U.S. hydrogen activities

NASA conducted studies on the development of the catalysts for methane decomposition process for space life-support systems [94], A special catalytic reactor with a rotating magnetic field to support Co catalyst at 850°C was designed. In the 1970s, a U.S. Army researcher M. Callahan [95] developed a fuel processor to catalytically convert different hydrocarbon fuels to hydrogen, which was used to feed a 1.5 kW FC. He screened a number of metals for the catalytic activity in the methane decomposition reaction including Ni, Co, Fe, Pt, and Cr. Alumina-supported Ni catalyst was selected as the most suitable for the process. The following rate equation for methane decomposition was reported ... 

Miller, M.A., M.A. Gorte, Carbon Carbon Nanotube Sorption Science—External Carbon Nanotube Sorption Science—External Peer Review of NREL Activities. U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies, 2004. 

Raney Not a process, but a nickel catalyst widely used for hydrogenating organic compounds. It is made from a 50/50 nickel/aluminum alloy by leaching out the aluminum with concentrated aqueous sodium hydroxide. The product has a spongy texture and is highly active. Invented by M. Raney in 1926. The business was acquired by W. R. Grace in 1963. U.S. Patent 1,628,190. 

Applications. In the last decade a lot of research has been devoted to the development of catalytic routes to a series of asymmetric carboxylic acids that lack the acetamido ligand as additional functionality. In Figure 4.17 four are listed, which are important as anaesthetics for rheumatic diseases. Their sales in beat many bulk chemicals the turnover of Naproxen (retail) in 1990 was 700 million for 1000 tons. S-Naproxen is now being produced by Syntcx via resolution with a chiral auxiliary. The main patents from Syntex expired in the U.S. in 1993, the reason for a lot of activity to study alternative synthetic routes. Routes leading to an asymmetric centre are o asymmetric hydrogenation of an unsaturated acid, o asymmetric carbohydroxylation of a styrene precursor, o asymmetric hydroformylation of a styrene precursor and oxidation. 

OVERVIEW OF U.S. MATERIALS DEVELOPMENT ACTIVITIES FOR HYDROGEN TECHNOLOGIES... 

Overview of U.S. Materials Development Activities for Hydrogen Technologies... 

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