NiPd
Nickel-palladium alloy
Nickel-palladium is a metallic alloy composed of nickel and palladium. It is primarily utilized in the electronics industry for its favorable surface properties and resistance to environmental degradation.
Overview
Key Properties
Cross-validated computational properties for NiPd, 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.
Metallic / not reported
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.
0.043 eV/atom
Best (lowest) across sources
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.
Metastable
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
15
5 databases, 6 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of NiPd. 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.
1.00 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for NiPd, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.00 | 0.0426 | -17.428 | 10.41 |
| R3m (No. 160) | Trigonal | — | — | — | 5.31 |
| C2 (No. 5) | Monoclinic | — | — | — | 7.02 |
| C2 (No. 5) | Monoclinic | — | — | — | 7.23 |
| R-3m (No. 166) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 5.28 |
| — | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 6.06 |
| Pm (No. 6) | Monoclinic | — | — | — | 4.97 |
| Pm (No. 6) | Monoclinic | — | — | — | 7.11 |
| Pm (No. 6) | Monoclinic | — | — | — | 6.97 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 10.69 |
Uses
Applications
Where NiPd is used.
Electronic component platingSemiconductor lead framesCatalytic materialsElectrical contacts
Reference
Frequently Asked Questions
Common questions about NiPd, answered from cross-validated data.
What is NiPd?
Nickel-palladium is a metallic alloy composed of nickel and palladium. It is primarily utilized in the electronics industry for its favorable surface properties and resistance to environmental degradation.
More questions
What is NiPd used for?
NiPd is used in electronic component plating, semiconductor lead frames, catalytic materials, and electrical contacts.
What is the band gap of NiPd?
NiPd is computed to be metallic (no band gap) in the reported DFT structures.
Is NiPd a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is NiPd thermodynamically stable?
NiPd has a lowest energy above hull of 0.043 eV/atom (metastable).
What is the crystal structure of NiPd?
The lowest-energy reported polymorph of NiPd is trigonal symmetry, space group R-3m (No. 166).
What is the density of NiPd?
The computed density of the ground-state structure of NiPd is 10.41 g/cm³.
How many polymorphs of NiPd are known?
15 structures of NiPd are reported across 5 databases, spanning 6 distinct space groups.
What elements does NiPd contain?
NiPd contains Ni and Pd (2 elements).
Where does the data for NiPd come from?
NiPd data is cross-referenced from materials_project, mpaloe, jarvis, cod, alexandria.
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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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- alexandria — Data from alexandria.
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