Abstract
Hydrogen storage materials research has entered a new and exciting period with the advance of the nanocrystalline alloys, which shows substantially enhanced absorption/desorption kinetics. This chapter concentrates on nanoprocessing conducted entirely in a solid state. This is a class of methods based on processes conducted in high-energy ball mills. Such methods are based on high-energy milling and grinding of microcrystalline materials. Four major processing methods can be employed during milling of materials in high-energy ball mills: mechanical alloying (MA), high-energy ball milling (HEBM), mechanochemical activation synthesis (MCAS), and mechanochemical synthesis (MCS). The chapter details the effects of LaNi5-, ZrV2, TiFe-type alloys addition on the electrochemical and thermodynamical properties of nanostructured Mg2Ni phase at room temperature. It characterizes a large number of the hydrogen storage systems. At present, there are several hydrogen storage systems such as metallic compounds, complex hydrides, nanomaterials (nanotubes, nanofibers, nanoparticles, nanohorns), metal organic frameworks, calthrate hydrides, molecular sieves, and so on to achieve the common goal of hydrogen storage materials.
Published Version
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