A novel strategy for reversible hydrogen storage in Ca(BH4)2. Issue 55 (26th May 2015)

• Record Type: Journal Article
• Authors: Yan, Yigang; Remhof, Arndt; Rentsch, Daniel; Züttel, Andreas; Giri, Santanab; Jena, Puru
• Is Part Of: Chemical communications. Volume 51:Issue 55(2015)
• Page Start: 11008
• Page End: 11011
• Publication Date: 2015-05-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c5cc03605d
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The reversible hydrogen storage in Ca(BH4 )2 at moderate conditions involves CaB2 H6 as a crucial reaction intermediate. Abstract : We report that decomposition pathway of Ca(BH4 )2 can be efficiently controlled by reaction temperature. That is, it decomposes into CaB6 at a lower temperature range of 320 to 350 °C, but into amorphous boron at 400 to 450 °C. We identified the formation of CaB2 H6 as the crucial intermediate step on the way to CaB6 that only forms at 320 to 350 °C.