中国物理B ›› 2026, Vol. 35 ›› Issue (7): 70501-070501.doi: 10.1088/1674-1056/ae53b2

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Barocaloric effect and materials: A review

Zi-Qi Guan(关子奇)1,2, Chang-Jiang Bao(包长江)1, Ji-Wei Yao(姚继伟)1, Nan Zhou(周楠)1, Yuan-Wen Feng(冯远文)1,2, Hao-Yu Wang(王皓宇)1,2, Kun Zhang(张琨)1,2, and Bing Li(李昺)1,2,†   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    2 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
  • 收稿日期:2025-12-10 修回日期:2026-03-06 接受日期:2026-03-18 发布日期:2026-07-02
  • 通讯作者: Bing Li E-mail:bingli@imr.ac.cn
  • 基金资助:
    This work is financially supported by the National Natural Science Foundation of China (Grant Nos. 52425107, 52401253, and 52571021), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. ZDBS-LYJSC002), the Innovation Fund of the Institute of Metal Research, Chinese Academy of Sciences (Grant No. 2024-PY05), the Natural Science Foundation of Liaoning Province (Grant No. 2024-BSBA-41), and the Postdoctoral Fellowship Program of the China Postdoctoral Science Foundation (Grant No. GZC20232741).

Barocaloric effect and materials: A review

Zi-Qi Guan(关子奇)1,2, Chang-Jiang Bao(包长江)1, Ji-Wei Yao(姚继伟)1, Nan Zhou(周楠)1, Yuan-Wen Feng(冯远文)1,2, Hao-Yu Wang(王皓宇)1,2, Kun Zhang(张琨)1,2, and Bing Li(李昺)1,2,†   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    2 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
  • Received:2025-12-10 Revised:2026-03-06 Accepted:2026-03-18 Published:2026-07-02
  • Contact: Bing Li E-mail:bingli@imr.ac.cn
  • Supported by:
    This work is financially supported by the National Natural Science Foundation of China (Grant Nos. 52425107, 52401253, and 52571021), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. ZDBS-LYJSC002), the Innovation Fund of the Institute of Metal Research, Chinese Academy of Sciences (Grant No. 2024-PY05), the Natural Science Foundation of Liaoning Province (Grant No. 2024-BSBA-41), and the Postdoctoral Fellowship Program of the China Postdoctoral Science Foundation (Grant No. GZC20232741).

摘要: As the global energy crisis and environmental issues intensify, the development of efficient and environmentally friendly novel refrigeration technology has become a significant focus in the field of scientific research and engineering. Conventional vapor compression refrigeration utilizes vapor refrigerants with high global warming potentials, which not only consume huge amounts of energy but also adversely affect the environment. In recent years, solid-state refrigeration technology has emerged as a research hotspot because of its controllable refrigerants, high energy efficiency, and environmental friendliness. Among the various refrigeration technologies that yield caloric effects through external-field-induced phase transitions, barocaloric refrigeration technology has been highly anticipated due to its low required driving pressure for refrigerant materials, large entropic change upon phase transition, and potentially high efficiency. On the other hand, many types of barocaloric materials are currently available, including intermetallic compounds, inorganic and organic materials, as well as organic—inorganic hybrid materials. Based on the barocaloric effect mechanism and the fundamental principles of various barocaloric materials, this paper summarizes the latest research in this field. It reviews the origins of the caloric effects of different types of barocaloric materials. The future development directions and application prospects of barocaloric solid-state refrigeration technology and materials are outlined.

关键词: barocaloric effect, phase transition, entropy change, solid-state refrigeration

Abstract: As the global energy crisis and environmental issues intensify, the development of efficient and environmentally friendly novel refrigeration technology has become a significant focus in the field of scientific research and engineering. Conventional vapor compression refrigeration utilizes vapor refrigerants with high global warming potentials, which not only consume huge amounts of energy but also adversely affect the environment. In recent years, solid-state refrigeration technology has emerged as a research hotspot because of its controllable refrigerants, high energy efficiency, and environmental friendliness. Among the various refrigeration technologies that yield caloric effects through external-field-induced phase transitions, barocaloric refrigeration technology has been highly anticipated due to its low required driving pressure for refrigerant materials, large entropic change upon phase transition, and potentially high efficiency. On the other hand, many types of barocaloric materials are currently available, including intermetallic compounds, inorganic and organic materials, as well as organic—inorganic hybrid materials. Based on the barocaloric effect mechanism and the fundamental principles of various barocaloric materials, this paper summarizes the latest research in this field. It reviews the origins of the caloric effects of different types of barocaloric materials. The future development directions and application prospects of barocaloric solid-state refrigeration technology and materials are outlined.

Key words: barocaloric effect, phase transition, entropy change, solid-state refrigeration

中图分类号:  (Phase transitions: general studies)

  • 05.70.Fh
65.40.gd (Entropy) 75.30.Sg (Magnetocaloric effect, magnetic cooling) 75.85.+t (Magnetoelectric effects, multiferroics)