Effect of conductive additives on the transport properties of porous flow-through electrodes with insulative particles and their optimization for Faradaic deionization

Deionization devices that use intercalation reactions to reversibly store and release cations from solution show promise for energy-efficient desalination of alternative water resources. Intercalation materials often display low electronic conductivity that results in increased energy consumption du...

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Bibliographic Details
Published in:Water research (Oxford) 2019-11, Vol.165, p.114995-114995, Article 114995
Main Authors: Reale, Erik R., Shrivastava, Aniruddh, Smith, Kyle C.
Format: Article
Language:English
Subjects:
Faradaic deionization
Intercalation
Materials selection
Prussian blue analogue
Transport properties
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Summary:Deionization devices that use intercalation reactions to reversibly store and release cations from solution show promise for energy-efficient desalination of alternative water resources. Intercalation materials often display low electronic conductivity that results in increased energy consumption during desalination. Accordingly, we performed experiments to quantify the impact of the size and mass fraction of conductive additives and insulative active particles on the effective electronic conductivity, ionic conductivity, and hydraulic permeability of porous electrodes. We find that Ketjen black conductive additives with nodules
ISSN:0043-1354
1879-2448
DOI:10.1016/j.watres.2019.114995