Exploring Ternary and Quaternary Mixtures in the LiBH4-NaBH4-KBH4-Mg(BH4)(2)-Ca(BH4)(2) System

Dematteis, Erika M.; Pistidda, Claudio; Dornheim, Martin; Baricco, Marcello

Abstract

Binary combinations of borohydrides have been extensively investigated evidencing the formation of eutectics, bimetallic compounds or solid solutions. In this paper, the investigation has been extended to ternary and quaternary systems in theLiBH4-NaBH4-KBH4-Mg(BH4)2-Ca(BH4)2 system. Possible interactions among borohydrides in equimolar composition has been explored by mechanochemical treatment. The obtained phases were analysed by X-ray diffraction and the thermal behaviour of the mixtures were analysed by HP-DSC and DTA, defining temperature of transitions and decomposition reactions. There lease of hydrogen was detected by MS, showing the role of the presence of solid solutions and multi-cation compounds on the hydrogen desorption reactions. The presence of LiBH4generally promotes the release of H2 at about 200 °C, while KCa(BH4)3 promotes the release in a single-step reaction at higher temperatures

Citation

Dematteis, E. M., Pistidda, C., Dornheim, M., & Baricco, M. (2019). Exploring Ternary and Quaternary Mixtures in the LiBH4-NaBH4-KBH4-Mg(BH4)(2)-Ca(BH4)(2) System. ChemPhysChem, 20(10), 1348-1359. https://doi.org/10.1002/CPHC.201801130

• Journal Article Type: Article
• Publication Date: 2019
• Deposit Date: Apr 3, 2025
• Journal: ChemPhysChem
• Print ISSN: 1439-4235
• Electronic ISSN: 1439-7641
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 20
• Issue: 10
• Pages: 1348-1359
• DOI: https://doi.org/10.1002/CPHC.201801130
• Keywords: Borohydrides, complex hydrides, hydrogen storage, quaternary mixtures, ternary mixtures
• Public URL: https://nottingham-repository.worktribe.com/output/34872787
• Publisher URL: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cphc.201801130
• Additional Information: Received: 2018-12-06; Published: 2019-02-22