Generation of nanopores during desorption of NH3 from Mg(NH3)6Cl2.
It is shown that nanopores are formed during desorption of NH3 from Mg(NH3)6Cl2, which has been proposed as a hydrogen storage material. The system of nanopores facilitates the transport of desorbed ammonia away from the interior of large volumes of compacted storage material. DFT calculations show that there exists a continuous path from the initial Mg(NH3)6Cl2 material to MgCl2 that does not involve large-scale material transport. Accordingly, ammonia desorption from this system is facile.
Hummelshøj
Jens S
JS
Center for Atomic-Scale Materials Physics (CAMP), Department of Physics, Building 307, Technical University of Denmark, DK-2800 Lyngby, Denmark.
Sørensen
Rasmus Zink
RZ
Kustova
Marina Yu
MY
Johannessen
Tue
T
Nørskov
Jens K
JK
Christensen
Claus Hviid
CH