Li3AlH6
lithium aluminum hydride · lithium alanate
Li3AlH6 is a thermodynamically stable complex hydride used primarily as a high-density hydrogen storage medium.
About lithium aluminum hydride
Li3AlH6 is a complex metal hydride that serves as a significant material in the field of hydrogen storage. As a thermodynamically stable phase, it represents a robust candidate for solid-state hydrogen containment, characterized by its wide-band-gap insulating electronic structure.
Its importance lies in its ability to store hydrogen within a compact crystalline framework. This makes it a subject of extensive research for applications requiring efficient, lightweight, and stable hydrogen delivery systems where traditional storage methods may be insufficient.
Key Properties
Cross-validated computational properties for lithium aluminum hydride, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Synthesis Routes
Literature-extracted synthesis procedures targeting Li3AlH6.
Applications
Where lithium aluminum hydride is used.
Frequently Asked Questions
Common questions about lithium aluminum hydride, answered from cross-validated data.
What is Li3AlH6?
Li3AlH6 is a thermodynamically stable complex hydride used primarily as a high-density hydrogen storage medium.
What is Li3AlH6 used for?
What is the band gap of Li3AlH6?
Is Li3AlH6 a metal, semiconductor, or insulator?
Is Li3AlH6 thermodynamically stable?
How many polymorphs of Li3AlH6 are known?
How is Li3AlH6 synthesized?
What elements does Li3AlH6 contain?
Where does the data for Li3AlH6 come from?
How It Compares
Within the hydrogen storage hydrides class.
Within the family of hydrogen storage hydrides, Li3AlH6 occupies a distinct position compared to simpler binary hydrides like LiH or MgH2. While binary hydrides often require extreme conditions for hydrogen release, the complex structure of Li3AlH6 allows for more nuanced decomposition pathways, positioning it as a more versatile, albeit structurally complex, alternative to simpler materials like CaH2.
Related Compounds
Other Hydrogen Storage Hydrides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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