Reardon, H., Mazur, N. and Gregory, D. H. (2013) Facile synthesis of nanosized sodium magnesium hydride, NaMgH3. Progress in Natural Science, 23(3), pp. 343-350. (doi: 10.1016/j.pnsc.2013.05.003)
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Abstract
The ternary magnesium hydride NaMgH3 has been synthesised via reactive milling techniques. The method employed neither a reactive H2 atmosphere nor high pressure sintering or other post-treatment processes. The formation of the ternary hydride was studied as a function of milling time and ball:powder ratio. High purity NaMgH3 powder (orthorhombic space group Pnma, a=5.437(2) Å, b=7.705(5) Å, c=5.477(2) Å; Z=4) was prepared in 5 h at high ball:powder ratios and characterised by powder X-ray diffraction (PXD), Raman spectroscopy and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX). The products formed sub-micron scale (typically 200–400 nm in size) crystallites that were approximately isotropic in shape. The dehydrogenation behaviour of the ternary hydride was investigated by temperature programmed desorption (TPD). The nanostructured hydride releases hydrogen in two steps with an onset temperature for the first step of 513 K.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Reardon, Miss Hazel and Gregory, Professor Duncan |
Authors: | Reardon, H., Mazur, N., and Gregory, D. H. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Progress in Natural Science |
Publisher: | Elsevier |
ISSN: | 1002-0071 |
ISSN (Online): | 1745-5391 |
Copyright Holders: | Copyright © 2014 The Authors |
First Published: | First published in Progress in Natural Science 23(3):343-350 |
Publisher Policy: | Reproduced under a Creative Commons License |
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