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Open AccessArticle

The improved Hydrogen Storage Performances of the Multi-Component Composite: 2Mg(NH2)2–3LiH–LiBH4

by Han Wang 1,2, Hujun Cao 1, Guotao Wu 1,*, Teng He 1 and Ping Chen 1
Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Author to whom correspondence should be addressed.
Academic Editor: Craig M. Jensen
Energies 2015, 8(7), 6898-6909;
Received: 25 May 2015 / Revised: 28 June 2015 / Accepted: 30 June 2015 / Published: 10 July 2015
(This article belongs to the Special Issue Hydrides: Fundamentals and Applications)
2Mg(NH2)2–3LiH–LiBH4 composite exhibits an improved kinetic and thermodynamic properties in hydrogen storage in comparison with 2Mg(NH2)2–3LiH. The peak temperature of hydrogen desorption drops about 10 K and the peak width shrinks about 50 K compared with the neat 2Mg(NH2)2–3LiH. Its isothermal dehydrogenation and re-hydrogenation rates are respectively 2 times and 18 times as fast as those of 2Mg(NH2)2–3LiH. A slope desorption region with higher equilibrium pressure is observed. By means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) analyses, the existence of Li2BNH6 is identified and its roles in kinetic and thermodynamic enhancement are discussed. View Full-Text
Keywords: hydrogen storage; amide-hydride system; sorption kinetics; Li2BNH6 hydrogen storage; amide-hydride system; sorption kinetics; Li2BNH6
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Wang, H.; Cao, H.; Wu, G.; He, T.; Chen, P. The improved Hydrogen Storage Performances of the Multi-Component Composite: 2Mg(NH2)2–3LiH–LiBH4. Energies 2015, 8, 6898-6909.

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