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Title: Hydrogen release from Mg(NH2)2 - MgH2 through mechanochemical reaction
Authors: Hu, J. 
Wu, G. 
Liu, Y. 
Xiong, Z. 
Chen, P. 
Murata, K.
Sakata, K.
Wolf, G.
Issue Date: 3-Aug-2006
Source: Hu, J., Wu, G., Liu, Y., Xiong, Z., Chen, P., Murata, K., Sakata, K., Wolf, G. (2006-08-03). Hydrogen release from Mg(NH2)2 - MgH2 through mechanochemical reaction. Journal of Physical Chemistry B 110 (30) : 14688-14692. ScholarBank@NUS Repository.
Abstract: A total of 7.4 wt % of hydrogen was released from the mixture of magnesium amide and magnesium hydride at a molar ratio of 1:2 by mechanical ball milling. Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD) characterizations along with the amount of hydrogen released at different stages of ball milling reveal that magnesium imide was first formed in the reaction. The imide then reacted continuously with magnesium hydride and was converted to magnesium nitride and hydrogen. Thermodynamic calculation shows that the hydrogen desorption is a mild endothermic reaction with the standard enthalpy change of about 3.5 kJ/mol of H2. © 2006 American Chemical Society.
Source Title: Journal of Physical Chemistry B
ISSN: 15206106
DOI: 10.1021/jp061279u
Appears in Collections:Staff Publications

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