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

被引：21
|
作者：
Wang, Han [1 ,2 ]
Cao, Hujun [1 ]
Wu, Guotao [1 ]
He, Teng [1 ]
Chen, Ping [1 ]
机构：
[1] Dalian Inst Chem Phys, Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
来源：
ENERGIES | 2015年 / 8卷 / 07期
基金：
国家杰出青年科学基金; 中国国家自然科学基金;
关键词：
hydrogen storage; amide-hydride system; sorption kinetics; Li2BNH6; MG-N-H; DESORPTION PROPERTIES; SYSTEM; HYDRIDE; COMPLEX; LIBH4; LINH2-MGH2; KINETICS; LIH;
D O I：
10.3390/en8076898
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
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.
引用
收藏
页码：6898 / 6909
页数：12
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