CoO4

CoO4 is a semimetallic conversion oxide material studied for its potential role as a high-capacity anode in next-generation electrochemical energy storage devices.

Crystal structure of CoO4
Ground-state structure · Materials Project
Overview

About CoO4

CoO4 is a complex conversion oxide characterized by its near-zero-gap semimetallic electronic structure. As an unconventional member of the oxide anode family, it represents a high-energy-density candidate for advanced electrochemical systems, though its thermodynamic profile suggests it exists in a metastable state relative to more common binary oxides.

Because it sits above the thermodynamic hull, this material is of significant interest to researchers studying phase transformation and structural evolution during battery cycling. Its rich structural data suggests a complex landscape of potential atomic arrangements that could be leveraged for high-capacity energy storage applications.

At a glance

Key Properties

Cross-validated computational properties for CoO4, aggregated across 3 databases.

Band Gap

0.02 eV
Range across DFT structures

Energy Above Hull

0.599 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

26
3 databases, 9 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting CoO4.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Uses

Applications

Where CoO4 is used.

Conversion-type battery anodesElectrochemical energy storage researchAdvanced materials science studies
Reference

Frequently Asked Questions

Common questions about CoO4, answered from cross-validated data.

What is CoO4?

CoO4 is a semimetallic conversion oxide material studied for its potential role as a high-capacity anode in next-generation electrochemical energy storage devices.

More questions
What is CoO4 used for?
CoO4 is used in conversion-type battery anodes, electrochemical energy storage research, and advanced materials science studies.
What is the band gap of CoO4?
CoO4 has a DFT-computed band gap of 0.02 eV across 26 reported structures.
Is CoO4 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is CoO4 thermodynamically stable?
CoO4 has a lowest energy above hull of 0.599 eV/atom (above hull).
How many polymorphs of CoO4 are known?
26 structures of CoO4 are reported across 3 databases, spanning 9 distinct space groups.
How is CoO4 synthesized?
Literature-reported routes for CoO4 include sol gel (10 procedures documented).
What elements does CoO4 contain?
CoO4 contains Co and O (2 elements).
Where does the data for CoO4 come from?
CoO4 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the conversion oxide anodes class.

Within the class of conversion oxide anodes, CoO4 occupies a distinct position compared to more conventional, thermodynamically stable compounds like Co3O4 or CoO. While siblings such as Fe2O3 and SnO2 are widely utilized for their predictable conversion mechanisms, CoO4 offers a more exotic electronic profile that challenges standard models of lithiation and structural stability.

Explore

Related Compounds

Other Conversion Oxide Anodes in the database.

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

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