Metallic and carbon nanotube-catalyzed coupling of hydrogenation in magnesium.
Synergistic effect of metallic couple and carbon nanotubes on Mg results in an ultrafast kinetics of hydrogenation that overcome a critical barrier of practical use of Mg as hydrogen storage materials. The ultrafast kinetics is attributed to the metal-H atomic interaction at the Mg surface and in the bulk (energy for bonding and releasing) and atomic hydrogen diffusion along the grain boundaries (aggregation of carbon nanotubes) and inside the grains. Hence, a hydrogenation mechanism is presented.
Yao
Xiangdong
X
ContARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Brisbane, Australia. x.yao@minmet.uq.edu.au
Wu
Chengzhang
C
Du
Aijun
A
Zou
Jin
J
Zhu
Zhonghua
Z
Wang
Ping
P
Cheng
Huiming
H
Smith
Sean
S
Lu
Gaoqing
G