Stability of amorphous neodymium carbonate and morphology control of neodymium carbonate in non-hydrothermal synthesis
文献类型：期刊论文
| 作者 | Cui, Zhenjie1,2,3; Guo, Jianwei1,2,3; Wang, Dong1,2; Cao, Jianwei1,2; Wang, Zhi1,2,3 |
| 刊名 | JOURNAL OF CRYSTAL GROWTH
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 579页码:8 |
| 关键词 | Crystal morphology Nucleation Growth from solutions Industrial crystallization Rare earth compounds |
| ISSN号 | 0022-0248 |
| DOI | 10.1016/j.jcrysgro.2021.126460 |
| 英文摘要 | Rare earth carbonates have shown great application value and potential in the process of preparing rare-earth materials. In this work, a non-hydrothermal method of uniform feeding was used to determine the nucleation kinetics of neodymium carbonate. On this basis, the crystallization process and evolution of amorphous phase were studied. For the first time, it is determined the macroscopic crystallization rate of neodymium carbonate follows a zero-order reaction. The primary nucleation activation energy is 36.98 kJ/mol, indicating that the formation of Nd2(CO3)3 is controlled by a mixture of diffusion and chemical reaction. In the initial stage of precipitation, spherical amorphous neodymium carbonate with diameter of 20 nm was formed, with the molecular formula being Nd-2(CO3)(3).1.87H(2)O, and subsequently crystallized into tengerite-(Nd) [Nd-2(CO3)(3).2.5H(2)O] and lanthanite-(Nd) [Nd-2(CO3)(3).8H(2)O]. The stability of the amorphous neodymium carbonate in anhydrous environment and aqueous solution was evaluated, and ion potential was used to judge the stability trend of the rare earth carbonates. During the transition from amorphous phase to crystal, it is found temperature and supersaturation play an important role in the morphology of the final product. The results provide a reference for evaluating the crystallization process and developing large-scale industrial production methods. |
| WOS关键词 | CRYSTALLIZATION ; OXIDE ; PRECURSORS ; NANOCRYSTALS ; NUCLEATION ; PRINCIPLES ; PARTICLES ; ELECTRODE ; NANORODS ; INSIGHTS |
| 资助项目 | National Key R&D Program of China[2020YFC1909004] ; National Natural Science Foundation of China[51974286] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3-3] ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences[E055A002] |
| WOS研究方向 | Crystallography ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000793704200003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53374]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Dong; Wang, Zhi |
| 作者单位 | 1.Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Res, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Cui, Zhenjie,Guo, Jianwei,Wang, Dong,et al. Stability of amorphous neodymium carbonate and morphology control of neodymium carbonate in non-hydrothermal synthesis [J]. JOURNAL OF CRYSTAL GROWTH,2022,579:8. |
| APA |
Cui, Zhenjie,Guo, Jianwei,Wang, Dong,Cao, Jianwei,&Wang, Zhi.(2022). Stability of amorphous neodymium carbonate and morphology control of neodymium carbonate in non-hydrothermal synthesis .JOURNAL OF CRYSTAL GROWTH,579,8. |
| MLA |
Cui, Zhenjie,et al." Stability of amorphous neodymium carbonate and morphology control of neodymium carbonate in non-hydrothermal synthesis ".JOURNAL OF CRYSTAL GROWTH 579(2022):8. |
入库方式： OAI收割
来源：过程工程研究所
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