Ca2Ni3O8
Ca2Ni3O8 is a semiconducting calcium nickel oxide identified as a promising candidate for oxygen-evolution catalysis in energy-related applications.

About Ca2Ni3O8
Ca2Ni3O8 is a semiconducting oxide that functions within the class of oxygen-evolution catalysts. Its structural configuration and electronic properties make it a subject of interest for researchers investigating efficient water-splitting technologies and electrochemical processes. As a near-hull stable material, it occupies a promising position for experimental synthesis and characterization. Its role in the broader landscape of transition metal oxides is supported by its distinct stoichiometry and potential for catalytic activity in energy storage and conversion systems.
Key Properties
Cross-validated computational properties for Ca2Ni3O8, 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.
Applications
Where Ca2Ni3O8 is used.
Frequently Asked Questions
Common questions about Ca2Ni3O8, answered from cross-validated data.
What is Ca2Ni3O8?
Ca2Ni3O8 is a semiconducting calcium nickel oxide identified as a promising candidate for oxygen-evolution catalysis in energy-related applications.
What is Ca2Ni3O8 used for?
What is the band gap of Ca2Ni3O8?
Is Ca2Ni3O8 a metal, semiconductor, or insulator?
Is Ca2Ni3O8 thermodynamically stable?
How many polymorphs of Ca2Ni3O8 are known?
What elements does Ca2Ni3O8 contain?
Where does the data for Ca2Ni3O8 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Compared to well-established catalysts like NiO or the layered perovskite La2NiO4, Ca2Ni3O8 offers a unique structural framework that differentiates it from the more common lithium-based battery materials like LiCoO2 or LiMn2O4. While materials like LaNiO3 are frequently studied for their metallic conductivity, this compound provides a semiconducting alternative that may offer different surface reactivity profiles for oxygen evolution reactions.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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