MgAl2H8 — Properties & Data | MatWorld

MgAl2H8

metal

· JVASP-12556· MgAl2H8

MgAl2H8 is a magnesium-aluminum hydride compound belonging to the complex metal hydride family, which are materials designed to store and release hydrogen through reversible chemical reactions. This material is primarily of research and developmental interest rather than established in widespread industrial production, as it represents efforts to create high-capacity hydrogen storage media for next-generation energy applications. The magnesium-aluminum hydride system is notable for its potential to enable lightweight, solid-state hydrogen storage solutions that could support clean energy technologies, though practical deployment requires overcoming challenges in activation, cycling stability, and thermal management compared to conventional storage methods.

hydrogen storage systemsfuel cell vehicle developmentenergy storage researchportable power applicationsadvanced materials developmentclean energy infrastructure

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	20.98	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	11.21	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	1.034	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	4.664	eV	DFT · OptB88vdW
↳	6.601	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.068	-	DFT · OptB88vdW
↳	2.242	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8367	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.9033	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00126	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00172	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-168.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	249.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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)	0.02740	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1277	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

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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.

MgAl2H8

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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