Li3Fe3O8

Li3Fe3O8 is a metastable semiconducting oxide being explored as a potential catalyst for oxygen-evolution reactions in electrochemical systems.

Crystal structure of Li3Fe3O8 (monoclinic, C2/c (No. 15))
Ground-state structure · Materials Project
Overview

About Li3Fe3O8

Li3Fe3O8 is a semiconducting oxide that functions within the broader category of oxygen-evolution catalysts. As a metastable material, it represents a complex structural arrangement of lithium, iron, and oxygen, offering unique pathways for electrochemical surface reactions.

Its significance lies in the ongoing search for efficient, earth-abundant materials capable of facilitating the oxygen-evolution reaction. By leveraging its semiconducting electronic character, researchers study this compound to understand how transition metal oxides can be optimized for sustainable energy conversion technologies.

At a glance

Key Properties

Cross-validated computational properties for Li3Fe3O8, aggregated across 2 databases.

Band Gap

0.05–0.21 eV
Range across DFT structures

Energy Above Hull

0.069 eV/atom
Best (lowest) across sources

Stability

Metastable
1 DFT source

Structures

14
2 databases, 6 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Li3Fe3O8, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
C2/c (No. 15)monoclinic0.170.0688-6.6563.65
C2/m (No. 12)monoclinic0.100.0690-6.6563.66
C2/c (No. 15)monoclinic0.210.0701-6.6553.65
R-3m (No. 166)trigonal0.000.0739-6.6513.66
Cc (No. 9)monoclinic0.050.1070-6.6183.59
P63mc (No. 186)hexagonal0.000.1091-6.6163.56
Imm2 (No. 44)orthorhombic0.000.1501-6.5753.68
R-3m (No. 166)
Imm2 (No. 44)
R-3m (No. 166)
P63mc (No. 186)
R-3m (No. 166)
Uses

Applications

Where Li3Fe3O8 is used.

Oxygen-evolution catalysisElectrochemical energy conversion research
Reference

Frequently Asked Questions

Common questions about Li3Fe3O8, answered from cross-validated data.

What is Li3Fe3O8?

Li3Fe3O8 is a metastable semiconducting oxide being explored as a potential catalyst for oxygen-evolution reactions in electrochemical systems.

More questions
What is Li3Fe3O8 used for?
Li3Fe3O8 is used in oxygen-evolution catalysis and electrochemical energy conversion research.
What is the band gap of Li3Fe3O8?
Li3Fe3O8 has a DFT-computed band gap of 0.05–0.21 eV across 14 reported structures.
Is Li3Fe3O8 a metal, semiconductor, or insulator?
With a band gap up to 0.21 eV it is a semiconductor.
Is Li3Fe3O8 thermodynamically stable?
Li3Fe3O8 has a lowest energy above hull of 0.069 eV/atom (metastable).
What is the crystal structure of Li3Fe3O8?
The lowest-energy reported polymorph of Li3Fe3O8 is monoclinic symmetry, space group C2/c (No. 15).
What is the density of Li3Fe3O8?
The computed density of the ground-state structure of Li3Fe3O8 is 3.65 g/cm³.
How many polymorphs of Li3Fe3O8 are known?
14 structures of Li3Fe3O8 are reported across 2 databases, spanning 6 distinct space groups.
What elements does Li3Fe3O8 contain?
Li3Fe3O8 contains Fe, Li, and O (3 elements).
Where does the data for Li3Fe3O8 come from?
Li3Fe3O8 data is cross-referenced from materials_project, jarvis.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the diverse landscape of oxygen-evolution catalysts, Li3Fe3O8 occupies a distinct niche compared to more conventional battery-related oxides like LiCoO2 or LiMn2O4. While materials such as LaMnO3 or BiFeO3 are frequently highlighted for their perovskite-based catalytic activity, Li3Fe3O8 serves as an intriguing alternative, providing a different structural framework that challenges the stability and performance benchmarks set by established nickel and cobalt-based systems.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).

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