OsRu
OsRu is a thermodynamically stable metallic alloy composed of osmium and ruthenium that serves as a robust catalyst in the platinum-group metal family.
About OsRu
OsRu is a metallic platinum-group alloy that sits firmly on the convex hull, indicating exceptional thermodynamic stability. As a member of the platinum-group metal family, it leverages the inherent catalytic activity and robustness associated with these noble elements. Its metallic nature suggests excellent electrical conductivity, making it a candidate for advanced electrochemical applications where durability and surface reactivity are paramount. The extensive structural data available for this compound underscores its significance in materials research, reflecting a well-characterized phase within the broader landscape of transition metal alloys. Its stability makes it a reliable subject for studying surface-level interactions in catalytic processes.
Key Properties
Cross-validated computational properties for OsRu, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of OsRu. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for OsRu, 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. |
|---|---|---|---|---|---|
| — | — | 0.00 | 0.0000 | -0.015 | — |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.0000 | -39.220 | 17.47 |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.0000 | -0.020 | — |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.0013 | -0.019 | — |
| — | — | 0.00 | 0.0053 | -0.010 | — |
| — | — | 0.00 | 0.1276 | 0.113 | — |
| — | — | 0.00 | 0.2619 | 0.247 | — |
| — | — | 0.00 | 0.7595 | 0.745 | — |
| — | — | 0.00 | 1.2963 | 1.282 | — |
| — | — | 0.00 | 1.3711 | 1.356 | — |
| P-1 (No. 2) | triclinic | — | — | — | 16.89 |
| P-1 (No. 2) | triclinic | — | — | — | 15.99 |
Applications
Where OsRu is used.
Frequently Asked Questions
Common questions about OsRu, answered from cross-validated data.
What is OsRu?
OsRu is a thermodynamically stable metallic alloy composed of osmium and ruthenium that serves as a robust catalyst in the platinum-group metal family.
What is OsRu used for?
What is the band gap of OsRu?
Is OsRu a metal, semiconductor, or insulator?
Is OsRu thermodynamically stable?
How many polymorphs of OsRu are known?
What elements does OsRu contain?
Where does the data for OsRu come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse class of platinum-group alloy catalysts, OsRu distinguishes itself through its high thermodynamic stability compared to more complex intermetallic phases like GeRu or Ga2Ru. While many members of this group, such as As2Pt or IrSe2, exhibit specialized bonding environments, OsRu maintains a straightforward metallic character that provides a foundational baseline for exploring binary noble metal interactions in high-performance catalysis.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
Analyze OsRu in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →