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DOI | 10.1038/s41467-018-05250-0 |
Crystalline polymeric carbon dioxide stable at megabar pressures | |
Dziubek, Kamil F.1; Ende, Martin2; Scelta, Demetrio1,3; Bini, Roberto1,3,4; Mezouar, Mohamed5; Garbarino, Gaston5; Miletich, Ronald2 | |
2018-08-08 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; Austria; France |
英文摘要 | Carbon dioxide is a widespread simple molecule in the Universe. In spite of its simplicity it has a very complex phase diagram, forming both amorphous and crystalline extended phases above 40 GPa. The stability range and nature of these phases are still debated, especially in view of their possible role within the deep carbon cycle. Here, we report static synchrotron Xray diffraction and Raman high-pressure experiments in the megabar range providing evidence for the stability of the polymeric phase V at pressure-temperature conditions relevant to the Earth's lowermost mantle. The equation of state has been extended to 120 GPa and, contrary to earlier experimental findings, neither dissociation into diamond and e-oxygen nor ionization was observed. Severe deviatoric stress and lattice deformation along with preferred orientation are removed on progressive annealing, thus suggesting CO2-V as the stable structure also above one megabar. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440981500002 |
WOS关键词 | DEEP LOWER-MANTLE ; X-RAY ; PHASE V ; CO2 ; TEMPERATURE ; OXYGEN ; MAGNESITE ; TRANSFORMATIONS ; STABILITY ; HYDROGEN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203873 |
专题 | 资源环境科学 |
作者单位 | 1.LENS, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Florence, Italy; 2.Univ Wien, Inst Mineral & Kristallog, Althanstr 14, A-1090 Vienna, Austria; 3.Natl Res Council Italy, Inst Chem OrganoMetall Cpds, ICCOM CNR, Via Madonna Piano 10, I-50019 Florence, Italy; 4.Univ Firenze, Dipartimento Chim Ugo Schiff, Via Lastruccia 3, I-50019 Florence, Italy; 5.European Synchrotron Radiat Facil, 71 Ave Martyrs,CS 40220, F-38043 Grenoble 9, France |
推荐引用方式 GB/T 7714 | Dziubek, Kamil F.,Ende, Martin,Scelta, Demetrio,et al. Crystalline polymeric carbon dioxide stable at megabar pressures[J]. NATURE COMMUNICATIONS,2018,9. |
APA | Dziubek, Kamil F..,Ende, Martin.,Scelta, Demetrio.,Bini, Roberto.,Mezouar, Mohamed.,...&Miletich, Ronald.(2018).Crystalline polymeric carbon dioxide stable at megabar pressures.NATURE COMMUNICATIONS,9. |
MLA | Dziubek, Kamil F.,et al."Crystalline polymeric carbon dioxide stable at megabar pressures".NATURE COMMUNICATIONS 9(2018). |
条目包含的文件 | 条目无相关文件。 |
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