LLOVERAS, P.; AZNAR, A.; BARRIO, M.; NEGRIER, Ph.; POPESCU, C.; PLANES, A.; MAÑOSA, L.; STERN-TAULATS, E.; AVRAMENKO, A.; MATHUR, N.; MOYA, X.; TAMARIT, J.-Ll.

doi:10.1038/s41467-019-09730-9

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LLOVERAS, P.
Universitat Politècnica de Catalunya = Université polytechnique de Catalogne [Barcelona] [UPC]

AZNAR, A.
Universitat Politècnica de Catalunya = Université polytechnique de Catalogne [Barcelona] [UPC]

BARRIO, M.
Universitat Politècnica de Catalunya = Université polytechnique de Catalogne [Barcelona] [UPC]

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Article de revue

Ce document a été publié dans

Nature Communications. 2019-04-18, vol. 10, n° 1, p. 1803 (1-7)

Nature Publishing Group

Résumé en anglais

There is currently great interest in replacing the harmful volatile hydrofluorocarbon fluids used in refrigeration and airconditioning with solid materials that display magnetocaloric, electrocaloric or mechanocaloric effects. However, the field-driven thermal changes in all of these caloric materials fall short with respect to their fluid counterparts. Here we show that plastic crystals of neopentylglycol (CH 3) 2 C(CH 2 OH) 2 display extremely large pressure-driven thermal changes near room temperature due to molecular reconfiguration, that these changes outperform those observed in any type of caloric material, and that these changes are comparable with those exploited commercially in hydrofluorocarbons. Our discovery of colossal barocaloric effects in a plastic crystal should bring barocaloric materials to the forefront of research and development in order to achieve safe environmentally friendly cooling without compromising performance.< Réduire

DOI

http://dx.doi.org/10.1038/s41467-019-09730-9

Projet Européen

Barocaloric materials for energy-efficient solid-state cooling

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Importé de hal

Unités de recherche

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798