Ag3Ru
Ag3Ru is a metallic binary alloy of silver and ruthenium studied for its potential properties as a platinum-group catalyst.
About Ag3Ru
Ag3Ru is a metallic binary alloy composed of silver and ruthenium, falling within the class of platinum-group alloy catalysts. Its electronic structure exhibits metallic behavior, lacking a band gap, which is characteristic of its conductive nature in solid-state systems.
While this compound has been documented across multiple structural databases, it exists as a metastable phase above the thermodynamic hull. Its study provides valuable insights into the phase stability and potential catalytic interactions of silver-ruthenium systems.
Key Properties
Cross-validated computational properties for Ag3Ru, 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.
Reported Structures
Lowest-energy structures reported for Ag3Ru, 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. |
|---|---|---|---|---|---|
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.5244 | -21.849 | 10.24 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 10.11 |
| Cm (No. 8) | Monoclinic | — | — | — | 10.27 |
| Cm (No. 8) | Monoclinic | — | — | — | 10.49 |
| Pm-3m (No. 221) | — | — | — | — | — |
| — | — | — | — | — | 10.39 |
| — | — | — | — | — | 10.67 |
Applications
Where Ag3Ru is used.
Frequently Asked Questions
Common questions about Ag3Ru, answered from cross-validated data.
What is Ag3Ru?
Ag3Ru is a metallic binary alloy of silver and ruthenium studied for its potential properties as a platinum-group catalyst.
What is Ag3Ru used for?
What is the band gap of Ag3Ru?
Is Ag3Ru a metal, semiconductor, or insulator?
Is Ag3Ru thermodynamically stable?
What is the crystal structure of Ag3Ru?
What is the density of Ag3Ru?
How many polymorphs of Ag3Ru are known?
What elements does Ag3Ru contain?
Where does the data for Ag3Ru come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the broader class of platinum-group alloy catalysts, Ag3Ru represents a distinct binary combination compared to more stable or common phases like GeRu or Ga2Ru. Unlike these more frequently synthesized counterparts, Ag3Ru occupies a more precarious position on the energy landscape, highlighting the diverse structural possibilities when pairing noble metals with transition elements.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze Ag3Ru in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →