P4 W2 O16

semiconductor

· P4 W2 O16

P4W2O16 is a tungsten-phosphorus oxide compound belonging to the polyoxometalate (POM) family of semiconducting ceramics. These materials are quasi-2D layered structures with mixed-valence metal centers, typically synthesized for research applications rather than high-volume industrial use. Interest in this material stems from its potential in catalysis, energy storage, and photochemical applications where the tunable electronic structure and active surface sites of polyoxometalates offer advantages over conventional semiconductors.

heterogeneous catalysisphotocatalytic water splittingelectrochemical energy storageresearch semiconductorsoxidation catalystsfunctional ceramics development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.025	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.214	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.

P4 W2 O16

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control