Ag1Pd2Sn1
Ag1Pd2Sn1 is a semiconducting ternary alloy composed of silver, palladium, and tin that is studied for its unique structural and electronic properties.
About Ag1Pd2Sn1
Ag1Pd2Sn1 is a specialized intermetallic compound categorized within the platinum-group alloy catalysts. Characterized by its semiconducting electronic nature, this material represents a complex arrangement of silver, palladium, and tin atoms that has been documented across multiple structural configurations. Its existence as a distinct phase highlights the intricate bonding environments possible within ternary transition metal systems.
While the compound is currently identified as being above the thermodynamic hull, its presence in structural databases underscores the ongoing interest in metastable phases within catalytic research. Understanding such materials is vital for mapping the broader landscape of alloy stability and identifying potential pathways for tailoring electronic properties in advanced catalytic applications.
Key Properties
Cross-validated computational properties for Ag1Pd2Sn1, 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 Ag1Pd2Sn1, 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 | 0.81 | 1.9142 | -21.481 | 0.84 |
| P2/m (No. 10) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
Applications
Where Ag1Pd2Sn1 is used.
Frequently Asked Questions
Common questions about Ag1Pd2Sn1, answered from cross-validated data.
What is Ag1Pd2Sn1?
Ag1Pd2Sn1 is a semiconducting ternary alloy composed of silver, palladium, and tin that is studied for its unique structural and electronic properties.
What is Ag1Pd2Sn1 used for?
What is the band gap of Ag1Pd2Sn1?
Is Ag1Pd2Sn1 a metal, semiconductor, or insulator?
Is Ag1Pd2Sn1 thermodynamically stable?
What is the crystal structure of Ag1Pd2Sn1?
What is the density of Ag1Pd2Sn1?
How many polymorphs of Ag1Pd2Sn1 are known?
What elements does Ag1Pd2Sn1 contain?
Where does the data for Ag1Pd2Sn1 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, Ag1Pd2Sn1 occupies a distinct niche compared to more stable or common binary phases like BaPd or GeRu. While many members of this class are investigated for their robust metallic behavior, Ag1Pd2Sn1 is notable for its semiconducting character, which sets it apart from the typical high-conductivity profiles found in other palladium-based intermetallics.
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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