Please use this identifier to cite or link to this item: doi:10.22028/D291-30746
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Title: High-performance ion removal via zinc–air desalination
Author(s): Srimuk, Pattarachai
Wang, Lei
Budak, Öznil
Presser, Volker
Language: English
Title: Electrochemistry communications
Volume: 115
Startpage: 1
Endpage: 6
Publisher/Platform: Elsevier
Year of Publication: 2020
Publikation type: Journal Article
Abstract: Electrochemical processes enable a new generation of energy-efficient desalination technologies. While ion electrosorption via capacitive deionization is only suitable for brackish water with low molar strength, the use of Faradaic materials capable of reversible ion intercalation or conversion reactions allows energy-efficient removal of ions from seawater. However, the limited charge transfer/storage capacity of Faradaic materials indicates an upper limit for their desalination applications. Therefore, a new electrochemical concept must be explored to exceed the current state-of-the-art results and to push the desalination capacity beyond 100–200 mgNaCl/gelectrode. In this proof-of-concept work, we introduce the new concept of using metal–air battery technology for desalination. We do so by presenting performance data for zinc–air desalination (ZAD) in 600 mM NaCl. The ZAD cell provides a desalination capacity of 0.9–1.0 mgNaCl/cm2 (normalized to the membrane area; corresponding to 1300 mgNaCl/gZn) with a charge efficiency of 70% when charging/discharging the cell at 1 mA/cm2. The energy consumption of ZAD is 68–92 kJ/mol.
DOI of the first publication: 10.1016/j.elecom.2020.106713
URL of the first publication: https://www.sciencedirect.com/science/article/pii/S1388248120300643
Link to this record: hdl:20.500.11880/29050
http://dx.doi.org/10.22028/D291-30746
ISSN: 1388-2481
Date of registration: 24-Apr-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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