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doi:10.22028/D291-32336
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: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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