Giant barocaloric effects over a wide temperature range in superionic conductor AgI.
Giant barocaloric effects over a wide temperature range in superionic conductor AgI.
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DOI:
10.1038/s41467-017-01898-2
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发表时间:
2017-11-29
影响因子:
16.6
通讯作者:
Mañosa L
中科院分区:
文献类型:
--
作者:
Aznar A;Lloveras P;Romanini M;Barrio M;Tamarit JL;Cazorla C;Errandonea D;Mathur ND;Planes A;Moya X;Mañosa L
Current interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order. Here we demonstrate giant inverse barocaloric effects in the solid electrolyte AgI, near its superionic phase transition at ~420 K. Over a wide range of temperatures, hydrostatic pressure changes of 2.5 kbar yield large and reversible barocaloric effects, resulting in large values of refrigerant capacity. Moreover, the peak values of isothermal entropy change (60 J K−1 kg−1 or 0.34 J K−1 cm−3) and adiabatic temperature changes (18 K), which we identify for a starting temperature of 390 K, exceed all values previously recorded for barocaloric materials. Our work should therefore inspire the study of barocaloric effects in a wide range of solid electrolytes, as well as the parallel development of cooling devices. Barocaloric materials offer promise in solid-state cooling devices, but few materials have been show to display giant barocaloric effects near room temperature. Here, the authors demonstrate that solid electrolyte AgI displays giant inverse barocaloric effects near its superionic phase transition at ~420 K.
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影响因子:
0.6
作者:
Gorev, M. V.;Flerov, I. N.;Laptash, N. M.
通讯作者:
Laptash, N. M.
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
16.6
作者:
Bermúdez-García JM;Sánchez-Andújar M;Castro-García S;López-Beceiro J;Artiaga R;Señarís-Rodríguez MA
通讯作者:
Señarís-Rodríguez MA
影响因子:
10.8
作者:
Cazorla, Claudio;Errandonea, Daniel
通讯作者:
Errandonea, Daniel
影响因子:
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作者:
Davey, WP
通讯作者:
Davey, WP