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Superiority of a novel flow-electrode capacitive deionization (FCDI) based on a battery material at high applied voltage
Chang, Junjun1,2; Duan, Feng1; Cao, Hongbin1,3; Tang, Kexin1; Su, Chunlei1,2; Li, Yuping1
2019-10-15
Source PublicationDESALINATION
ISSN0011-9164
Volume468Pages:9
AbstractFlow-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.
KeywordFlow-electrode Capacitive deionization Intercalation material Copper hexacyanoferrate Salt removal efficiency
DOI10.1016/j.desal.2019.114080
Language英语
WOS KeywordANION-EXCHANGE MEMBRANE ; DESALINATION PERFORMANCE ; WATER DESALINATION ; SEAWATER DESALINATION ; ENERGY-CONSUMPTION ; FARADAIC REACTIONS ; CONSTANT VOLTAGE ; CARBON SPHERES ; PROTON LEAKAGE ; POROUS CARBONS
Funding ProjectNational Natural Science Foundation of China (NSFC)[21377130] ; National Natural Science Foundation of China (NSFC)[51425405]
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
Funding OrganizationNational Natural Science Foundation of China (NSFC)
WOS IDWOS:000484877500025
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30833
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Yuping
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Interdisciplinary Innovat Team, Beijing, Peoples R China
Recommended Citation
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.
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