What Materials are Commonly Used for Solid State Hydrogen Storage?
Several materials are employed for solid state hydrogen storage, each with unique properties and challenges:
1. Metal Hydrides: These include materials like magnesium hydride (MgH2) and titanium hydride (TiH2). They have high hydrogen storage capacities but require high temperatures for hydrogen release. 2. Complex Hydrides: Examples include sodium alanate (NaAlH4) and lithium borohydride (LiBH4). These materials offer higher hydrogen densities but often need catalysts to improve their kinetics. 3. Chemical Hydrides: Ammonia borane (NH3BH3) is a well-known example. These materials release hydrogen through chemical reactions and typically require a catalyst for efficient hydrogen release.
