AlRh
Aluminum rhodium
Aluminum rhodium is an intermetallic compound composed of aluminum and rhodium. It is primarily studied for its structural properties and potential applications in high-temperature environments or as a catalyst.
Key Properties
Cross-validated computational properties for AlRh, aggregated across 4 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.
Reported Structures
Lowest-energy structures reported for AlRh, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Pm-3m (No. 221) | cubic | 0.00 | 0.0000 | -16.612 | 8.17 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.92 |
| Cmc21 (No. 36) | Orthorhombic | — | — | — | 5.65 |
| Cmc21 (No. 36) | Orthorhombic | — | — | — | 5.87 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.81 |
| P21/m (No. 11) | Monoclinic | — | — | — | 8.14 |
| P21/m (No. 11) | Monoclinic | — | — | — | 6.86 |
| P21/m (No. 11) | Monoclinic | — | — | — | 7.17 |
| P-1 (No. 2) | Triclinic | — | — | — | 6.62 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.97 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.46 |
| Cm (No. 8) | Monoclinic | — | — | — | 7.77 |
Applications
Where AlRh is used.
Frequently Asked Questions
Common questions about AlRh, answered from cross-validated data.
What is AlRh?
Aluminum rhodium is an intermetallic compound composed of aluminum and rhodium. It is primarily studied for its structural properties and potential applications in high-temperature environments or as a catalyst.
What is AlRh used for?
What is the band gap of AlRh?
Is AlRh a metal, semiconductor, or insulator?
Is AlRh thermodynamically stable?
What is the crystal structure of AlRh?
What is the density of AlRh?
How many polymorphs of AlRh are known?
What elements does AlRh contain?
Where does the data for AlRh come from?
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
Analyze AlRh in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →