Please use this identifier to cite or link to this item: doi:10.22028/D291-32336
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Title: Charge-transfer materials for electrochemical water desalination, ion separation and the recovery of elements
Author(s): Srimuk, Pattarachai
Su, Xiao
Yoon, Jeyong
Aurbach, Doron
Presser, Volker
Language: English
Title: Nature reviews
Volume: 5
Issue: 7
Startpage: 517
Endpage: 538
Publisher/Platform: Nature Publishing Group
Year of Publication: 2020
Publikation type: Journal Article
Abstract: Reversible electrochemical processes are a promising technology for energy-efficient water treatment. Electrochemical desalination is based on the compensation of electric charge by ionic species, through which the ions are immobilized and, thereby, removed from a feed-water stream flowing through a desalination cell. For decades, electrochemical desalination has focused on the use of carbon electrodes, but their salt-removal ability is limited by the mechanism of ion electrosorption at low molar concentrations and low charge-storage capacity. Recently, charge-transfer materials, often found in batteries, have demonstrated much larger charge-storage capacities and energy-efficient desalination at both low and high molar strengths. In this Review, we assess electrochemical-desalination mechanisms and materials, including ion electrosorption and charge-transfer processes, namely, ion binding with redox-active polymers, ion insertion, conversion reactions and redox-active electrolytes. Furthermore, we discuss performance metrics and cell architectures, which we decouple from the nature of the electrode material and the underlying mechanism to show the versatility of cell-design concepts. These charge-transfer processes enable a wealth of environmental applications, ranging from potable-water generation and industrial-water remediation to lithium recovery and heavy-metal-ion removal.
DOI of the first publication: 10.1038/s41578-020-0193-1
URL of the first publication: https://www.nature.com/articles/s41578-020-0193-1
Link to this record: hdl:20.500.11880/29734
http://dx.doi.org/10.22028/D291-32336
ISSN: 2058-8437
Date of registration: 24-Sep-2020
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Volker Presser
Collections:UniBib – Die Universitätsbibliographie

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