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Dy(OH)3: A Paramagnetic Magnetocaloric for Hydrogen Liquefaction

Doheny, Patrick W., Chen, Jiasheng, Gruner, Thomas, Grosse, F. Malte, Saines, Paul J. (2023) Dy(OH)3: A Paramagnetic Magnetocaloric for Hydrogen Liquefaction. Journal of Materials Chemistry A, . Article Number D3TA05358J. ISSN 2050-7488. (doi:10.1039/D3TA05358J) (KAR id:103951)


The magnetic properties of a series of Ln(OH)3 (where Ln = Gd-Er) coordination polymer materials have been examined to evaluate their potential as magnetocaloric materials. Dy(OH)3 was found to exhibit an impressive magnetic entropy change of 33.4 J kg-1 K-1 at 12 K for a magnetic field change of 5-0 T, based on magnetisation measurements. Further magnetic heat capacity analysis indicated a maximum adiabatic temperature change of 8.4 K at 22.7 K. The favourable magnetocaloric parameters obtained for Dy(OH)3 demonstrated its effectiveness to act as magnetic cooling material for hydrogen liquefaction, since the boiling point of hydrogen aligns well with the temperature for peak magnetocaloric performance of Dy(OH)3 for high field changes.

Item Type: Article
DOI/Identification number: 10.1039/D3TA05358J
Additional information: For the purpose of open access, the author(s) has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising.
Subjects: Q Science
Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Chemistry and Forensics
Funders: Engineering and Physical Sciences Research Council (
Depositing User: Paul Saines
Date Deposited: 17 Nov 2023 14:26 UTC
Last Modified: 06 Mar 2024 12:33 UTC
Resource URI: (The current URI for this page, for reference purposes)

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