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Giant barocaloric effects in formamidinium iodide

文献类型：期刊论文

作者Yu, Chenyang1,2; Huang, Jianqi2; Qi, Ji1,2; Liu, Peng1,2; Li, Da1,2; Yang, Teng1,2; Zhang, Zhidong1,2; Li, Bing1,2
刊名APL MATERIALS
出版日期2022
卷号10期号:1页码:7
ISSN号2166-532X
DOI10.1063/5.0073381
通讯作者Yang, Teng(yangteng@imr.ac.cn) ; Li, Bing(bingli@imr.ac.cn)
英文摘要Barocaloric effect is the thermal response of materials to the external pressures, which provides a promising alternative to the current vapor-compression refrigeration. The effect has been widely observed in a variety of materials. Here, we report giant barocaloric effects in formamidinium iodide [CH(NH2)(2)I] that was known as the main precursor to synthesize the hybrid perovskite photovoltaic materials. The compound exhibits two successive phase transitions at 345 and 386 K, where isothermal entropy changes of about 50 J kg(-1) K-1 are found under applied pressures below 60 MPa. As for the low-temperature transition with the thermal hysteresis of about 6 K, we obtain a refrigerant capacity of 179 J kg(-1) under a pressure change of 100 MPa and an estimated adiabatic temperature change of about 24 K. Temperature- and pressure-dependent Raman scattering measurements indicate that the phase transitions and the barocaloric effects are attributed to influences on hydrogen bonds. (C) 2022 Author(s).
资助项目National Natural Science Foundation of China[11804346] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[ZDBS-LY-JSC002] ; International Partner Program of Chinese Academy of Sciences[174321KYSB20200008]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者AIP Publishing
WOS记录号WOS:000746504400004
资助机构National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; International Partner Program of Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/173548]  
专题金属研究所_中国科学院金属研究所
通讯作者Yang, Teng; Li, Bing
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Chenyang,Huang, Jianqi,Qi, Ji,et al. Giant barocaloric effects in formamidinium iodide[J]. APL MATERIALS,2022,10(1):7.
APA Yu, Chenyang.,Huang, Jianqi.,Qi, Ji.,Liu, Peng.,Li, Da.,...&Li, Bing.(2022).Giant barocaloric effects in formamidinium iodide.APL MATERIALS,10(1),7.
MLA Yu, Chenyang,et al."Giant barocaloric effects in formamidinium iodide".APL MATERIALS 10.1(2022):7.

入库方式： OAI收割

来源：金属研究所

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