Efficient Regeneration of Partially Spent Ammonia Borane Fuel


  • This work was funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy. We would like to thank Drs. Troy Semelsberger and Roshan Shrestha for GC characterization of H2 released during digestion. D.A.D. thanks the Robert Ramsay Fund at the University of Alabama for partial support.


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Going full circle: Ammonia borane is a potential H2-releasing fuel. Polyborazylene, a form of the spent fuel, can be regenerated efficiently in a one-pot process by the stepwise addition of appropriate digesting and reducing agents. A unique feature of this process is the formation of NH3, which is retained by some of the digested species.