화학공학소재연구정보센터
International Journal of Hydrogen Energy, Vol.41, No.14, 5969-5978, 2016
Destabilization of lithium hydride by the substitution of group 14 elements: A review
Lithium metal has been considered as an important candidate in energy sector due to its unique properties of hydrogen binding and electrochemical merits. Lithium hydride has high hydrogen capacity (12.7 mass %), however, it requires 900 degrees C for 0.1 MPa desorption pressure due to the presence of strong ionic bond which generates many thermodynamic constraints. These thermodynamic constraints can be removed using a third element that forms a new compound with Li upon dehydrogenation of LiH. This new compound should have more stability than elemental Li. Group 14 elements of periodic table may have the ability to fulfil this criterion. The paper presents a comprehensive review based on our recent studies on hydrogen storage properties of a Li-M-H system. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.