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Colossal and reversible barocaloric effect in liquid-solid-transition materials n-alkanes

Author

Listed:
  • Jianchao Lin

    (Chinese Academy of Sciences)

  • Peng Tong

    (Chinese Academy of Sciences)

  • Kai Zhang

    (Chinese Academy of Sciences)

  • Kun Tao

    (Chinese Academy of Sciences)

  • Wenjian Lu

    (Chinese Academy of Sciences)

  • Xianlong Wang

    (Chinese Academy of Sciences)

  • Xuekai Zhang

    (Chinese Academy of Sciences)

  • Wenhai Song

    (Chinese Academy of Sciences)

  • Yuping Sun

    (Chinese Academy of Sciences
    Chinese Academy of Sciences)

Abstract

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.

Suggested Citation

  • Jianchao Lin & Peng Tong & Kai Zhang & Kun Tao & Wenjian Lu & Xianlong Wang & Xuekai Zhang & Wenhai Song & Yuping Sun, 2022. "Colossal and reversible barocaloric effect in liquid-solid-transition materials n-alkanes," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28229-4
    DOI: 10.1038/s41467-022-28229-4
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    Cited by:

    1. Yi-Hong Gao & Dong-Hui Wang & Feng-Xia Hu & Qing-Zhen Huang & You-Ting Song & Shuai-Kang Yuan & Zheng-Ying Tian & Bing-Jie Wang & Zi-Bing Yu & Hou-Bo Zhou & Yue Kan & Yuan Lin & Jing Wang & Yun-liang , 2024. "Low pressure reversibly driving colossal barocaloric effect in two-dimensional vdW alkylammonium halides," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    2. Shin-ichi Ohkoshi & Kosuke Nakagawa & Marie Yoshikiyo & Asuka Namai & Kenta Imoto & Yugo Nagane & Fangda Jia & Olaf Stefanczyk & Hiroko Tokoro & Junhao Wang & Takeshi Sugahara & Kouji Chiba & Kazuhiko, 2023. "Giant adiabatic temperature change and its direct measurement of a barocaloric effect in a charge-transfer solid," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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