CoWO4

Cobalt tungstate · Cobalt(II) tungstate

CoWO4 is a stable semiconducting cobalt tungstate oxide utilized as a catalyst for oxygen-evolution reactions.

Crystal structure of CoWO4
Ground-state structure · Materials Project
Overview

About Cobalt tungstate

CoWO4 is a semiconducting oxide that sits firmly on the thermodynamic convex hull, indicating high structural stability. As a member of the oxide oxygen-evolution catalyst family, it plays a vital role in electrochemical processes where efficient charge transfer and surface stability are paramount.

This compound is primarily investigated for its catalytic performance in water-splitting reactions. Its electronic character allows for effective interaction with reactive species, making it a subject of interest for researchers developing sustainable energy conversion technologies.

At a glance

Key Properties

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

Band Gap

0.11–0.45 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

5
2 databases, 3 space groups
Uses

Applications

Where Cobalt tungstate is used.

Oxygen-evolution catalysisWater-splitting electrodesElectrochemical energy conversion
Intellectual Property

Patent Landscape

1 patent reference CoWO4 or close compositional variants.

PatentTitleAssigneeGranted
11879175W18O49/CoO/CoWO4/NF self-supporting electrocatalytic material and preparation method thereof
Reference

Frequently Asked Questions

Common questions about Cobalt tungstate, answered from cross-validated data.

What is CoWO4?

CoWO4 is a stable semiconducting cobalt tungstate oxide utilized as a catalyst for oxygen-evolution reactions.

More questions
What is CoWO4 used for?
Cobalt tungstate (CoWO4) is used in oxygen-evolution catalysis, water-splitting electrodes, and electrochemical energy conversion.
What is the band gap of CoWO4?
Cobalt tungstate (CoWO4) has a DFT-computed band gap of 0.11–0.45 eV across 5 reported structures.
Is CoWO4 a metal, semiconductor, or insulator?
With a band gap up to 0.45 eV it is a semiconductor.
Is CoWO4 thermodynamically stable?
Yes — Cobalt tungstate (CoWO4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CoWO4 are known?
5 structures of CoWO4 are reported across 2 databases, spanning 3 distinct space groups.
What elements does CoWO4 contain?
Cobalt tungstate (CoWO4) contains Co, O, and W (3 elements).
Where does the data for CoWO4 come from?
CoWO4 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Unlike the lithium-based intercalation oxides such as LiCoO2 or LiMn2O4, which are optimized for ion mobility in battery cathodes, CoWO4 is specialized for catalytic surface reactions. While it shares the oxide classification with materials like NiO and LaMnO3, its tungsten-based framework provides a distinct electronic environment that differentiates its catalytic mechanism from the transition-metal-only oxides in the group.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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