Ge1Ni2O4
nickel germanium oxide
Ge1Ni2O4 is a stable semiconducting oxide material utilized in the study and development of oxygen-evolution catalysts for electrochemical applications.
About nickel germanium oxide
Ge1Ni2O4 is a thermodynamically stable oxide that functions as a semiconductor. Its structural configuration within the spinel-related family makes it a subject of interest for researchers investigating efficient catalytic pathways for oxygen evolution. The material exhibits robust stability, which is a critical requirement for long-term performance in electrochemical environments.
By leveraging its semiconducting electronic character, this compound serves as a functional material in the development of oxygen-evolution catalysts. Its ability to maintain structural integrity under operational conditions positions it as a specialized candidate for applications requiring stable, non-metallic oxide interfaces in energy conversion technologies.
Key Properties
Cross-validated computational properties for nickel germanium oxide, aggregated across 3 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 Ge1Ni2O4, 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. |
|---|---|---|---|---|---|
| Fd-3m (No. 227) | cubic | 2.14 | 0.0000 | -6.802 | 6.07 |
| I4/mmm (No. 139) | — | — | — | — | — |
| Fd-3m (No. 227) | cubic | — | — | — | 1.52 |
| I4/mmm (No. 139) | — | — | — | — | — |
Applications
Where nickel germanium oxide is used.
Frequently Asked Questions
Common questions about nickel germanium oxide, answered from cross-validated data.
What is Ge1Ni2O4?
Ge1Ni2O4 is a stable semiconducting oxide material utilized in the study and development of oxygen-evolution catalysts for electrochemical applications.
What is Ge1Ni2O4 used for?
What is the band gap of Ge1Ni2O4?
Is Ge1Ni2O4 a metal, semiconductor, or insulator?
Is Ge1Ni2O4 thermodynamically stable?
What is the crystal structure of Ge1Ni2O4?
What is the density of Ge1Ni2O4?
How many polymorphs of Ge1Ni2O4 are known?
What elements does Ge1Ni2O4 contain?
Where does the data for Ge1Ni2O4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the widely utilized layered oxides such as LiCoO2 or LiNiO2, which are primarily recognized for their role in lithium-ion battery cathodes, Ge1Ni2O4 occupies a distinct niche as a spinel-structured catalyst. While simple binary oxides like NiO are standard benchmarks for catalytic activity, Ge1Ni2O4 offers a more complex coordination environment that can be tuned to optimize surface reactivity compared to simpler transition metal oxides.
Related Compounds
Other Oxide Oxygen-Evolution 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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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