Hydrogen Distribution in Partly Desorbed MgH2 Samples

Stepan Alexandrovich Lushnikov; Tatyana Victorovna Filippova; Ivan Anatolievich Bobrikov

doi:10.4028/www.scientific.net/DF.22.34

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Hydrogen Distribution in Partly Desorbed MgH₂ Samples

Abstract:

The structure of MgH₂ samples has been investigated by the neutron diffraction method at room temperature and 5 K. Samples of MgH₂ have been prepared with vacuum extraction technique at high temperature. Obtained neutron data demonstrated that samples contain coexisting Mg and MgH₂ phases in different rate. The distribution of hydrogen atoms in the structure of the samples is comparable at both temperatures. Collected neutron data and results of X-ray analysis show that microstructure of the samples is different at room and at low temperature. Non-stability of partly desorbed MgH₂ samples after low temperature treatment has been discussed on basis of different diffusion of hydrogen atoms in varied microstructure.

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Diffusion Foundations (Volume 22)

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34-38

DOI:

https://doi.org/10.4028/www.scientific.net/DF.22.34

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Online since:

May 2019

Authors:

Stepan Alexandrovich Lushnikov*, Tatyana Victorovna Filippova, Ivan Anatolievich Bobrikov

Keywords:

Magnesium Hydride, Neutron Diffraction, Phases Transition

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References

[1] M. Vittori Antisari, A. Aurora, D. Mirabile Gattia, A. Montone, Phase transformation from Mg to MgH2 studied by SEM metallography, Scripta Matter. 61 (2009) 1064-1070.

DOI: 10.1016/j.scriptamat.2009.08.030

Google Scholar

[2] J. - C. Crivello, B. Dam, R. V. Denys, M. Dornheim, D. M. Grant, J. Huot, T. R. Jensen, P. de Jongh, M. Latroche, C. Milanese, D. Milcius, G. S. Walker, C. J. Webb, C. Zlotea, V. A. Yartys, Review of magnesium hydride-based materials: development and optimization, J. Appl. Phys. A (216) 122 (2016) 97-117.

DOI: 10.1007/s00339-016-9602-0

Google Scholar

[3] P. Chen, M. Zhu, Recent progress in hydrogen storage, Mater. Today. 11(12) (2008) pp.36-43.

Google Scholar

[4] C. Zlotea, M. Sahlberg, S. Ozbilen, P. Moretto, Y. Andersson, Hydrogen desorption studies of the Mg24Y5-H2 system, Acta Mater. 56(11) (2008) 2421-2428.

DOI: 10.1016/j.actamat.2008.01.029

Google Scholar

[5] J.M. Haschke, Clark M.R, Phase equilibria and crystal growth of alkaline earth and lanthanide dihydrides, High Temp. Sci. 7 (1975)152-158.

Google Scholar

[6] M. Bortz, B. Bertheville, G. Bottger, K.Yvon, Structure of the high-pressure γ-MgH2 by neutron powder diffraction, J. Alloys and Compd. L4-L6 (1999) 287-294.

DOI: 10.1016/s0925-8388(99)00028-6

Google Scholar

[7] D.A. Edwards, Phase changes in Mg-Cd alloys in the region of Mg3Cd, J. Appl. Phys. 37 (1966) 561-564.

Google Scholar

[8] V.A. Somenkov, S.Sh. Shilshtein, Phase transition in hydrides of d-metals, Zeitschrift fur Physikalische Chemie Neue Folge. 117 (1979) 124-134.

Google Scholar