New materials for ammonia storage

Ammonia can be used for cleaning the exhaust from diesel cars as well as fuel for fuel cells. Safe storage of the ammonia is important in both applications. Safe storage of ammonia in solid materials has an enormous commercial potential. Up until now, only pure ammonia storage materials like SrCl2 and CaCl2 have been used commercially. However, in prelimi- nary investigations, the project has demonstrated that the properties of the salts can be changed and tuned by mixing different salts on an atomic scale. The vision for the project is to design and prepare new mixed salts with enhanced ammonia binding properties. The new materials will be used to demonstrate a) commercial systems for exhaust cleaning with higher ammonia capacity and lower weight as compared to existing systems, and b) an integrated low temperature fuel cell system, where the waste heat from the fuel cell is used to desorb the am- monia. The project is in the initial phase, where measurement principles and collaboration schemes are established.