In Situ Multinuclear NMR Spectroscopic Studies of the Thermal Decomposition of Ammonia Borane in Solution

The development of condensed phase hydrogen storage materials for fuel cell powered vehicles capable of meeting the 2015 system target goals of >82 g H2 L-1 volumetric density and >90 g H2 kg-1 gravimetric density has attracted recent interest. The details of the mechanisms for hydrogen release from AB are not completely understood; however, significant progress has been made in furthering our understanding of these mechanisms. This work was funded by the Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy (DOE) as part of the Chemical Hydrogen Storage Center and carried out at the Pacific Northwest National Laboratory (operated by Battelle for DOE).