K2Fe4O7
K2Fe4O7 is a metastable semiconducting iron-based oxide investigated for its potential utility in oxygen-evolution catalytic applications.
About K2Fe4O7
K2Fe4O7 is a semiconducting oxide that functions within the specialized class of oxygen-evolution catalysts. Its electronic structure and composition make it a subject of interest for researchers seeking to optimize electrochemical water splitting processes.
As a metastable phase, this compound offers unique structural pathways that distinguish it from more conventional, highly stable oxide catalysts. Its role in the field is primarily focused on understanding how specific iron-based arrangements influence catalytic activity and charge transport.
Key Properties
Cross-validated computational properties for K2Fe4O7, 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 K2Fe4O7 is used.
Frequently Asked Questions
Common questions about K2Fe4O7, answered from cross-validated data.
What is K2Fe4O7?
K2Fe4O7 is a metastable semiconducting iron-based oxide investigated for its potential utility in oxygen-evolution catalytic applications.
What is K2Fe4O7 used for?
What is the band gap of K2Fe4O7?
Is K2Fe4O7 a metal, semiconductor, or insulator?
Is K2Fe4O7 thermodynamically stable?
How many polymorphs of K2Fe4O7 are known?
What elements does K2Fe4O7 contain?
Where does the data for K2Fe4O7 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the broader family of oxide oxygen-evolution catalysts, K2Fe4O7 occupies a distinct niche compared to more widely utilized transition metal oxides like NiO or the layered lithium-based intercalation materials such as LiCoO2 and LiNiO2. While many of its siblings are characterized by high thermodynamic stability and well-defined redox cycling, K2Fe4O7 provides a different structural perspective, serving as a metastable alternative to the perovskite-based catalysts like LaMnO3 or LaNiO3.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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