Direct hydrogenation of Mg and decomposition behavior of the hydride formed

Direct hydrogenation of Mg and decomposition behavior of the hydride formed

Under the catalytic action of ZrFe 1.4Cr 0.6, magnesium was hydrided into nanostructured MgH 2 and γ-MgH 2 directly by reaction ball-milling. The formation and decomposition behaviors of the hydrided phases were characterized by X-ray diffraction and thermal analysis (TGA and DSC). The hydrided phas...

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Veröffentlicht in:Journal of alloys and compounds 2000-12, Vol.313 (1), p.209-213
Hauptverfasser: Wang, P, Zhang, H.F, Ding, B.Z, Hu, Z.Q
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Gas–solid reactions
Hydrogen storage materials
Interstitial alloys
Materials and auxiliary equipments used in energy engineering
Mechanical alloying
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Zusammenfassung:Under the catalytic action of ZrFe 1.4Cr 0.6, magnesium was hydrided into nanostructured MgH 2 and γ-MgH 2 directly by reaction ball-milling. The formation and decomposition behaviors of the hydrided phases were characterized by X-ray diffraction and thermal analysis (TGA and DSC). The hydrided phases thus formed possess excellent dehydriding kinetics. Based on the calculation of local activation energy, the decomposition mechanism of the hydrided phases was probed.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(00)01186-5