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DOI | 10.1073/pnas.1615767114 |
Hydrogen isotope fractionation in methane plasma | |
Robert, Francois1; Derenne, Sylvie2; Lombardi, Guillaume3; Hassouni, Khaled3; Michau, Armelle3; Reinhardt, Peter4; Duhamel, Remi1; Gonzalez, Adriana1; Biron, Kasia1,2 | |
2017-01-31 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:5页码:870-874 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | The hydrogen isotope ratio (D/H) is commonly used to reconstruct the chemical processes at the origin of water and organic compounds in the early solar system. On the one hand, the large enrichments in deuterium of the insoluble organic matter (IOM) isolated from the carbonaceous meteorites are interpreted as a heritage of the interstellar medium or resulting from ion-molecule reactions taking place in the diffuse part of the protosolar nebula. On the other hand, the molecular structure of this IOM suggests that organic radicals have played a central role in a gas-phase organosynthesis. So as to reproduce this type of chemistry between organic radicals, experiments based on a microwave plasma of CH4 have been performed. They yielded a black organic residue in which ion microprobe analyses revealed hydrogen isotopic anomalies at a sub-micrometric spatial resolution. They likely reflect differences in the D/H ratios between the various CHx radicals whose polymerization is at the origin of the IOM. These isotopic heterogeneities, usually referred to as hot and cold spots, are commensurable with those observed in meteorite IOM. As a consequence, the appearance of organic radicals in the ionized regions of the disk surrounding the Sun during its formation may have triggered the formation of organic compounds. |
英文关键词 | hydrogen isotopes meteorites cosmochemistry methane plasma insoluble organic matter |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393196300047 |
WOS关键词 | INSOLUBLE ORGANIC-MATTER ; PRIMITIVE METEORITES ; DIAMOND DEPOSITION ; DEUTERIUM ; NITROGEN ; CARBON ; ENRICHMENT ; PARTICLES ; CHEMISTRY ; OXYGEN |
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/204831 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Museum Natl Hist Nat, Inst Mineral Phys Mat & Cosmochim, UMR 7590, F-75231 Paris 05, France; 2.Univ Paris 06, Milieux Environm Transferts & Interact Hydrosyst, UMR CNRS 7619, F-75252 Paris 05, France; 3.Univ Paris 13, CNRS UPR 3407, Lab Sci Proc & Mat, Sorbonne Paris Cite, F-93430 Villetaneuse, France; 4.Univ Paris 06, Lab Chim Theor, F-75252 Paris, France |
推荐引用方式 GB/T 7714 | Robert, Francois,Derenne, Sylvie,Lombardi, Guillaume,et al. Hydrogen isotope fractionation in methane plasma[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(5):870-874. |
APA | Robert, Francois.,Derenne, Sylvie.,Lombardi, Guillaume.,Hassouni, Khaled.,Michau, Armelle.,...&Biron, Kasia.(2017).Hydrogen isotope fractionation in methane plasma.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(5),870-874. |
MLA | Robert, Francois,et al."Hydrogen isotope fractionation in methane plasma".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.5(2017):870-874. |
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