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https://doi.org/10.1016/j.jallcom.2005.02.010
Title: | Thermodynamic and kinetic investigations of the hydrogen storage in the Li-Mg-N-H system | Authors: | Xiong, Z. Hu, J. Wu, G. Chen, P. Luo, W. Gross, K. Wang, J. |
Keywords: | Activation energy Heat-of-desorption Hydrogen storage Ternary imide |
Issue Date: | 2-Aug-2005 | Citation: | Xiong, Z., Hu, J., Wu, G., Chen, P., Luo, W., Gross, K., Wang, J. (2005-08-02). Thermodynamic and kinetic investigations of the hydrogen storage in the Li-Mg-N-H system. Journal of Alloys and Compounds 398 (1-2) : 235-239. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jallcom.2005.02.010 | Abstract: | Hydrogen desorption from the mixture of Mg(NH2)2 and 2LiH presents two pressure-dependent segments at a given temperature - ∼2/3 of the hydrogen is released at relatively higher pressures and forms a pressure plateau and the other 1/3 is desorbed at lower pressures. The overall reaction heat measured in a differential scanning calorimeter is 44.1 kJ/mol H 2, while the heat-of-desorption of H2 in the higher pressure plateau is about 38.9 kJ/mol H2, a favorable thermodynamics for PEM Fuel Cell application. However, the relatively higher activation energy (Ea = 102 kJ/mol) sets a kinetic barrier. © 2005 Elsevier B.V. All rights reserved. | Source Title: | Journal of Alloys and Compounds | URI: | http://scholarbank.nus.edu.sg/handle/10635/98382 | ISSN: | 09258388 | DOI: | 10.1016/j.jallcom.2005.02.010 |
Appears in Collections: | Staff Publications |
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