Altered thermodynamic and kinetic properties of MgH(2) infiltrated in microporous scaffold.
MgH(2) nanoparticles with a size of <3 nm were formed by direct hydrogenation of Bu(2)Mg inside the pores of a carbon scaffold. The activation energy for the dehydrogenation was lowered by 52 kJ mol(-1) compared to the bulk material, and a significantly reduced reaction enthalpy of 63.8 ± 0.5 kJ mol(-1) and entropy (117.2 ± 0.8 J mol(-1)) was found for the nanoconfined system.
Zhao-Karger
Zhirong
Z
Karlsruhe Institute of Technology, Institute of Nanotechnology, P.O. Box 3640, D-76021 Karlsruhe, Germany.
Hu
Jianjiang
J
Roth
Arne
A
Wang
Di
D
Kübel
Christian
C
Lohstroh
Wiebke
W
Fichtner
Maximilian
M