Ni3O4
Ni3O4 is a thermodynamically stable, metallic oxide material that serves as a promising candidate for oxygen-evolution catalysis.

About Ni3O4
Ni3O4 is a metallic oxide that stands out as a thermodynamically stable member of the oxygen-evolution catalyst family. Its electronic nature, characterized by the absence of a band gap, facilitates efficient electron transfer, which is a critical requirement for high-performance catalytic processes in electrochemical systems.
Given its status as a stable phase, this compound is a subject of significant interest for researchers developing next-generation energy conversion materials. Its structural versatility is highlighted by a substantial number of reported configurations, providing a robust foundation for exploring its potential in various catalytic environments.
Key Properties
Cross-validated computational properties for Ni3O4, aggregated across 4 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.
Applications
Where Ni3O4 is used.
Frequently Asked Questions
Common questions about Ni3O4, answered from cross-validated data.
What is Ni3O4?
Ni3O4 is a thermodynamically stable, metallic oxide material that serves as a promising candidate for oxygen-evolution catalysis.
What is Ni3O4 used for?
What is the band gap of Ni3O4?
Is Ni3O4 a metal, semiconductor, or insulator?
Is Ni3O4 thermodynamically stable?
How many polymorphs of Ni3O4 are known?
What elements does Ni3O4 contain?
Where does the data for Ni3O4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse landscape of oxide catalysts, Ni3O4 occupies a distinct position compared to more conventional insulators or semiconductors like NiO or LiCoO2. While many members of this class, such as LaNiO3 or LiMn2O4, are extensively utilized in battery technologies, the metallic character of Ni3O4 offers unique advantages for surface-driven oxygen-evolution reactions where rapid charge carrier mobility is essential.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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