Ag1In1Pd2
Ag1In1Pd2 is a semiconducting intermetallic alloy composed of silver, indium, and palladium that is studied for its potential catalytic properties.
About Ag1In1Pd2
Ag1In1Pd2 is a specialized intermetallic compound within the platinum-group alloy catalyst class. Characterized by its semiconducting electronic nature, this material represents a complex arrangement of silver, indium, and palladium atoms that has been documented across multiple structural configurations.
While its thermodynamic profile suggests it sits above the stability hull, the material remains a subject of interest in materials science research. Its unique composition allows it to function as a potential candidate for catalytic applications where specific electronic properties are required for surface-mediated reactions.
Key Properties
Cross-validated computational properties for Ag1In1Pd2, 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 Ag1In1Pd2, 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 | 0.34 | 2.1619 | -20.716 | 0.80 |
| P2/m (No. 10) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
Applications
Where Ag1In1Pd2 is used.
Frequently Asked Questions
Common questions about Ag1In1Pd2, answered from cross-validated data.
What is Ag1In1Pd2?
Ag1In1Pd2 is a semiconducting intermetallic alloy composed of silver, indium, and palladium that is studied for its potential catalytic properties.
What is Ag1In1Pd2 used for?
What is the band gap of Ag1In1Pd2?
Is Ag1In1Pd2 a metal, semiconductor, or insulator?
Is Ag1In1Pd2 thermodynamically stable?
What is the crystal structure of Ag1In1Pd2?
What is the density of Ag1In1Pd2?
How many polymorphs of Ag1In1Pd2 are known?
What elements does Ag1In1Pd2 contain?
Where does the data for Ag1In1Pd2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Compared to more robust members of the platinum-group alloy family like As2Pt or BaPd, Ag1In1Pd2 occupies a distinct niche due to its semiconducting character rather than the metallic behavior typically associated with these catalysts. While many siblings in the class exhibit high thermodynamic stability, this compound is notable for its metastable nature, which often provides unique pathways for structural investigation and catalytic activity.
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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