The Effects of Cryogenic Milling and Catalytic Additives on the Hydrogen Desorption Behaviour of Nanostructured MgH2
|Periodical||Materials Science Forum (Volumes 654 - 656)|
|Edited by||Jian-Feng Nie and Allan Morton|
|Citation||Chan Yeol Seo et al., 2010, Materials Science Forum, 654-656, 2847|
|Online since||June, 2010|
|Authors||Chan Yeol Seo, Xiao Dong Wu, Kiyonori Suzuki|
|Keywords||Differential Thermal Analysis (DTA), Hydrogen Storage, Kinetic, Mechanical Milling, MgH2, Thermal Gravimetric Analysis (TGA)|
It is well known that catalytic additives and mechanical milling are effective in improving hydrogen desorption kinetics of MgH2. In this study, the effect of catalytic additives including BaCa1-xNdxO3-δ (BCN) on the desorption behavior of MgH2 was investigated. It was found that BCN can improve the desorption kinetics, but not as effective as other known additives such as Nb2O5. The effect of milling temperature was also studied. It was found that the cryogenic milling is not as effective as room temperature milling primarily due to the inhomogeneous particle size distribution.