A colossal barocaloric effect induced by the creation of a high-pressure phase. Issue 3 (13th January 2023)

• Record Type: Journal Article
• Authors: Zhang, Zhao; Jiang, Xiaoming; Hattori, Takanori; Xu, Xiong; Li, Min; Yu, Chenyang; Zhang, Zhe; Yu, Dehong; Mole, Richard; Yano, Shin-ichiro; Chen, Jie; He, Lunhua; Wang, Chin-Wei; Wang, Hui; Li, Bing; Zhang, Zhidong
• Is Part Of: Materials horizons. Volume 10:Issue 3(2023)
• Page Start: 977
• Page End: 982
• Publication Date: 2023-01-13
• Subjects: Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d2mh00905f
• Languages: English
• ISSNs: 2051-6347

Abstract

Abstract : The creation of a high-pressure rhombohedral phase leads to a colossal barocaloric effect in KPF6 . Abstract : As a promising environment-friendly alternative to current vapor-compression refrigeration, solid-state refrigeration based on the barocaloric effect has been attracting worldwide attention. Generally, both phases in which a barocaloric effect occurs are present at ambient pressure. Here, instead, we demonstrate that KPF6 exhibits a colossal barocaloric effect due to the creation of a high-pressure rhombohedral phase. The phase diagram is constructed based on pressure-dependent calorimetric, Raman scattering, and neutron diffraction measurements. The present study is expected to provide an alternative routine to colossal barocaloric effects through the creation of a high-pressure phase.