Ca2Fe7O11
Ca2Fe7O11 is a semiconducting, metastable oxide material researched for its potential role in catalyzing the oxygen-evolution reaction.
About Ca2Fe7O11
Ca2Fe7O11 is a complex oxide belonging to the class of oxygen-evolution catalysts. As a semiconducting material, it offers unique electronic properties that are critical for facilitating the electrochemical reactions required to split water and generate oxygen. Its metastable nature suggests a high degree of structural sensitivity, making it an intriguing subject for fundamental research into catalytic surface reactivity.
Because of its specific composition of calcium, iron, and oxygen, this compound is primarily studied for its potential in sustainable energy conversion technologies. Its ability to participate in oxygen-evolution processes positions it as a candidate for developing more efficient electrodes in electrochemical cells, where the optimization of surface sites is essential for lowering the energy barriers of the reaction.
Key Properties
Cross-validated computational properties for Ca2Fe7O11, 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 Ca2Fe7O11 is used.
Frequently Asked Questions
Common questions about Ca2Fe7O11, answered from cross-validated data.
What is Ca2Fe7O11?
Ca2Fe7O11 is a semiconducting, metastable oxide material researched for its potential role in catalyzing the oxygen-evolution reaction.
What is Ca2Fe7O11 used for?
What is the band gap of Ca2Fe7O11?
Is Ca2Fe7O11 a metal, semiconductor, or insulator?
Is Ca2Fe7O11 thermodynamically stable?
How many polymorphs of Ca2Fe7O11 are known?
What elements does Ca2Fe7O11 contain?
Where does the data for Ca2Fe7O11 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse landscape of oxygen-evolution catalysts, Ca2Fe7O11 occupies a distinct niche compared to more conventional materials like NiO or LiCoO2. While many members of this class, such as the perovskite-structured LaMnO3 or LaNiO3, are extensively characterized for their stable catalytic performance, Ca2Fe7O11 is distinguished by its metastable character, which offers different pathways for surface activation and charge transfer compared to the more thermodynamically robust oxides in the group.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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