collection electrode such that the liquid flows down the exterior of the collection electrode and is recirculated to the reservoir. An air intake is provided such that air to be analyzed flows through an ionization section to ionize analytes in the air, and then flows near the collection electrode where ionized analytes are collected. A portable power source is connected to the air intake and the collection electrode. Ionizable constituents in the air are ionized, attracted to the collection electrode, and precipitated in the liquid. The precipitator may also have an analyzer for the liquid and may have a transceiver allowing remote operation and data collection.
Type:
Grant
Filed:
November 4, 2002
Date of Patent:
October 18, 2005
Assignee:
Westinghouse Savannah River Co., LLC
Inventors:
Duane C. Carlson, John J. DeGange, Justin E. Halverson