CoS2

cobalt disulfide · cobalt pyrites

CoS2 is a stable, metallic cobalt disulfide compound widely studied for its electrochemical properties.

CoS
Crystal structure of CoS2
Ground-state structure · Materials Project
Overview

About cobalt disulfide

Cobalt disulfide is a metallic compound that maintains a robust structural integrity, evidenced by its position on the thermodynamic convex hull. Its electronic character as a metal makes it a subject of significant interest for researchers investigating charge transfer and catalytic processes.

With extensive documentation across multiple structural databases, this material is well-characterized and highly stable. Its unique composition allows it to serve as a foundational component in studies concerning transition metal chalcogenides and their potential in energy-related technologies.

At a glance

Key Properties

Cross-validated computational properties for cobalt disulfide, aggregated across 4 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

110
4 databases, 29 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting CoS2.

Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where cobalt disulfide is used.

electrocatalysislithium-ion battery anodessupercapacitors
Reference

Frequently Asked Questions

Common questions about cobalt disulfide, answered from cross-validated data.

What is CoS2?

CoS2 is a stable, metallic cobalt disulfide compound widely studied for its electrochemical properties.

More questions
What is CoS2 used for?
cobalt disulfide (CoS2) is used in electrocatalysis, lithium-ion battery anodes, and supercapacitors.
What is the band gap of CoS2?
cobalt disulfide (CoS2) is computed to be metallic (no band gap) in the reported DFT structures.
Is CoS2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CoS2 thermodynamically stable?
Yes — cobalt disulfide (CoS2) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CoS2 are known?
110 structures of CoS2 are reported across 4 databases, spanning 29 distinct space groups.
How is CoS2 synthesized?
Literature-reported routes for CoS2 include solid state (2 procedures documented).
What elements does CoS2 contain?
cobalt disulfide (CoS2) contains Co and S (2 elements).
Where does the data for CoS2 come from?
CoS2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a thermodynamically stable metallic sulfide, this compound represents a well-defined benchmark for transition metal-based materials, offering a reliable structural profile for comparative studies in materials science.

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

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