K2 Mn4 O8

semiconductor

· K2 Mn4 O8

K₂Mn₄O₈ is a layered manganese oxide semiconductor with a potassium-stabilized tunnel structure, belonging to the hollandite family of mixed-valence metal oxides. This compound is primarily investigated as a research material for energy storage and catalytic applications, where its redox-active manganese centers and ion-transport pathways offer potential advantages in battery electrodes and environmental remediation processes. Unlike conventional single-phase oxides, its layered architecture enables tunable electronic properties and ion insertion/extraction capability, making it a candidate for next-generation battery chemistries and heterogeneous catalysis.

lithium-ion battery electrodes (research)oxygen reduction catalystspotassium-ion battery materialswater treatment (contaminant oxidation)electrochemical energy storagesolid-state ion conductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00280	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.896	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.

K2 Mn4 O8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control