Matsunaga, Tomoya Buchter, Florian Miwa, K. Towata, S. Orimo, S. Züttel, Andreas 2007-06-20 Magnesium borohydride (Mg(BH₄)₂) is a promising material for hydrogen storage because of its high gravimetric storage density (15.0 mass%). We intended to synthesize Mg(BH₄)₂ by decomposition reaction of LiBH₄ with MgCl₂ by heat treatment without using a solvent, where the product consists of LiCl and a compound of magnesium, boron and hydrogen. Hydrogen desorption temperature of the product is approximately 100 K lower than that of LiBH₄ and the decomposition consists of a two-step reaction. The products of the 1st and 2nd decomposition reactions are MgH₂ and Mg, respectively. This result indicates the following two-step reaction (1st reaction: Mg(BH₄)₂→MgH₂+2B+3H₂, 2nd reaction: MgH₂→Mg+H₂). The first decomposition peak is dominant and is around 563 K. The 2nd decomposition occurs at the temperature greater than 590 K. application/pdf https://folia.unifr.ch/global/documents/300717 https://folia.unifr.ch/documents/300717/files/zuettel_mbn.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2007.05.004 info:eu-repo/semantics/openAccess License undefined Renewable Energy. - 2008, vol. 33, no. 2, p. 193-196 hydrogen absorbing materials thermodynamic properties thermal analysis info:eu-repo/classification/udc/53 Magnesium borohydride: A new hydrogen storage material http://purl.org/coar/resource_type/c_6501