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Energy efficient synthesis of boranes

United States Patent

January 24, 2012
View the Complete Patent at the US Patent & Trademark Office
The reaction of halo-boron compounds (B--X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B--H compounds, compounds having one or more B--H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si--H) react with B--X compounds to form B--H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn--H bond) to form boranes and halostannanes (tin compounds having a Sn--X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl.sub.3, the B--H compound is B.sub.2H.sub.6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
Thorn; David L (Los Alamos, NM), Tumas; William (Los Alamos, NM), Schwarz; Daniel E (Los Alamos, NM), Burrell; Anthony K (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
12/ 914,595
October 28, 2010
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC51-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.