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ID 29241
file
creator
Yamamoto, Hikaru
Hino, Satoshi
Nakanishi, Haruyuki
subject
Hydrogen storage systems
Thermodynamic properties
Ammonia
Alkali metal hydrides
Mechanical milling
NDC
Physics
abstract
Ammonia (NH3) reacts with alkali metal hydrides MH (M = Li, Na, and K) in an exothermic reaction to release hydrogen (H-2) at room temperature, resulting that alkali metal amides (MNH2) which are formed as by-products. In this work, hydrogen desorption properties of these systems and the condition for the recycle from MNH2 back to MH were investigated systematically. For the hydrogen desorption reaction, the reactivities of MH with NH3 were better following the atomic number of M on the periodic table, Li < Na < K. It was confirmed that the hydrogen absorption reaction of all the systems proceeded under 0.5 MPa of H-2 flow condition below 300 degrees C.
journal title
International Journal of Hydrogen Energy
volume
Volume 34
issue
Issue 24
start page
9760
end page
9764
date of issued
2009-12
publisher
Pergamin
Elsevier Science Ltd
issn
0360-3199
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
relation url
department
Institute for Advanced Materials Research