Cd1Hg1Pd2
Cd1Hg1Pd2 is a semiconducting ternary alloy composed of cadmium, mercury, and palladium that is identified as a potential candidate for catalytic research.
About Cd1Hg1Pd2
Cd1Hg1Pd2 is a specialized intermetallic compound belonging to the class of platinum-group alloy catalysts. Characterized by its semiconducting electronic nature, this material represents a unique combination of cadmium, mercury, and palladium, offering distinct surface properties for chemical transformation processes.
As a near-hull stable phase, the compound is considered a viable candidate for experimental synthesis. Its structural complexity is highlighted by a significant number of reported configurations, positioning it as a subject of interest for researchers investigating the interplay between noble metal alloys and semiconducting behavior in catalytic applications.
Key Properties
Cross-validated computational properties for Cd1Hg1Pd2, 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 Cd1Hg1Pd2, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0052 | -3.181 | 12.53 |
| Immm (No. 71) | orthorhombic | 0.50 | 1.4678 | -1.719 | 0.93 |
| Imm2 (No. 44) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
Applications
Where Cd1Hg1Pd2 is used.
Frequently Asked Questions
Common questions about Cd1Hg1Pd2, answered from cross-validated data.
What is Cd1Hg1Pd2?
Cd1Hg1Pd2 is a semiconducting ternary alloy composed of cadmium, mercury, and palladium that is identified as a potential candidate for catalytic research.
What is Cd1Hg1Pd2 used for?
What is the band gap of Cd1Hg1Pd2?
Is Cd1Hg1Pd2 a metal, semiconductor, or insulator?
Is Cd1Hg1Pd2 thermodynamically stable?
What is the crystal structure of Cd1Hg1Pd2?
What is the density of Cd1Hg1Pd2?
How many polymorphs of Cd1Hg1Pd2 are known?
What elements does Cd1Hg1Pd2 contain?
Where does the data for Cd1Hg1Pd2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloy catalysts, Cd1Hg1Pd2 occupies a distinct niche compared to more conventional binary systems like BaPd or GeRu. While many of its siblings exhibit metallic conductivity, the semiconducting nature of this ternary alloy sets it apart, offering a different electronic environment for surface reactions than the more standard transition metal-based catalysts such as P3Ru.
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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