Hydrogenation via a low energy mechanochemical approach: the MgB2 case

Pistidda, Claudio; Santhosh, Archa; Jerabek, Paul; Shang, Yuanyuan; Girella, Alessandro; Milanese, Chiara; Dore, Maria; Garroni, Sebastiano; Bordignon, Simone; Chierotti, Michele R; Klassen, Thomas; Dornheim, Martin

Abstract

This work aims at investigating the effect that the energy transferred during particle collisions in a milling process entails on solid-gas reactions. For this purpose, the synthesis of Mg(BH4)2 from MgB2 in a pressurized hydrogen atmosphere was chosen as a model reaction. MgB2 was milled under a broad set of milling parameters (i.e. milling times and rotation regimes) and the obtained product thoroughly characterized. By proving the partial formation of Mg(BH4)2, the results of this investigation indicate that the energy transferred to the powder bed by the powder particles during milling is not negligible, in particular when the milling process is protracted for a long period.

Citation

Pistidda, C., Santhosh, A., Jerabek, P., Shang, Y., Girella, A., Milanese, C., Dore, M., Garroni, S., Bordignon, S., Chierotti, M. R., Klassen, T., & Dornheim, M. (2021). Hydrogenation via a low energy mechanochemical approach: the MgB2 case. Journal of Physics: Energy, 3(4), Article 044001. https://doi.org/10.1088/2515-7655/ABF81B

• Journal Article Type: Article
• Acceptance Date: Apr 14, 2021
• Online Publication Date: Aug 9, 2021
• Publication Date: Oct 1, 2021
• Deposit Date: Nov 14, 2024
• Publicly Available Date: Nov 20, 2024
• Journal: Journal of Physics: Energy
• Electronic ISSN: 2515-7655
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 4
• Article Number: 044001
• DOI: https://doi.org/10.1088/2515-7655/ABF81B
• Public URL: https://nottingham-repository.worktribe.com/output/34872533
• Publisher URL: https://iopscience.iop.org/article/10.1088/2515-7655/abf81b