Down Select Report of Chemical Hydrogen Storage Materials, Catalysts, and Spent Fuel Regeneration Processes

摘要

The Chemical Hydrogen Storage Center of Excellence (CHSCoE) partners have studied more than 60 materials since the Centers inception in early calendar year 2005. This report contains the outcome of the Centers storage material down select process and the status of these materials in moving forward to Phase II R&D conducted by the Centers partners. During the first three years of the Centers research, several concepts for the storage of hydrogen in chemical hydrogen storage materials have been developed and tested. The key classes of materials investigated include endothermic release materials (such as organocarbenes, imidazolines, magnesium alkoxides, and silicon nanoparticles and clathrates), exothermic release materials (such as ammonia borane (AB) and mixtures with ionic liquids or scaffolds containing ammonia borane, metal amidoboranes, and amine boranes), and polyhedral boranes (such as alkali metal salts of decaborane, undecaborane, and dodecaborane anions). To release hydrogen from these classes of materials, approaches including thermolysis, hydrolysis, and catalysis have been or are being developed. All three of these approaches are yielding promising hydrogen storage capacities or rates of hydrogen release or both in some cases.