MoMoO2S

semiconductor

· MoMoO2S

MoMoO₂S is a molybdenum-based mixed-valence sulfide compound that belongs to the emerging class of transition metal chalcogenides, combining molybdenum in multiple oxidation states with oxygen and sulfur. This material is primarily of research interest for electrocatalytic applications, particularly in hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) systems, where its heteroatom doping and defect-rich structure offer enhanced catalytic activity compared to single-phase molybdenum compounds. Engineers investigating cost-effective alternatives to platinum-group catalysts or designing energy storage and conversion devices would consider this compound for its potential to improve electrochemical performance in alkaline and acidic environments.

electrocatalysishydrogen generationenergy storagefuel cellswater splittingresearch semiconductor applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.2000	eV	—
Magnetic Moment(μB)	2.381	μB	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.7800	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.

MoMoO2S

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control