Os1Pd1Y2
Os1Pd1Y2 is a semiconducting ternary alloy composed of osmium, palladium, and yttrium.
About Os1Pd1Y2
Os1Pd1Y2 is a ternary intermetallic compound belonging to the platinum-group alloy catalyst class. Characterized by a semiconducting electronic structure, this material represents a complex arrangement of osmium, palladium, and yttrium atoms that has been documented across multiple structural configurations.
While this compound is currently identified as residing above the thermodynamic hull, its existence within the database highlights the ongoing exploration of rare-earth transition metal alloys. Its potential utility lies in the specialized catalytic behaviors often exhibited by platinum-group metal combinations when integrated with rare-earth elements.
Key Properties
Cross-validated computational properties for Os1Pd1Y2, aggregated across 2 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 Os1Pd1Y2, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.31 | 2.8606 | -26.908 | 0.78 |
| Imm2 (No. 44) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Applications
Where Os1Pd1Y2 is used.
Frequently Asked Questions
Common questions about Os1Pd1Y2, answered from cross-validated data.
What is Os1Pd1Y2?
Os1Pd1Y2 is a semiconducting ternary alloy composed of osmium, palladium, and yttrium.
What is Os1Pd1Y2 used for?
What is the band gap of Os1Pd1Y2?
Is Os1Pd1Y2 a metal, semiconductor, or insulator?
Is Os1Pd1Y2 thermodynamically stable?
What is the crystal structure of Os1Pd1Y2?
What is the density of Os1Pd1Y2?
How many polymorphs of Os1Pd1Y2 are known?
What elements does Os1Pd1Y2 contain?
Where does the data for Os1Pd1Y2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse landscape of platinum-group alloy catalysts, Os1Pd1Y2 occupies a distinct niche compared to more common binary systems like BaPd or GeRu. Unlike these simpler, often more stable metallic phases, this ternary compound reflects the structural complexity and synthetic challenges inherent in incorporating yttrium into noble metal frameworks.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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