High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed

doi:10.1016/j.partic.2018.12.005

	High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed
	Fan, Chuanlin 1,2; Xu, Jie 1,2; Yang, Haitao 1,2; Zhu, Qingshan 1,2
刊名	PARTICUOLOGY
	2020-04-01
卷号	49 页码:9-15
关键词	Chlorination procedure High purity VOCl3 FBCVD High purity V2O5 Gaseous hydrolysis Chlorine
ISSN号	1674-2001
DOI	10.1016/j.partic.2018.12.005
英文摘要	Present-day all-vanadium redox flow batteries (VRFBs) generally require high purity vanadium oxide as a raw ingredient. The chlorination procedure presents distinct technical advantages with regard to preparing high purity vanadium pentoxide (V2O5) using vanadium oxytrichloride (VOCl3) as a highly pure intermediate. To efficiently prepare high purity V2O5 from VOCl3, a single-step fluidized bed chemical vapor deposition (FBCVD) method was explored in the present work. Based on thermodynamic analyses, the direct and complete conversion of VOCl3 to V2O5 is difficult, and may result in a small amount of residual Cl in the product. Consequently, the effects of temperature and the H2O/VOCl3 molar ratio on the quantity of residual Cl were assessed. The Cl concentration was found to decrease with increasing temperature or increasing H2O/VOCl3 molar ratios. Additionally, Cl was determined to be present only in the form of Cl-V bonds, while Cl-H and Cl-Cl bonds were not detected in a V2O5 product made at 200 degrees C with a H2O/VOCl3 molar ratio of 18. A Cl concentration of less than 0.05 wt% was obtained under the optimal synthesis conditions, demonstrating that the FBCVD method is a viable means of preparing high purity V2O5 via the gaseous hydrolysis of VOCl3. (C) 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51774262] ; National Natural Science Foundation of China[51504231] ; National Natural Science Foundation of China[51504232] ; National Natural Science Foundation of China[21736010] ; Open Project of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization[CNMR-CUKF1704]
WOS关键词	CHEMICAL-VAPOR-DEPOSITION ; REDOX FLOW BATTERY ; VANADIUM PENTOXIDE ; FILMS ; CHLORINATION ; EXTRACTION ; CATALYST ; PROGRESS ; STORAGE ; GROWTH
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000518869200002
资助机构	National Natural Science Foundation of China ; Open Project of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39812]
专题	中国科学院过程工程研究所
通讯作者	Yang, Haitao; Zhu, Qingshan
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Fan, Chuanlin,Xu, Jie,Yang, Haitao,et al. High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed[J]. PARTICUOLOGY,2020,49:9-15.
APA	Fan, Chuanlin,Xu, Jie,Yang, Haitao,&Zhu, Qingshan.(2020).High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed.PARTICUOLOGY,49,9-15.
MLA	Fan, Chuanlin,et al."High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed".PARTICUOLOGY 49(2020):9-15.