Ni
Nickel · Ni
Nickel is a versatile transition metal known for its resistance to corrosion and its ability to withstand high temperatures. It is widely used as a key component in various alloys and as a fundamental material in modern energy storage technologies.
Ni
Overview
Key Properties
Cross-validated computational properties for Nickel, 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.
0.000 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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
105
5 databases, 6 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Ni. 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: high
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.
3
jarvis, materials_project, nomad
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 Ni, 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 | 0.0000 | -11.982 | 9.29 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0458 | -11.936 | 9.22 |
| Im-3m (No. 229) | cubic | 0.00 | 0.1193 | -11.862 | 9.20 |
| P6/mmm (No. 191) | hexagonal | 0.00 | 0.4099 | -11.572 | 8.37 |
| P-3m1 (No. 164) | trigonal | 0.00 | 0.6202 | -11.361 | 2.85 |
| P6/mmm (No. 191) | hexagonal | 0.00 | 0.7399 | -11.242 | 2.74 |
| No. 0 | unknown | — | — | — | 2.21 |
| No. 0 | unknown | — | — | — | 2.21 |
| No. 0 | unknown | — | — | — | 2.23 |
| No. 0 | unknown | — | — | — | 2.21 |
| No. 0 | unknown | — | — | — | 2.20 |
| No. 0 | unknown | — | — | — | 2.20 |
Uses
Applications
Where Nickel is used.
Stainless steel productionRechargeable battery electrodesElectroplatingSuperalloys for aerospace componentsCatalysts in chemical processing
Reference
Frequently Asked Questions
Common questions about Nickel, answered from cross-validated data.
What is Ni?
Nickel is a versatile transition metal known for its resistance to corrosion and its ability to withstand high temperatures. It is widely used as a key component in various alloys and as a fundamental material in modern energy storage technologies.
More questions
What is Ni used for?
Nickel (Ni) is used in stainless steel production, rechargeable battery electrodes, electroplating, superalloys for aerospace components, and catalysts in chemical processing.
What is the band gap of Ni?
Nickel (Ni) is computed to be metallic (no band gap) in the reported DFT structures.
Is Ni a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Ni thermodynamically stable?
Yes — Nickel (Ni) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ni?
The lowest-energy reported polymorph of Nickel (Ni) is cubic symmetry, space group Fm-3m (No. 225).
What is the density of Ni?
The computed density of the ground-state structure of Nickel (Ni) is 9.29 g/cm³.
How many polymorphs of Ni are known?
105 structures of Ni are reported across 5 databases, spanning 6 distinct space groups.
What elements does Ni contain?
Nickel (Ni) contains Ni (1 element).
Where does the data for Ni come from?
Ni data is cross-referenced from materials_project, cod, nomad, jarvis.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
Analyze Ni in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →