Co4 O8

semiconductor

· Co4 O8

Co4O8 is a cobalt oxide semiconductor compound that exists in the mixed-valence cobalt oxide family, potentially exhibiting spinel or related crystal structures common to transition metal oxides. While not a mainstream commercial material, cobalt oxides of this composition are investigated in research contexts for energy storage and catalytic applications, where their variable oxidation states and electronic properties offer advantages over simpler binary oxides.

battery electrodes and energy storageheterogeneous catalysisoxygen evolution catalystselectrochemical devicesmaterials research and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	252.3	GPa	—
Shear Modulus(G)	141.4	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00370	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8820	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.

Co4 O8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control