Halometallate ionic liquids: thermal properties, decomposition pathways, and life cycle considerations

Clarke, C. J. ORCID: https://orcid.org/0000-0003-2698-3490, Baaqel, H., Matthews, R. P. ORCID: https://orcid.org/0000-0003-3328-4954, Chen, Y., Lovelock, K. R. J. ORCID: https://orcid.org/0000-0003-1431-269X, Hallett, J. P. ORCID: https://orcid.org/0000-0003-3431-2371 and Licence, P. ORCID: https://orcid.org/0000-0003-2992-0153 (2022) Halometallate ionic liquids: thermal properties, decomposition pathways, and life cycle considerations. Green Chemistry, 24 (15). pp. 5800-5812. ISSN 1463-9270 doi: 10.1039/d2gc01983c

Abstract/Summary

Halometallate ionic liquids provide new opportunities for industrial catalytic processes because of their unique blend of physical and chemical properties. Tunability underpins the success of ionic liquids because small structural changes can have drastic effects on either property. Catalysis can be optimised by adjusting structures to target properties such as Lewis basicity and acidity, but the structural changes have simultaneous impacts on physical properties. In this work, we provide a thorough, methodical, and reliable list of thermal parameters to help define temperature limits to prevent catalyst poisoning and limit the need to replace costly and environmentally demanding solvents. Mechanistic insights show that decomposition is particularly detrimental for halometallate ionic liquids, and life cycle analysis highlights that lower levels of organic cations are better for economic and environmental sustainability.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/106713
Identification Number/DOI	10.1039/d2gc01983c
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Uncontrolled Keywords	Pollution, Environmental Chemistry
Publisher	Royal Society of Chemistry (RSC)
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