Colossal and reversible barocaloric effect in liquid-solid-transition materials n-alkanes.
Colossal and reversible barocaloric effect in liquid-solid-transition materials n-alkanes.
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液固转变材料正烷烃中巨大且可逆的压热效应
DOI:
10.1038/s41467-022-28229-4
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发表时间:
2022-02-01
影响因子:
16.6
通讯作者:
Sun Y
中科院分区:
文献类型:
--
作者:
Lin J;Tong P;Zhang K;Tao K;Lu W;Wang X;Zhang X;Song W;Sun Y
Emerging caloric cooling technology provides a green alternative to conventional vapor-compression technology which brings about serious environmental problems. However, the reported caloric materials are much inferior to their traditional counterparts in cooling capability. Here we report the barocaloric (BC) effect associated with the liquid-solid-transition (L-S-T) in n-alkanes. A low-pressure of ~50 MPa reversibly triggers an entropy change of ~700 J kg−1 K−1, comparable to those of the commercial refrigerants in vapor-based compression systems. The Raman study and theoretical calculations reveal that applying pressure to the liquid state suppresses the twisting and random thermal motions of molecular chains, resulting in a lower configurational entropy. When the pressure is strong enough to drive the L-S-T, the configurational entropy will be fully suppressed and induce the colossal BC effect. This work could open a new avenue for exploring the colossal BC effect by evoking L-S-T materials. Barocaloric effect, previously reported in solid-solid phase transition materials, offers a green alternative to current cooling technology. Here the authors report colossal BCE in n-alkanes associated with liquid–solid transition.
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影响因子:
29.4
作者:
Aznar, Araceli;Lloveras, Pol;Moya, Xavier
通讯作者:
Moya, Xavier
影响因子:
16.6
作者:
Lloveras, P.;Aznar, A.;Tamarit, J. -Ll.
通讯作者:
Tamarit, J. -Ll.
影响因子:
15
作者:
MIZUSHIMA, SI;SIMANOUTI, T
通讯作者:
SIMANOUTI, T
影响因子:
4.4
作者:
Alfe, D.;Cazorla, C.;Gillan, M. J.
通讯作者:
Gillan, M. J.
影响因子:
41.2
作者:
Manosa, Lluis;Gonzalez-Alonso, David;Acet, Mehmet
通讯作者:
Acet, Mehmet