NaPPdS4 — Properties & Data | MatWorld

NaPPdS4

ceramic

· JVASP-24321· NaPPdS4

NaPPdS4 is a sodium-palladium polysulfide ceramic compound, representing an emerging class of mixed-metal sulfide ceramics with potential electrochemical and structural applications. This material belongs to the family of transition metal sulfide ceramics, which are of research interest for energy storage and catalytic systems where combined ionic and electronic conductivity is advantageous. While not yet established in mainstream industrial production, compounds in this family are being investigated for next-generation battery electrodes, solid-state electrolytes, and catalytic substrates where palladium's chemical reactivity and sulfide's ionic transport properties can be leveraged.

battery cathode materials (research)solid-state electrolytescatalytic substrateselectrochemical devicesadvanced ceramics (experimental)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	30.08	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	17.21	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.930	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.116	eV	DFT · OptB88vdW
↳	1.339	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.822	-	DFT · OptB88vdW
↳	6.181	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8367	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.923	me	DFT · OptB88vdW · 27°C
Thermoelectric Power Factor(PF)2 entries	0.00274	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00120	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-246.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	271.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.98	%	DFT · TBmBJ

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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5966	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

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.

NaPPdS4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental