Fe2P2O7
Iron(II) pyrophosphate · Ferrous pyrophosphate
Fe2P2O7 is a stable, semiconducting iron pyrophosphate oxide utilized in the development of advanced oxygen-evolution catalysts.

About Iron(II) pyrophosphate
Fe2P2O7 is a semiconducting iron-based pyrophosphate that maintains significant thermodynamic stability. As a member of the oxide oxygen-evolution catalyst family, it is recognized for its structural diversity, with numerous documented configurations that facilitate its investigation in electrochemical systems.
This compound plays a critical role in materials science by providing a stable framework for catalytic processes. Its electronic character makes it a candidate for study in energy conversion applications where robust, non-precious metal oxides are required to drive efficient oxygen evolution reactions.
Key Properties
Cross-validated computational properties for Iron(II) pyrophosphate, 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 Iron(II) pyrophosphate is used.
Frequently Asked Questions
Common questions about Iron(II) pyrophosphate, answered from cross-validated data.
What is Fe2P2O7?
Fe2P2O7 is a stable, semiconducting iron pyrophosphate oxide utilized in the development of advanced oxygen-evolution catalysts.
What is Fe2P2O7 used for?
What is the band gap of Fe2P2O7?
Is Fe2P2O7 a metal, semiconductor, or insulator?
Is Fe2P2O7 thermodynamically stable?
How many polymorphs of Fe2P2O7 are known?
What elements does Fe2P2O7 contain?
Where does the data for Fe2P2O7 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the highly conductive perovskite-structured catalysts such as LaNiO3 or LaMnO3, Fe2P2O7 functions as a semiconducting phosphate-based oxide. While materials like LiCoO2 and LiMn2O4 are primarily optimized for lithium-ion intercalation, Fe2P2O7 distinguishes itself through its distinct anionic framework, offering a different catalytic environment compared to the simple transition metal oxides like NiO.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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