1 Department of Chemistry, Technical University of Denmark2 Department of Chemical and Biochemical Engineering, Technical University of Denmark3 Department of Physics, Technical University of Denmark4 Theoretical Atomic-scale Physics, Department of Physics, Technical University of Denmark5 Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark
The hopes of using hydrogen as an energy carrier are severely dampened by the fact that there is still no safe, high-density method available for storing hydrogen. We investigate the possibility of using metal ammine complexes as a solid form of hydrogen storage. Using Mg(NH3)(6)Cl-2 as the example, we show that it can store 9.1% hydrogen by weight in the form of ammonia. The storage is completely reversible, and by combining it with an ammonia decomposition catalyst, hydrogen can be delivered at temperatures below 620 K.
Journal of Materials Chemistry, 2005, Vol 15, Issue 38, p. 4106-4108