Abnormal lattice behavior of MgH2 in isotope labeled LiBD4-MgH2 composites at the melting of LiBD4

Title
Abnormal lattice behavior of MgH2 in isotope labeled LiBD4-MgH2 composites at the melting of LiBD4
Authors
심재혁박미래조인화강승기최용남이희주노도영
Keywords
Hydrogen storage; LiBH4; MgH2; Isotope; X-ray diffraction; Lattice behavior; LiBD4
Issue Date
2019-11
Publisher
Journal of alloys and compounds
Citation
VOL 808, NO 1-151640-7
Abstract
these D atoms can occupy interstitals or lattice points of MgH2. Endothermic behavior of LiBD4 during melting might also have contriubuted to the contraction of MgH2. In addition, the intensity of MgH(D)2 Bragg peaks measured in in situ neutron diffraction experiment confirms that H/D exchange between the two hydrides starts below the LiBD4 melting temperature.; We found abnormal lattice behavior of MgH2 in LiBD4-MgH2 composites at the melting of LiBD4 using high resolution x-ray diffraction measurements. At the LiBD4 melting point, the tetragonal MgH2 unit cell contracted isotropically which is attributed to D atoms diffused from neighboring LiBD4
URI
http://pubs.kist.re.kr/handle/201004/69783
ISSN
0925-8388
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KIST Publication > Article
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