In situ redox control and Raman spectroscopic characterisation of solutions below 300 degrees C
文献类型：期刊论文
| 作者 | Chou, I. -M.3 ; Wang, R.1,3; Fang, J.2,3
|
| 刊名 | GEOCHEMICAL PERSPECTIVES LETTERS
 |
| 出版日期 | 2021-12-02 |
| 卷号 | 20页码:19 |
| ISSN号 | 2410-339X |
| DOI | 10.7185/geochemlet.2135 |
| 通讯作者 | Chou, I. -M. |
| 英文摘要 | Redox reactions often occur and significantly affect many geological processes. To simulate redox reactions in low temperature (T < 400 degrees C) hydrothermal experiments, fused silica was used as a hydrogen membrane to impose an externally fixed H-2 pressure (P-H2) on a fused silica capillary capsule (FSCC; 150 mu m inner diameter, 375 mu m outer diameter and similar to 6 mm long) to define the redox state of the sample in the FSCC. At 300 degrees C, it required less than 7 hours to reach osmotic equilibrium. In this study, a constant PH2 was imposed on an FSCC, which originally contained a 0.5 m (mole/kg H2O) SnCl4 + 0.5 m HCl aqueous solution, at 300 degrees C and vapour saturation pressure. In situ Raman spectra of the sample solution collected at 300 degrees C show that the reduction rate of Sn-IV to Sn-II species increased substantially with an increase of 1.1 bar of P-H2. We characterised precipitation and dissolution of cassiterite under various P-T-pH-P-H2 conditions and greatly increased our capabilities for performing rigorous hydrothermal experiments at temperatures below 400 degrees C, in which redox control is difficult to ensure without in situ approaches. |
| WOS关键词 | ELEVATED-TEMPERATURES ; AQUEOUS-SOLUTIONS ; WATER-VAPOR ; PRESSURE ; STABILITY ; FRACTIONATION ; CALIBRATION ; SOLUBILITY ; HYDROGEN ; DEPOSITS |
| 资助项目 | Key Frontier Science Program of CAS[QYZDY-SSW-DQC008] ; National Natural Science Foundation of China[41973055] ; National Natural Science Foundation of China[4213000358] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | EUROPEAN ASSOC GEOCHEMISTRY |
| WOS记录号 | WOS:000727023200001 |
| 资助机构 | Key Frontier Science Program of CAS ; National Natural Science Foundation of China |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/9402]  |
| 专题 | 深海科学研究部_深海极端环境模拟研究实验室 研究生部 |
| 通讯作者 | Chou, I. -M. |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Deep sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chou, I. -M.,Wang, R.,Fang, J.. In situ redox control and Raman spectroscopic characterisation of solutions below 300 degrees C[J]. GEOCHEMICAL PERSPECTIVES LETTERS,2021,20:19. |
| APA | Chou, I. -M.,Wang, R.,&Fang, J..(2021).In situ redox control and Raman spectroscopic characterisation of solutions below 300 degrees C.GEOCHEMICAL PERSPECTIVES LETTERS,20,19. |
| MLA | Chou, I. -M.,et al."In situ redox control and Raman spectroscopic characterisation of solutions below 300 degrees C".GEOCHEMICAL PERSPECTIVES LETTERS 20(2021):19. |
入库方式： OAI收割
来源：深海科学与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。