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Mechano-Chemical Synthesis and Characterization of New Complex Hydrides for Hydrogen Storage

Published online by Cambridge University Press:  01 February 2011

Sesha Srinivasan ,
Luis Rivera ,
Elias Stefanakos  and
Yogi Goswami
Sesha Srinivasan
Affiliation:
sesha@eng.usf.edu, University of South Florida, Clean Energy Research Center, College of Engineering, 4202 E Fowler Av, Tampa, FL, 33620, United States, 813-974-0759, 813-974-5250
Luis Rivera
Affiliation:
lrivera3@mail.usf.edu, Clean Energy Research Center, College of Engineering, University of South Florida, Tampa, FL, 33620, United States
Elias Stefanakos
Affiliation:
stefanak@eng.usf.edu, Clean Energy Research Center, College of Engineering, University of South Florida, Tampa, FL, 33620, United States
Yogi Goswami
Affiliation:
goswami@ufl.edu, Clean Energy Research Center, College of Engineering, University of South Florida, Tampa, FL, 33620, United States
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Abstract

Mechano-chemical synthesis has been employed to prepare new light weight complex borohydrides. The precursor complex borohydrides such as NaBH4 and LiBH4 have been used since these materials posses high hydrogen storage capacity of 13.0 and 19.6 wt.%. This advanced materials based technology will meet the US-DOE grand challenge technical targets. The thermal calorimetric and gravimetric analysis of these complex borohydrides exhibits the hydrogen decomposition temperature (Tdec) of 100–150° C with theoretical capacity of ∼8.0-10.0 wt%. The catalysts (e.g. ZnCl2, TiFx3) doping and destabilization of the borohydride by reacting with binary hydride (MgH2) reveals the enhancement of decomposition kinetics and reversible dehydrogenation-rehydrogenation behavior.

Keywords

hydrogenationmechanical alloyingenergy-storage
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 927: Symposium EE – Hydrogen Storage Materials , 2006 , 0927-EE02-06
Copyright
Copyright © Materials Research Society 2006

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References

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