Ni1 H1 O2

semiconductor
· Ni1 H1 O2

Nickel oxyhydroxide (NiOOH) is a layered semiconductor compound commonly encountered as an oxidation product of nickel or nickel hydroxide, and is a key active material in alkaline battery systems and electrochemical supercapacitors. It is valued in energy storage applications for its high electrochemical activity, reversible redox behavior, and ability to cycle between multiple oxidation states, making it particularly attractive for rechargeable alkaline batteries, nickel-metal hydride cells, and pseudocapacitive devices where cost-effectiveness and stability are priorities over energy density. The material is also being investigated in water electrolysis, oxygen evolution catalysis, and photoelectrochemical applications due to its tunable electronic structure and catalytic potential.

alkaline battery cathodesnickel-metal hydride cellselectrochemical supercapacitorswater electrolysis catalystsoxygen evolution reactionenergy storage systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
—
Pa——
Shear Modulus(G)
—
Pa——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
—
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.