Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage

doi:10.1016/j.desal.2019.114080

	Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage
	Chang, Junjun 1,3; Duan, Feng 1; Cao, Hongbin 1,2; Tang, Kexin 1; Su, Chunlei 1,3; Li, Yuping 1
刊名	DESALINATION
	2019-10-15
卷号	468 页码:9
关键词	Flow-electrode Capacitive deionization Intercalation material Copper hexacyanoferrate Salt removal efficiency
ISSN号	0011-9164
DOI	10.1016/j.desal.2019.114080
英文摘要	Flow-electrode capacitive deionization (FCDI) provides the opportunity for continuous desalination operation of high concentration saline water. In this study, we firstly report the application of a battery material (a Prussian blue analogue, copper hexacyanoferrate, CuHCF) as flowable electrode in FCDI system, where it is coupled with activated carbon (AC). Its desalination performance under different voltage is evaluated when dealing with 10 g L-1 NaCI solution. Results show that the salt removal rate and salt removal efficiency of the designed FCDI is enhanced as increasing in applied voltage from 1.2 to 2.8 V. Moreover, benefiting from the high capacity of CuHCF material, the novel FCDI based on CuHCF-AC pair shows superiority over conventional FCDI with AC-AC pair when operates at high voltage over 2.0 V (e.g. salt removal rate of 0.12 vs. 0.11 mg cm(-2) min(-1), salt removal efficiency of similar to 91 vs. 84% and current efficiency of similar to 96 vs. 95% at 2.8 V), even though the pH of the concentrated water changes more significantly. The results indicate that FCDI based on CuHCF-AC electrode pair is effective in dealing with high saline water at high voltage. Other sodium ion intercalation material may also be applied in FCDI.
资助项目	National Natural Science Foundation of China (NSFC)[21377130] ; National Natural Science Foundation of China (NSFC)[51425405]
WOS关键词	ANION-EXCHANGE MEMBRANE ; DESALINATION PERFORMANCE ; WATER DESALINATION ; SEAWATER DESALINATION ; ENERGY-CONSUMPTION ; FARADAIC REACTIONS ; CONSTANT VOLTAGE ; CARBON SPHERES ; PROTON LEAKAGE ; POROUS CARBONS
WOS研究方向	Engineering ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000484877500025
资助机构	National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30832]
专题	中国科学院过程工程研究所
通讯作者	Li, Yuping
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Interdisciplinary Innovat Team, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chang, Junjun,Duan, Feng,Cao, Hongbin,et al. Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage[J]. DESALINATION,2019,468:9.
APA	Chang, Junjun,Duan, Feng,Cao, Hongbin,Tang, Kexin,Su, Chunlei,&Li, Yuping.(2019).Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage.DESALINATION,468,9.
MLA	Chang, Junjun,et al."Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage".DESALINATION 468(2019):9.