Developing sustainable FeTi alloys for hydrogen storage by recycling

Shang, Yuanyuan; Liu, Shaofei; Liang, Zhida; Pyczak, Florian; Lei, Zhifeng; Heidenreich, Tim; Schökel, Alexander; Kai, Ji-jung; Gizer, Gökhan; Dornheim, Martin; Klassen, Thomas; Pistidda, Claudio

Abstract

Intermetallic alloys such as FeTi have attracted ever-growing attention as a safe and efficient hydrogen storage medium. However, the utilization of high-purity metals for the synthesis of such materials poses considerable concerns over the environmental sustainability of their large-scale production. Here, we report an approach for synthesizing FeTi from industrial scraps of iron (steels C45 and 316 L) and titanium (Ti alloy Grade 2) to reduce the carbon footprint associated with FeTi alloy synthesis, without compromising their hydrogen storage properties. At 50 °C and a pressure of 0 to 100 bar, the alloys obtained by using C45-Ti Grade 2 and 316L-Ti Grade 2 can absorb a maximum amount of hydrogen of 1.61 wt.% and 1.50 wt.%, respectively. Moreover, depending on the type of steel utilized, the thermodynamic properties can be modified. Our findings pave a pathway for developing high-performance, environmentally-sustainable FeTi alloys for hydrogen storage purposes using industrial metal wastes.

Citation

Shang, Y., Liu, S., Liang, Z., Pyczak, F., Lei, Z., Heidenreich, T., Schökel, A., Kai, J.-J., Gizer, G., Dornheim, M., Klassen, T., & Pistidda, C. (2022). Developing sustainable FeTi alloys for hydrogen storage by recycling. Communications Materials, 3, Article 101. https://doi.org/10.1038/s43246-022-00324-5

• Journal Article Type: Article
• Acceptance Date: Dec 5, 2022
• Online Publication Date: Dec 20, 2022
• Publication Date: Dec 20, 2022
• Deposit Date: Aug 5, 2024
• Publicly Available Date: Aug 14, 2024
• Journal: Communications Materials
• Electronic ISSN: 2662-4443
• Publisher: Springer Nature
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Article Number: 101
• DOI: https://doi.org/10.1038/s43246-022-00324-5
• Public URL: https://nottingham-repository.worktribe.com/output/34872187
• Publisher URL: https://www.nature.com/articles/s43246-022-00324-5