Synthesis of ternary compound in H-S-Se system at high pressures*
文献类型：期刊论文
| 作者 | Zhang, Xiao1,2 |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 30 |
| 关键词 | hydride high pressure Raman spectroscopy |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/abf7aa |
| 通讯作者 | Zhang, Xiao(xiaozhang@issp.ac.cn) |
| 英文摘要 | The chemical reaction products of elemental sulfur (S), selenium (Se), and molecular hydrogen (H-2) at high pressures and room temperature are probed by Raman spectroscopy. Two known compounds H2S and H2Se can be synthesized after laser heating at pressures lower than 1 GPa. Under further compression at room temperature, an H2S-H2Se and an H2S-H2Se-H-2 van der Waals compounds are synthesized at 4 GPa and 6 GPa, respectively. The later is of guest-host structure and can be identified as (H2S)( x )(H2Se)((2-x))H-2. It can be maintained up to 37 GPa at least, and the stability of its H2Se molecules is extended: the H-Se stretching mode can be detected at least to 36 GPa but disappears at 22 GPa in (H2Se)(2)H-2. The pressure dependence of S-H and Se-H stretching modes of this ternary compound is in line with that of (H2S)(2)H-2 and (H2Se)(2)H-2, respectively. However, its hydrogen subsystem only shows the relevance to (H2S)(2)H-2, indicating that this ternary compound can be viewed as H2Se-replaced partial H2S of (H2S)(2)H-2. |
| WOS关键词 | HYDROGEN ; SUPERCONDUCTIVITY ; PHASE ; RAMAN ; LANTHANUM ; HYDRIDE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000732439200001 |
| 出版者 | IOP Publishing Ltd |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/126900]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Xiao |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiao. Synthesis of ternary compound in H-S-Se system at high pressures*[J]. CHINESE PHYSICS B,2021,30. |
| APA | Zhang, Xiao.(2021).Synthesis of ternary compound in H-S-Se system at high pressures*.CHINESE PHYSICS B,30. |
| MLA | Zhang, Xiao."Synthesis of ternary compound in H-S-Se system at high pressures*".CHINESE PHYSICS B 30(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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