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Aluminum Hydride

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Aluminum Hydride 

(AIH3)X, a compound of aluminum and hydrogen, a white noncrystalline substance that decomposes at temperatures greater than 105°C, with the separation of hydrogen. First obtained in 1942 through the process of glow discharge in a solution of trimethylaluminum and hydrogen, aluminum hydride is capable of forming binary hydrides with the composition MeHn.nAlH3 (where Me is a metal) called alumohydrides, or alanates. These are white, solid substances, soluble in ether, that dissociate in water with the separation of hydrogen. Alumohydrides are widely used in organic chemistry as hydrogenizing agents. Lithium alumohydride—LiAlH4—is a fast-acting, strong, and selective reducing agent. In inorganic synthesis it is used to obtain volatile hydrides of boron, aluminum, silicon, germanium, tin, and other elements.



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The SRNL team, supported by the DOE Office of Energy Efficiency and Renewable Energy, has developed a novel closed cycle for producing aluminum hydride (AlH3), also known as alane, that potentially offers a cost-effective method of regenerating the hydrogen storing material in a way that allows it to repeatedly release and recharge its hydrogen.
Just 3 mm x 3 mm x 1 mm, the fuel cell generates hydrogen by pushing water vapor through a lithium aluminum hydride membrane.
In fact, using isobutyl aluminum hydride, we have succeeded in the rapid, highly selective, low environmental load production of various kinds of aldehydes as intermediate materials for curative medicines from various kinds of esters.
 
 
 
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