Journal
SCRIPTA MATERIALIA
Volume 60, Issue 12, Pages 1129-1132Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.02.059
Keywords
Mechanical milling; Scanning electron microscopy (SEM); Synchrotron radiation; X-ray diffraction (XRD); Hydrogen storage
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Funding
- European Commission [MRTN-CT-2006-035366]
- XARMAE (Generalitat de Catalunya)
- MATGAS institute
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The desorption mechanism of 2NaBH(4) + MgH2 Composite has been investigated. The results show that the chemical interaction between MgH2 and NaBH4 is capable of decreasing the dehydrogenation temperature with respect to the single compounds. The dehydriding reaction starts at around 320 degrees C with the desorption of the MgH2 to Mg and proceeds via the chemical dismutation of NaBH4 in NaH and an intermediate specie. In situ synchrotron X-ray powder diffraction indicates that MgB2 is one of the final reaction products. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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