CoMo
Cobalt molybdenum is a binary intermetallic compound composed of cobalt and molybdenum. It is primarily studied for its structural properties and its role in advanced metallurgical research.
CoMo
Overview
Key Properties
Cross-validated computational properties for CoMo, 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.
0.009 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.
Near hull (likely stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
80
5 databases, 20 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CoMo. 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 CoMo, 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 | 0.0094 | -19.644 | 9.87 |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.2398 | -19.413 | 9.77 |
| Pm-3m (No. 221) | cubic | 0.00 | 0.2911 | -19.362 | 9.53 |
| P-1 (No. 2) | Triclinic | — | — | — | 9.05 |
| P213 (No. 198) | Cubic | — | — | — | 12.00 |
| P21 (No. 4) | Monoclinic | — | — | — | 9.35 |
| R3m (No. 160) | Trigonal | — | — | — | 7.38 |
| R3m (No. 160) | Trigonal | — | — | — | 11.60 |
| R3m (No. 160) | Trigonal | — | — | — | 9.32 |
| P-1 (No. 2) | Triclinic | — | — | — | 8.72 |
| C2/m (No. 12) | Monoclinic | — | — | — | 10.85 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.62 |
Synthesis
Synthesis Routes
Literature-extracted synthesis procedures targeting CoMo.
Sol-Gel
Procedure available · ceder_solid_state
Uses
Applications
Where CoMo is used.
Metallurgical researchCatalysis studiesHigh-temperature alloy development
Reference
Frequently Asked Questions
Common questions about CoMo, answered from cross-validated data.
What is CoMo?
Cobalt molybdenum is a binary intermetallic compound composed of cobalt and molybdenum. It is primarily studied for its structural properties and its role in advanced metallurgical research.
More questions
What is CoMo used for?
CoMo is used in metallurgical research, catalysis studies, and high-temperature alloy development.
What is the band gap of CoMo?
CoMo is computed to be metallic (no band gap) in the reported DFT structures.
Is CoMo a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CoMo thermodynamically stable?
CoMo has a lowest energy above hull of 0.009 eV/atom (near hull (likely stable)).
What is the crystal structure of CoMo?
The lowest-energy reported polymorph of CoMo is trigonal symmetry, space group R-3m (No. 166).
What is the density of CoMo?
The computed density of the ground-state structure of CoMo is 9.87 g/cm³.
How many polymorphs of CoMo are known?
80 structures of CoMo are reported across 5 databases, spanning 20 distinct space groups.
How is CoMo synthesized?
Literature-reported routes for CoMo include sol-gel.
What elements does CoMo contain?
CoMo contains Co and Mo (2 elements).
Where does the data for CoMo come from?
CoMo data is cross-referenced from materials_project, mpaloe, omat24, jarvis.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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