Rubidium aluminum hydride (RbAlH₄) is a complex metal hydride compound belonging to the alkali metal alanate family, primarily of interest in hydrogen storage and energy research rather than conventional structural applications. This material is investigated as a potential solid-state hydrogen storage medium due to its high theoretical hydrogen content, though it remains largely in the research phase with limited commercial deployment. Engineers and researchers consider RbAlH₄ in next-generation energy systems where high-density hydrogen storage, fuel cell integration, or chemical energy conversion is critical, though thermal stability, dehydrogenation kinetics, and synthesis scalability remain active areas of development.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 36.24 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2100 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 25.65 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.580 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.720 | eV | DFT · OptB88vdW | ||
| ↳ | 4.260 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 3.797 | - | DFT · OptB88vdW | ||
| ↳ | 2.873 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.2747 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data