Capacitive deionization concept based on suspension electrodes without ion exchange membranes

A new type of capacitive deionization (CDI) system, based on capacitive suspension electrodes (CSEs), was developed for the purpose of desalting brackish and seawater through the use of flowable carbon suspensions. CSEs derived from activated carbon and acetylene black demonstrated a specific capaci...

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Veröffentlicht in:Electrochemistry communications Jg. 43; S. 18 - 21
Hauptverfasser: Hatzell, Kelsey B., Iwama, Etsuro, Ferris, Anais, Daffos, Barbara, Urita, Koki, Tzedakis, Théodore, Chauvet, Fabien, Taberna, Pierre-Louis, Gogotsi, Yury, Simon, Patrice
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Lausanne Elsevier B.V 01.06.2014
Amsterdam Elsevier
New York, NY
Schlagworte:
Applied sciences
Capacitive deionization
Capacitive suspension electrodes
Chemical and Process Engineering
Chemical engineering
Chemical Sciences
Drinking water and swimming-pool water. Desalination
Electrochemical flow capacitor
Engineering Sciences
Exact sciences and technology
Flowable electrodes
Materials
Pollution
Water desalination
Water treatment and pollution
Capacitive deionization
Electrochemical flow capacitor
Capacitive suspension electrodes
Water desalination
Flowable electrodes
Water treatment
Porous electrode
Desalination
Brackish water
Carbon
Seawater
ISSN:1388-2481, 1873-1902
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Zusammenfassung:A new type of capacitive deionization (CDI) system, based on capacitive suspension electrodes (CSEs), was developed for the purpose of desalting brackish and seawater through the use of flowable carbon suspensions. CSEs derived from activated carbon and acetylene black demonstrated a specific capacitance of 92Fg−1 in a static mode in a 0.6M NaCl solution. The novel system introduced here is a proof of concept that capacitive suspension electrodes can be envisioned to desalt water without the aid of ion exchange membranes (IEMs). [Display omitted] •Capacitive deionization (CDI) with capacitive suspension electrodes is shown.•Potentiometric titrations of cathode suspension demonstrate chloride adsorption.•Spherical carbon particles demonstrate greater adsorption capacity in 0.6M NaCl.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2014.03.003