FeSO4

ferrous sulfate · iron(II) sulfate

FeSO4 is a thermodynamically stable, semiconducting iron-based compound that is investigated for its potential role in oxygen-evolution catalysis.

Crystal structure of FeSO4
Ground-state structure · Materials Project
Overview

About ferrous sulfate

FeSO4 is a semiconducting iron-based compound that functions within the class of oxygen-evolution catalysts. As a thermodynamically stable material located on the convex hull, it represents a robust candidate for researchers investigating electrochemical water splitting and energy conversion processes. Its structural versatility is highlighted by a significant number of reported crystal configurations across major materials databases, reflecting its importance in inorganic chemistry. This compound serves as a critical subject for understanding how transition metal sulfates participate in catalytic surface reactions. By leveraging its stable electronic character, scientists can probe the fundamental mechanisms of oxygen evolution, which is essential for developing efficient sustainable energy technologies.

At a glance

Key Properties

Cross-validated computational properties for ferrous sulfate, aggregated across 4 databases.

Band Gap

2.29–2.72 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

13
4 databases, 4 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting FeSO4.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where ferrous sulfate is used.

Oxygen-evolution catalysis researchElectrochemical water splitting studiesMaterials science research
Reference

Frequently Asked Questions

Common questions about ferrous sulfate, answered from cross-validated data.

What is FeSO4?

FeSO4 is a thermodynamically stable, semiconducting iron-based compound that is investigated for its potential role in oxygen-evolution catalysis.

More questions
What is FeSO4 used for?
ferrous sulfate (FeSO4) is used in oxygen-evolution catalysis research, electrochemical water splitting studies, and materials science research.
What is the band gap of FeSO4?
ferrous sulfate (FeSO4) has a DFT-computed band gap of 2.29–2.72 eV across 13 reported structures.
Is FeSO4 a metal, semiconductor, or insulator?
With a band gap up to 2.72 eV it is a semiconductor.
Is FeSO4 thermodynamically stable?
Yes — ferrous sulfate (FeSO4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of FeSO4 are known?
13 structures of FeSO4 are reported across 4 databases, spanning 4 distinct space groups.
How is FeSO4 synthesized?
Literature-reported routes for FeSO4 include sol gel, solid state (6 procedures documented).
What elements does FeSO4 contain?
ferrous sulfate (FeSO4) contains Fe, O, and S (3 elements).
Where does the data for FeSO4 come from?
FeSO4 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

While materials like LiCoO2 and LiMn2O4 are widely recognized for their roles in battery cathode technologies, FeSO4 distinguishes itself within the broader oxide catalyst family through its specific sulfate-based coordination environment. Unlike the perovskite structures of LaMnO3 or BiFeO3, which are frequently studied for their complex magnetic and ferroelectric properties, FeSO4 offers a more focused structural profile that simplifies the study of active catalytic sites during the oxygen evolution reaction.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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