MnFe2O4
Manganese ferrite · Manganese iron oxide
Manganese ferrite is a metallic spinel oxide used as a catalyst for oxygen-evolution reactions in electrochemical systems.
About Manganese ferrite
Manganese ferrite is a complex oxide belonging to the spinel family, characterized by its metallic electronic structure. This material is primarily investigated for its catalytic activity in oxygen-evolution reactions, which are fundamental processes in electrochemical energy storage and conversion technologies.
Because of its metallic nature, it facilitates efficient charge transfer, making it a compelling candidate for electrode surfaces. Its ability to participate in redox cycles allows it to serve as a functional component in advanced electrochemical systems aimed at improving the efficiency of water splitting and related energy applications.
Key Properties
Cross-validated computational properties for Manganese ferrite, aggregated across 1 database.
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 MnFe2O4, 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) | — | — | — | — | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting MnFe2O4.
Applications
Where Manganese ferrite is used.
Frequently Asked Questions
Common questions about Manganese ferrite, answered from cross-validated data.
What is MnFe2O4?
Manganese ferrite is a metallic spinel oxide used as a catalyst for oxygen-evolution reactions in electrochemical systems.
What is MnFe2O4 used for?
What is the band gap of MnFe2O4?
Is MnFe2O4 a metal, semiconductor, or insulator?
What is the crystal structure of MnFe2O4?
How is MnFe2O4 synthesized?
What elements does MnFe2O4 contain?
Where does the data for MnFe2O4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the layered oxide structures such as LiCoO2 or LiNiO2 which are primarily utilized as intercalation cathodes, MnFe2O4 adopts a spinel-type framework that is better suited for surface-mediated catalytic processes. While materials like LaMnO3 and LaNiO3 rely on perovskite-based architectures to drive oxygen evolution, manganese ferrite offers a distinct magnetic and electronic profile that provides a unique pathway for optimizing catalytic performance in alkaline environments.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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