Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol.
Moya Raposo, Xavier
Nature Publishing Group
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Lloveras, P., Aznar, A., Barrio, M., Negrier, P., Popescu, C., Planes, A., Mañosa, L., et al. (2019). Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol.. Nature communications, 10 (1), 1803. https://doi.org/10.1038/s41467-019-09730-9
There is currently great interest in replacing the harmful volatile hydrofluorocarbon fluids used in refrigeration and air-conditioning 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 (CH3)2C(CH2OH)2 display unprecedentedly large pressure driven thermal changes near room temperature due to molecular reconfiguration, 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.
Royal Society (uf120210)
ECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (680032)
Royal Society (URF\R\180035)
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External DOI: https://doi.org/10.1038/s41467-019-09730-9
This record's URL: https://www.repository.cam.ac.uk/handle/1810/291291
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