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Multicaloric Cryocooling Using Heavy Rare-Earth Free La(Fe,Si) 13 -Based Compounds.
- Source :
-
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Jul 24; Vol. 16 (29), pp. 38208-38220. Date of Electronic Publication: 2024 Jul 11. - Publication Year :
- 2024
-
Abstract
- The transition toward a carbon-neutral society based on renewable energies goes hand in hand with the availability of energy-efficient technologies. Magnetocaloric cooling is a very promising refrigeration technology to fulfill this role regarding cryogenic gas liquefaction. However, the current reliance on highly resource critical, heavy rare-earth-based compounds as magnetocaloric material makes global usage unsustainable. Here, we aim to mitigate this limitation through the utilization of a multicaloric cooling concept, which uses the external stimuli of isotropic pressure and magnetic field to tailor and induce magnetostructural phase transitions associated with large caloric effects. In this study, La <subscript>0.7</subscript> Ce <subscript>0.3</subscript> Fe <subscript>11.6</subscript> Si <subscript>1.4</subscript> is used as a nontoxic, low-cost, low-criticality multiferroic material to explore the potential, challenges, and peculiarities of multicaloric cryocooling, achieving maximum isothermal entropy changes up to -28 J (kg K) <superscript>-1</superscript> in the temperature range from 190 K down to 30 K. Thus, the multicaloric cooling approach offers an additional degree of freedom to tailor the phase transition properties and may lead to energy-efficient and environmentally friendly gas liquefaction based on designed-for-purpose, noncritical multiferroic materials.
Details
- Language :
- English
- ISSN :
- 1944-8252
- Volume :
- 16
- Issue :
- 29
- Database :
- MEDLINE
- Journal :
- ACS applied materials & interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 38990047
- Full Text :
- https://doi.org/10.1021/acsami.4c05397