Cr2Fe2O8

Cr2Fe2O8 is a semiconducting transition metal oxide being researched for its potential catalytic activity in oxygen-evolution reactions.

Crystal structure of Cr2Fe2O8
Ground-state structure · Materials Project
Overview

About Cr2Fe2O8

Cr2Fe2O8 is a complex oxide composed of chromium, iron, and oxygen, categorized within the class of oxygen-evolution catalysts. As a semiconducting material, it is studied for its potential role in electrochemical energy conversion processes where efficient oxygen production is required.

Despite its presence in multiple structural databases, this compound is identified as being above the thermodynamic hull. This indicates that it is likely metastable, posing unique challenges and opportunities for researchers focused on synthesizing and stabilizing complex transition metal oxides for catalytic applications.

At a glance

Key Properties

Cross-validated computational properties for Cr2Fe2O8, aggregated across 3 databases.

Band Gap

0.20–0.77 eV
Range across DFT structures

Energy Above Hull

0.129 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

10
3 databases, 5 space groups
Uses

Applications

Where Cr2Fe2O8 is used.

Oxygen-evolution catalysisElectrochemical energy conversion research
Reference

Frequently Asked Questions

Common questions about Cr2Fe2O8, answered from cross-validated data.

What is Cr2Fe2O8?

Cr2Fe2O8 is a semiconducting transition metal oxide being researched for its potential catalytic activity in oxygen-evolution reactions.

More questions
What is Cr2Fe2O8 used for?
Cr2Fe2O8 is used in oxygen-evolution catalysis and electrochemical energy conversion research.
What is the band gap of Cr2Fe2O8?
Cr2Fe2O8 has a DFT-computed band gap of 0.20–0.77 eV across 10 reported structures.
Is Cr2Fe2O8 a metal, semiconductor, or insulator?
With a band gap up to 0.77 eV it is a semiconductor.
Is Cr2Fe2O8 thermodynamically stable?
Cr2Fe2O8 has a lowest energy above hull of 0.129 eV/atom (above hull).
How many polymorphs of Cr2Fe2O8 are known?
10 structures of Cr2Fe2O8 are reported across 3 databases, spanning 5 distinct space groups.
What elements does Cr2Fe2O8 contain?
Cr2Fe2O8 contains Cr, Fe, and O (3 elements).
Where does the data for Cr2Fe2O8 come from?
Cr2Fe2O8 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Unlike highly stable and widely utilized battery cathode materials such as LiCoO2 or LiMn2O4, Cr2Fe2O8 occupies a more precarious position within the oxide landscape due to its thermodynamic instability. While compounds like BiFeO3 or LaMnO3 exhibit robust structural frameworks suitable for various electronic and catalytic functions, Cr2Fe2O8 remains a specialized subject of investigation, requiring precise synthesis control to manage its tendency toward phase transformation.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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