CoP2

semiconductor

· CoP2

CoP₂ is a cobalt phosphide compound semiconductor with a metallic-like crystal structure, belonging to the family of transition metal phosphides. This material is primarily investigated for electrochemical and catalytic applications, particularly as an active catalyst material for hydrogen evolution, oxygen reduction, and water splitting reactions, where it competes with precious metal catalysts like platinum. CoP₂'s combination of relatively high stiffness and metallic conductivity makes it attractive for researchers seeking earth-abundant alternatives to platinum-group catalysts in energy conversion and environmental remediation technologies.

water splitting catalystshydrogen evolution electrodesoxygen reduction reactionselectrochemical cellsenergy conversion researchenvironmental catalysis

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	23,666.6	ksi	—
Shear Modulus(G)	17,635.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1813	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3500	eV	—
↳	0.4290	eV	—
Dielectric Constant (Relative Permittivity)(εr)	28.29 range 23.18–33.40median of 2 measurements	-	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-391.9	µV/K	—

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
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.5389	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.

CoP2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control