Faradaic Electrodes Open a New Era for Capacitive Deionization
Abstract: Capacitive deionization (CDI) is an emerging desalination technology for effective removal of ionic species from aqueous solutions. Compared to conventional CDI, which is based on carbon electrodes and struggles with high salinity streams due to a limited salt removal capacity by ion electrosorption and excessive co‐ion expulsion, the emerging Faradaic electrodes provide unique opportunities to upgrade the CDI performance, i.e., achieving much higher salt removal capacities and energy‐efficient desalination for high salinity streams, due to the Faradaic reaction for ion capture. This article presents a comprehensive overview on the current developments of Faradaic electrode materials for CDI. Here, the fundamentals of Faradaic electrode‐based CDI are first introduced in detail, including novel CDI cell architectures, key CDI performance metrics, ion capture mechanisms, and the design principles of Faradaic electrode materials. Three main categories of Faradaic electrode materials are summarized and discussed regarding their crystal structure, physicochemical characteristics, and desalination performance. In particular, the ion capture mechanisms in Faradaic electrode materials are highlighted to obtain a better understanding of the CDI process. Moreover, novel tailored applications, including selective ion removal and contaminant removal, are specifically introduced. Finally, the remaining challenges and research directions are also outlined to provide guidelines for future research.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Faradaic Electrodes Open a New Era for Capacitive Deionization ; volume:7 ; number:22 ; year:2020 ; extent:52
Advanced science ; 7, Heft 22 (2020) (gesamt 52)
- Creator
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Li, Qian
Zheng, Yun
Xiao, Dengji
Or, Tyler
Gao, Rui
Li, Zhaoqiang
Feng, Ming
Shui, Lingling
Zhou, Guofu
Wang, Xin
Chen, Zhongwei
- DOI
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10.1002/advs.202002213
- URN
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urn:nbn:de:101:1-2022052707114221978840
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:21 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Li, Qian
- Zheng, Yun
- Xiao, Dengji
- Or, Tyler
- Gao, Rui
- Li, Zhaoqiang
- Feng, Ming
- Shui, Lingling
- Zhou, Guofu
- Wang, Xin
- Chen, Zhongwei
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