A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt
文献类型：期刊论文
| 作者 | Yang, Ling Xu1,2; Zhang, Hai Liang1,2; Wang, Ying1,2; Liu, Hui Jun1; Zeng, Chao Liu1 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2019-02-15 |
| 卷号 | 45期号:3页码:3791-3796 |
| 关键词 | Niobium carbide Nanoparticle Molten salt NbCl5 Disproportionation reaction |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2018.11.047 |
| 通讯作者 | Liu, Hui Jun(liuhj@imr.ac.cn) |
| 英文摘要 | Nanosized niobium carbide (NbC) powder was successfully synthesized by disproportionation reaction of Nb(IV) species in NaCl-KCl molten salt at 800-900 degrees C for 0.5-5 h by using a mixture of Nb, NbCl5, and acetylene black as raw materials. Effects of molar ratio of NbCl5/Nb, temperature, and reaction time on NbC preparation were also investigated. The composition and microstructure of the product were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and high resolution transmission electron microscopy (HRTEM). Homogenous NbC powder with a particle size of similar to 50 nm is in-situ synthesized on template of acetylene black by disproportionation reaction of Nb(IV) species in NaCl-KCl molten salt. In addition, NbC formation is dramatically influenced by molar ratio of NbCl5/Nb and temperature, a higher temperature and higher molar ratio of NbCl5/Nb are more preferable for nanosized NbC powder formation. |
| 资助项目 | National Natural Science Foundation of China[51501205] ; National Natural Science Foundation of China[51671204] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000456225900109 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/131179]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Hui Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ling Xu,Zhang, Hai Liang,Wang, Ying,et al. A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt[J]. CERAMICS INTERNATIONAL,2019,45(3):3791-3796. |
| APA | Yang, Ling Xu,Zhang, Hai Liang,Wang, Ying,Liu, Hui Jun,&Zeng, Chao Liu.(2019).A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt.CERAMICS INTERNATIONAL,45(3),3791-3796. |
| MLA | Yang, Ling Xu,et al."A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt".CERAMICS INTERNATIONAL 45.3(2019):3791-3796. |
入库方式： OAI收割
来源：金属研究所
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