CoSe2

metal

· CoSe2

Cobalt diselenide (CoSe2) is an intermetallic compound belonging to the transition metal chalcogenide family, characterized by a layered crystal structure similar to pyrite. While primarily investigated in advanced materials research rather than established industrial production, CoSe2 has emerged as a promising candidate for electrochemical energy storage and conversion applications due to its electronic properties and surface reactivity. Engineers consider this material for next-generation battery electrodes, electrocatalysts, and supercapacitor systems where its conductivity and catalytic activity offer advantages over conventional oxide or sulfide alternatives in cost-sensitive or performance-demanding scenarios.

battery electrode materialselectrocatalysts for water splittingsupercapacitor electrodeshydrogen evolution catalystsenergy storage researchphotoelectrochemical devices

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	14,385.9	ksi	DFT
↳	16,060	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	9,719.2	ksi	DFT
↳	8,093.1	ksi	DFT · OptB88vdW

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2496	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00900	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3158	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

CoSe2 — Properties & Data | MatWorld

CoSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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