Report
Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol
| العنوان: | Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol |
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| المؤلفون: | Lloveras, Pol, Aznar, Araceli, Barrio, María, Negrier, Philippe, Popescu, Catalin, Planes, Antoni, Mañosa, Lluís, Stern-Taulats, Enric, Avramenko, Alex, Mathur, Neil D., Moya, Xavier, Tamarit, Josep-Lluís |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | 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. Comment: 4 figures, 1 table, 11 supplementary figures, 3 supplementary tables |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41467-019-09730-9 |
| URL الوصول: | http://arxiv.org/abs/1903.12010 |
| رقم الانضمام: | edsarx.1903.12010 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41467-019-09730-9 |
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