Patent ID: 8916493

Claim:
A self-supporting solid compacted composition of material comprising an ammonia storage material capable of reversibly absorbing and desorbing ammonia which ammonia storage material is in its ammonia-saturated state, wherein the ammonia storage material is selected from a material having the general formula: M a (NH 3 ) n X z , wherein M is one or more cations selected from alkali metals, alkaline earth metals, aluminum and transition metals and combinations thereof, X is one or more anions selected from fluoride, chloride, bromide, iodide, nitrate, thiocyanate, sulphate, molybdate and phosphate ions, a is the number of cations per salt molecule, z is the number of anions per salt molecule such that the salt is neutral, and n is the coordination number of 2 to 12 depending on the specific cation, and which ammonia storage material is compacted to such degree that it has a density of at least 70% of the single crystal density of said ammonia storage material in its ammonia-saturated state, said ammonia storage material being in admixture with an additive of carbon fibers.