K6CoS4

metal

· JVASP-49211· K6CoS4

K6CoS4 is an intermetallic sulfide compound containing potassium, cobalt, and sulfur, representing a rare-earth or specialty metal chalcogenide in the research domain. This material belongs to an emerging class of multinary metal sulfides being investigated for energy storage and catalytic applications, particularly in battery electrodes and electrocatalysis for hydrogen evolution. While not yet established in mainstream industrial production, materials in this family are notable for their potential to offer tunable electronic properties and cost advantages over precious-metal-based catalysts.

battery electrode materialselectrocatalysis researchhydrogen evolution catalystsenergy storage devicesexperimental/developmental compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08172	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.4650	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	25.03	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.7067	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8500	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	6.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000294	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000896	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-242.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	245.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02460	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.076	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

K6CoS4 — Properties & Data | MatWorld

K6CoS4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control