Mg3ReH7 — Properties & Data | MatWorld

Mg3ReH7

ceramic

· JVASP-51723· Mg3ReH7

Mg3ReH7 is a complex metal hydride ceramic compound combining magnesium, rhenium, and hydrogen—a material family of primary interest in hydrogen storage and energy research rather than established industrial production. This compound belongs to the experimental intermetallic hydride class, where hydrogen atoms occupy specific crystallographic sites within a metallic lattice, offering potential for safe hydrogen containment and release under controlled conditions. Researchers investigate such materials for next-generation energy storage systems and chemical applications where traditional hydrides or polymeric alternatives fall short, though practical engineering adoption remains limited pending improvements in synthesis scalability and thermal cycling performance.

hydrogen storage systemsadvanced energy storageresearch and developmentsolid-state hydrogen containmentmaterials science experimentationfuture fuel cell applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	66.37	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	46.76	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.117	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.687	eV	DFT · OptB88vdW
↳	3.220	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.450	-	DFT · OptB88vdW
↳	4.603	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00244	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00128	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-326	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	461	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	2.730	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2806	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.

Mg3ReH7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental