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https://doi.org/10.1021/cm800584x
Title: | Improvement of hydrogen storage properties of the Li-Mg-N-H system by addition of LiBH4 | Authors: | Hu, J. Liu, Y. Wu, G. Xiong, Z. Chua, Y.S. Chen, P. |
Issue Date: | 8-Jul-2008 | Citation: | Hu, J., Liu, Y., Wu, G., Xiong, Z., Chua, Y.S., Chen, P. (2008-07-08). Improvement of hydrogen storage properties of the Li-Mg-N-H system by addition of LiBH4. Chemistry of Materials 20 (13) : 4398-4402. ScholarBank@NUS Repository. https://doi.org/10.1021/cm800584x | Abstract: | Significant improvements in the hydrogen desorption/absorption properties of the Li-Mg-N-H system have been achieved by adding a small amount of LiBH 4. The onset as well as the peak temperatures of hydrogen desorption shift to lower temperatures. Five wt % of hydrogen can be fully desorbed at 140 °C and reabsorbed at 100°C. The kinetics of hydrogen desorption as well as absorption were found to be 3 times as fast as the pristine system. Thermodynamic analyses show that the temperature for equilibrium desorption pressure at 1 bar was 70°C, which is about 20°C lower than the pristine system. The enhancement in the hydrogen sorption properties was attributed to the weakening of N-H bonding in the metal amide molecules. © 2008 American Chemical Society. | Source Title: | Chemistry of Materials | URI: | http://scholarbank.nus.edu.sg/handle/10635/94009 | ISSN: | 08974756 | DOI: | 10.1021/cm800584x |
Appears in Collections: | Staff Publications |
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