Please use this identifier to cite or link to this item: doi:10.22028/D291-35979
Volltext verfügbar? / Dokumentlieferung
Title: Time‐Dependent Cation Selectivity of Titanium Carbide MXene in Aqueous Solution
Author(s): Wang, Lei
Torkamanzadeh, Mohammad
Majed, Ahmad
Zhang, Yuan
Wang, Qingsong
Breitung, Ben
Feng, Guang
Naguib, Michael
Presser, Volker
Language: English
Title: Advanced sustainable systems
Volume: 6
Issue: 3
Publisher/Platform: Wiley
Year of Publication: 2022
Publikation type: Journal Article
Abstract: Electrochemical ion separation is a promising technology to recover valuable ionic species from water. Pseudocapacitive materials, especially 2D materials, are up-and-coming electrodes for electrochemical ion separation. For implementation, it is essential to understand the interplay of the intrinsic preference of a specific ion (by charge/size), kinetic ion preference (by mobility), and crystal structure changes. Ti3C2Tz MXene is chosen here to investigate its selective behavior toward alkali and alkaline earth cations. Utilizing an online inductively coupled plasma system, it is found that Ti3C2Tz shows a time-dependent selectivity feature. In the early stage of charging (up to about 50 min), K+ is preferred, while ultimately Ca2+ and Mg2+ uptake dominate; this unique phenomenon is related to dehydration energy barriers and the ion exchange effect between divalent and monovalent cations. Given the wide variety of MXenes, this work opens the door to a new avenue where selective ion-separation with MXene can be further engineered and optimized.
DOI of the first publication: 10.1002/adsu.202100383
URL of the first publication: https://onlinelibrary.wiley.com/doi/10.1002/adsu.202100383
Link to this record: hdl:20.500.11880/32791
http://dx.doi.org/10.22028/D291-35979
ISSN: 2366-7486
Date of registration: 12-Apr-2022
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Volker Presser
Collections:Die Universitätsbibliographie

Files for this record:
There are no files associated with this item.


Items in SciDok are protected by copyright, with all rights reserved, unless otherwise indicated.