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Title: Effects of ball-milling conditions on dehydrogenation of Mg(NH2)2-MgH2
Authors: Hu, J. 
Xiong, Z. 
Wu, G. 
Chen, P. 
Murata, K.
Sakata, K.
Keywords: Ball-milling time
Hydrogen desorption
Imide formation
Magnesium amide
Magnesium hydride
Issue Date: 13-Sep-2006
Source: Hu, J., Xiong, Z., Wu, G., Chen, P., Murata, K., Sakata, K. (2006-09-13). Effects of ball-milling conditions on dehydrogenation of Mg(NH2)2-MgH2. Journal of Power Sources 159 (1 SPEC. ISS.) : 120-125. ScholarBank@NUS Repository.
Abstract: The dependence of chemical reaction between Mg(NH2)2 and MgH2 on the ball-milling conditions has been investigated. While the decomposition of the component Mg(NH2)2 resulted in gaseous products consisting mainly of ammonia, the mixtures of Mg(NH2)2-MgH2 prepared by ball-milling released H2 at temperatures as low as 65 °C. In addition, the increase in ball-milling time can effectively suppress the ammonia evolution during the thermal treatment. The conversion of the amide and hydride to imide-like structure was demonstrated by FTIR and XRD characterization. A total amount of 4.8 wt.% of H2 could be released from the investigated system. © 2006 Elsevier B.V. All rights reserved.
Source Title: Journal of Power Sources
ISSN: 03787753
DOI: 10.1016/j.jpowsour.2006.04.005
Appears in Collections:Staff Publications

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