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Giant barocaloric effects in sodium hexafluorophosphate and hexafluoroarsenate

文献类型：期刊论文

作者Zhang, Zhao1,2; Hattori, Takanori3; Song, Ruiqi1; Yu, Dehong4; Mole, Richard4; Chen, Jie5; He, Lunhua5,6,7; Zhang, Zhidong1,2; Li, Bing1,2
刊名JOURNAL OF APPLIED PHYSICS
出版日期2024-07-21
卷号136期号:3页码:8
ISSN号0021-8979
DOI10.1063/5.0211085
通讯作者Li, Bing(bingli@imr.ac.cn)
英文摘要Solid-state refrigeration using barocaloric materials is environmentally friendly and highly efficient, making it a subject of global interest over the past decade. Here, we report giant barocaloric effects in sodium hexafluorophosphate (NaPF6) and sodium hexafluoroarsenate (NaAsF6) that both undergo a cubic-to-rhombohedral phase transition near room temperature. We have determined that the low-temperature phase structure of NaPF6 is a rhombohedral structure with space group R3 by neutron powder diffraction. There are three Raman active vibration modes in NaPF6 and NaAsF6, i.e., F-2g, E-g, and A(1g). The phase transition temperature varies with pressure at a rate of dT(t)/dP = 250 and 310 K GPa(-1 )for NaPF6 and NaAsF6. The pressure-induced entropy changes of NaPF6 and NaAsF6 are determined to be around 45.2 and 35.6 J kg(-1) K-1, respectively. The saturation driving pressure is about 40 MPa. The pressure-dependent neutron powder diffraction suggests that the barocaloric effects are related to the pressure-induced cubic-to-rhombohedral phase transitions. (c) 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND) license
资助项目Key Research Program of Frontier Science, Chinese Academy of Sciences10.13039/501100018527[2022YFE0109900] ; Key Research Program of Frontier Science, Chinese Academy of Sciences10.13039/501100018527[2021YFB3501201] ; Ministry of Science and Technology of China[ZDBS-LY-JSC002] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[174321KYSB20200008] ; International Partner Program of Chinese Academy of Sciences ; IMR Innovation Fund[RC210435] ; Young Innovation Talent Program of Shenyang[11934007] ; Young Innovation Talent Program of Shenyang[11804346] ; Young Innovation Talent Program of Shenyang[P1820033000002] ; Young Innovation Talent Program of Shenyang[2018I0011] ; National Natural Science Foundation of China (NNSFC)
WOS研究方向Physics
语种英语
WOS记录号WOS:001281659100001
出版者AIP Publishing
资助机构Key Research Program of Frontier Science, Chinese Academy of Sciences10.13039/501100018527 ; Ministry of Science and Technology of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; International Partner Program of Chinese Academy of Sciences ; IMR Innovation Fund ; Young Innovation Talent Program of Shenyang ; National Natural Science Foundation of China (NNSFC)
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Bing
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Japan Atom Energy Agcy, J PARC Ctr, Ibaraki 3191195, Japan
4.Australian Nucl Sci & Technol Org, Locked Bag 2001, Kirrawee Dc, NSW 2232, Australia
5.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China
6.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
7.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Zhao,Hattori, Takanori,Song, Ruiqi,et al. Giant barocaloric effects in sodium hexafluorophosphate and hexafluoroarsenate[J]. JOURNAL OF APPLIED PHYSICS,2024,136(3):8.
APA Zhang, Zhao.,Hattori, Takanori.,Song, Ruiqi.,Yu, Dehong.,Mole, Richard.,...&Li, Bing.(2024).Giant barocaloric effects in sodium hexafluorophosphate and hexafluoroarsenate.JOURNAL OF APPLIED PHYSICS,136(3),8.
MLA Zhang, Zhao,et al."Giant barocaloric effects in sodium hexafluorophosphate and hexafluoroarsenate".JOURNAL OF APPLIED PHYSICS 136.3(2024):8.

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来源：金属研究所

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