Study on the mechanism of deoxidization and purification for Li2BeF4 molten salt via graphite nanoparticles
文献类型：期刊论文
| 作者 | Xie, MY; Li, L; Ding, YP; Zhang, GX |
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2017 |
| 卷号 | 487页码:317-322 |
| 关键词 | Mechanism Li2bef4 Molten Salt Deoxidization And Purification Graphite Nanoparticles Vacuum Degassing |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2017.01.055 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Graphite nanoparticles originated from high purity graphite crucible were used for deoxidization and purification of Li2BeF4 molten salt containing a bit of (NH4)(2)BeF4 under high temperature vacuum condition. And the mechanism of deoxidization and purification via graphite nanoparticles was put forward based on analysis of sample characterization and chemical reaction Gibbs free energy calculation. The morphology, particle size, chemical composition and crystal structure of graphite nanoparticles in Li2BeF4 molten salt were characterized by High Resolution Transmission Electron Microscopy (HRTEM, SAED and EDS). Phase analysis, total oxygen content, full elemental and anion concentration for as prepared Li2BeF4 products were studied by X-Ray Diffraction (XRD), LECO nitrogen-oxygen analyzer, Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and Ion Chromatography (IC), respectively. The results of sample characterization showed that graphite nanoparticles in Li2BeF4 molten salt were the poly-crystal round sheet shape with an average diameter of <100 nm. The concentration of total oxygen, sulfur and nickel in as-prepared Li2BeF4 molten salt after treatment were 548 ppm, <0.6 ppm and <0.4 ppm, respectively. Experiment and calculation all showed that SO42- and NO3- could react with carbon at 700 degrees C. And vacuum degassing play an excellent role in deoxidization and purification for Li2BeF4 molten salt via graphite nanoparticles. (C) 2017 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000399506900037 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27457]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Xie, MY,Li, L,Ding, YP,et al. Study on the mechanism of deoxidization and purification for Li2BeF4 molten salt via graphite nanoparticles[J]. JOURNAL OF NUCLEAR MATERIALS,2017,487:317-322. |
| APA | Xie, MY,Li, L,Ding, YP,&Zhang, GX.(2017).Study on the mechanism of deoxidization and purification for Li2BeF4 molten salt via graphite nanoparticles.JOURNAL OF NUCLEAR MATERIALS,487,317-322. |
| MLA | Xie, MY,et al."Study on the mechanism of deoxidization and purification for Li2BeF4 molten salt via graphite nanoparticles".JOURNAL OF NUCLEAR MATERIALS 487(2017):317-322. |
入库方式： OAI收割
来源：上海应用物理研究所
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