A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt

doi:10.1016/j.ceramint.2018.11.047

IMR OpenIR

	A novel and simple method for large-scale synthesis of nanosized NbC powder by disproportionation reaction in molten salt
	Yang, Ling Xu 1,2; Zhang, Hai Liang 1,2; Wang, Ying 1,2; Liu, Hui Jun 1; Zeng, Chao Liu 1
通讯作者	Liu, Hui Jun(liuhj@imr.ac.cn)
	2019-02-15
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	45 期号:3 页码:3791-3796
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.
关键词	Niobium carbide Nanoparticle Molten salt NbCl5 Disproportionation reaction
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ceramint.2018.11.047
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000456225900109
出版者	ELSEVIER SCI LTD
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131180
专题	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.