Hydrogen diffusion and effect of grain size on hydrogenation kinetics in magnesium hydrides
作者： X Yao , ZH Zhu , HM Cheng , GQ Lu , None
关键词: Chemical engineering 、 Dehydrogenation 、 Dissociation (chemistry) 、 Inorganic chemistry 、 Magnesium 、 Materials science 、 Hydrogen vehicle 、 Metal 、 Activation energy 、 Hydrogen 、 Grain size
摘要: Hydrogenation and dehydrogenation of metal hydrides are great interest because their potential in on-board applications for hydrogen vehicles. This paper aims to study diffusion hydrides, which is generally considered be a controlling factor hydrogenation/dehydrogenation. The present work first calculated temperature-dependent coefficients by theoretical model incorporated with experimental data Mg-based system accordingly the activation energy. grain size effect on nanoscale was also investigated.
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