Simultaneous optimization of entropy changes and thermal hysteresis barocaloric compound of Mn3Pt
文献类型：期刊论文
| 作者 | Zhao, Xueting1,2; Zhang, Kun1,2; Liu, Peng1,2; Guo, Qing1,2; Wang, Haoyu1,2; Feng, Yuanwen1,2; Li, Bing1,2 |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2025 |
| 卷号 | 176页码:6 |
| 关键词 | Barocaloric Doping First-order phase transition Entropy change |
| ISSN号 | 0966-9795 |
| DOI | 10.1016/j.intermet.2024.108558 |
| 通讯作者 | Zhang, Kun(kzhang@imr.ac.cn) ; Li, Bing(bingli@imr.ac.cn) |
| 英文摘要 | Mn3Pt metal compounds are promising candidates for barocaloric cooling applications for their high thermal conductivity and pressure sensitivity. However, they are constrained by low entropy change and large thermal hysteresis. This study investigates the effects of doping with carbon (C) and nitrogen (N) and substituting with germanium (Ge) on the structure, as well as the thermal and barocaloric effects of Mn3Pt. We found that N and C doping significantly reduces the phase transition temperature and improves pressure sensitivity, although at the cost of reduced entropy change. In contrast, Ge substitution increases the phase transition temperature and enhances the entropy change by 123 %, with Mn 3 Pt 0.8 Ge 0.2 achieving a maximum entropy change of 22.7 J kg- 1 K- 1 . Additionally, defects were introduced to reduce the phase transition nucleation driving force, thereby lowering the thermal hysteresis to 4 K. This work provides a strategy for the simultaneous optimization of entropy change and thermal hysteresis, advancing the development of efficient and tunable barocaloric materials. |
| 资助项目 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences[100500003] ; CSNS Con-sortium on High-performance Materials of Chinese Academy of Sci-ences[ZDBS-LY-JSC002] ; Young Innovation Talent Program of Shenyang[RC210432] ; Ministry of Science and Technology of China ; Na-tional Natural Science Foundation of China[2021YFB3501201] ; Na-tional Natural Science Foundation of China[2022YFE0109900] ; Na-tional Natural Science Foundation of China[2020YFA0406002] ; International Partner Program of Chinese Academy of Sciences[52425107] ; International Partner Program of Chinese Academy of Sciences[52201029] ; International Partner Program of Chinese Academy of Sciences[52001101] ; [174321KYSB20200008] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001355082300001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; CSNS Con-sortium on High-performance Materials of Chinese Academy of Sci-ences ; Young Innovation Talent Program of Shenyang ; Ministry of Science and Technology of China ; Na-tional Natural Science Foundation of China ; International Partner Program of Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Kun; 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 |
| 推荐引用方式 GB/T 7714 | Zhao, Xueting,Zhang, Kun,Liu, Peng,et al. Simultaneous optimization of entropy changes and thermal hysteresis barocaloric compound of Mn3Pt[J]. INTERMETALLICS,2025,176:6. |
| APA | Zhao, Xueting.,Zhang, Kun.,Liu, Peng.,Guo, Qing.,Wang, Haoyu.,...&Li, Bing.(2025).Simultaneous optimization of entropy changes and thermal hysteresis barocaloric compound of Mn3Pt.INTERMETALLICS,176,6. |
| MLA | Zhao, Xueting,et al."Simultaneous optimization of entropy changes and thermal hysteresis barocaloric compound of Mn3Pt".INTERMETALLICS 176(2025):6. |
入库方式： OAI收割
来源：金属研究所
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