Thermal and Volumetric Studies of Complex Chemical Hydrides: Li-modified/Ti- doped Mg2FeH6, Sonicated LiNH2/LiH and Zn- doped NaBH4

2005 ◽  
Vol 885 ◽  
Author(s):  
Sesha Srinivasan ◽  
Lisa McElwee-White ◽  
Elias Stefanakos ◽  
Yogi Goswami ◽  
Seth Dumbris

ABSTRACTLight weight hydrogen storage systems are indeed essential for the on-board automotive vehicular applications. Complex chemical hydrides bearing light elements such as Li, Na, Mg etc. and their catalytic doping with transition metal species are presently being investigated. The Li- modified Mg2FeH6structure have been thermally characterized using DSC and TGA techniques. It is interesting to notice that the reduction in the decomposition temperature of about 100° C has been unambiguously observed for the Li modified Mg2FeH6. Besides, there is an enhancement in sorption kinetics for the Ti- doped Mg2FeH6. The role of Ti- species on the dehydrogenation and rehdyrogenation properties of NaAlH4have been explored by heat flow measurements using high pressure differential scanning calorimetry. We have also developed the Li-amide/LiH system by sonicated process and studied their PCT characteristics. A new class of hydrogen storage system Zn(BH4)2with theoretical hydrogen capacity of 8.4 wt.% have been synthesized and we have determined their gravimetric and volumetric characteristics.

2005 ◽  
Vol 884 ◽  
Author(s):  
Xia Tang ◽  
Daniel A Mosher ◽  
Donald L Anton

AbstractSodium alanate has been studied as a promising candidate material for reversible hydrogen storage due to its intermediate temperature range and relatively high storage capacity. Its rates of desorption and absorption of hydrogen have been shown to be enhanced by the addition of Ti in various compounds. To date, the sorption kinetics, especially absorption kinetics, is not well understood. In this study, a practical sorption kinetics model for TiCl3 catalyzed NaAlH4 has been developed to assist in the engineering design and evaluation of a prototype hydrogen storage system.


2001 ◽  
Vol 322 (1-2) ◽  
pp. 246-248 ◽  
Author(s):  
Huan-tang Yuan ◽  
Rui Cao ◽  
Lian-bang Wang ◽  
Yi-jing Wang ◽  
Xue-ping Gao ◽  
...  

2013 ◽  
Vol 77 (12) ◽  
pp. 571-574
Author(s):  
Shigehito Isobe ◽  
Miki Dohkoshi ◽  
Yongming Wang ◽  
Naoyuki Hashimoto ◽  
Somei Ohnuki ◽  
...  

2018 ◽  
Vol 1 (12) ◽  
pp. 6824-6832 ◽  
Author(s):  
Qiwen Lai ◽  
Md Zakaria Quadir ◽  
Kondo-Francois Aguey-Zinsou

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