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:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
14,385.9
ksi—
↳
16,060
ksi—
Poisson's Ratio(ν)
0.2900
-—
Shear Modulus(G)2 entries
9,719.2
ksi—
↳
8,093.1
ksi—
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.2496
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
-8.107
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.00900
eV/atom—
Formation Energy(ΔHf)
-0.3158
eV/atom—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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