RbMgH3 — Properties & Data | MatWorld

RbMgH3

ceramic

· JVASP-23961· RbMgH3

RbMgH3 is a complex metal hydride ceramic composed of rubidium, magnesium, and hydrogen. This material belongs to the family of hydrogen storage compounds and ionic hydrides, which are primarily investigated in research and development contexts rather than established commercial production. The compound is of particular interest for solid-state hydrogen storage applications and as a potential component in advanced energy storage systems, where its ability to reversibly absorb and release hydrogen makes it notable compared to conventional storage methods; however, it remains largely in the experimental stage with ongoing investigation into its thermal stability, decomposition mechanisms, and practical viability for engineering systems.

hydrogen storage researchsolid-state energy storageadvanced ceramics developmentfuel cell technologymaterials science experimentationnext-generation battery systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09451	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.858	eV	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.3500	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.7900	me	DFT · OptB88vdW · 27°C
Thermoelectric Power Factor(PF)2 entries	0.000637	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00196	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-92.03	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	250.3	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3669	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.

RbMgH3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental