Electrochemical Deuteration of Metastable MgTi Alloys: An Effective Way to Inhibit Phase Segregation

Electrochemical deuteration of metastable Mg‐Ti alloys is studied. To investigate the dynamics of deuterium atoms in the crystal host, the as‐prepared hydrides are examined by means of NMR spectroscopy. Remarkably the host compound, which phase segregates upon gas phase deuteration at high temperatu...

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Bibliographic Details
Published in:Advanced energy materials 2014-01, Vol.4 (1), p.1-n/a
Main Authors: Manivasagam, Thirugnasambandam G., Magusin, Pieter C. M. M., Srinivasan, Subramanian, Krishnan, Gopi, Kooi, Bart J., Notten, Peter H. L.
Format: Article
Language:English
Subjects:
Alloys
Atomic beam spectroscopy
batteries
Deuteration
Deuterium
Exchange
hydrogen storage
phase segregation
Preserves
Segregations
Titanium
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Summary:Electrochemical deuteration of metastable Mg‐Ti alloys is studied. To investigate the dynamics of deuterium atoms in the crystal host, the as‐prepared hydrides are examined by means of NMR spectroscopy. Remarkably the host compound, which phase segregates upon gas phase deuteration at high temperatures, preserves its original structure during low temperature electrochemical deuteration. Deuterium atoms exchange dynamically between Mg‐rich and Ti‐rich sites.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201300590