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Title: NMR to determine rates of motion and structures in metal-hydrides
Authors: Conradi, Mark S ×
Mendenhall, Michael P
Ivancic, Timothy M
Carl, Erik A
Browning, Caleb D
Notten, P. H. L
Kalisvaart, W. P
Magusin, Pieter
Bowman, R. C., Jr
Hwang, Son-Jong
Adolphi, Natalie L #
Issue Date: 2007
Publisher: Elsevier Sequoia
Series Title: Journal of Alloys and Compounds vol:446 pages:499-503
Conference: 10th International Symposium on Metal-Hydrogen Systems, Fundamentals and Applications location:Lahaina: HI date:OCT 01-06, 2006
Abstract: Measurements of nuclear magnetic resonance (NMR) relaxation times allow the rates of H and D atomic hopping in metal-hydrides to be determined. A first example compares the rates of H hopping in Mg65Sc35Pd2.4H220, a promising new battery electrode and storage alloy, to LaNi5Hx and to the end-members of the alloy system, ScH2 and MgH2. The motion of MgScH is more rapid than in the metallic ScH2 and the ionic MgH2, but slower than in LaNi5Hx. Magic-angle spinning (MAS) NMR of metal-deuterides is a newer method that can resolve inequivalent D atoms and measure the rate of diffusive exchange between the sites. Examples include the tetrahedral and octahedral sites in YD2+x and D in ZrNiDx.
ISSN: 0925-8388
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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