Elucidation of the Charging Mechanisms and the Coupled Structural–Mechanical Behavior of Ti&lt;sub&gt;3&lt;/sub&gt;C&lt;sub&gt;2&lt;/sub&gt;T&lt;sub&gt;x&lt;/sub&gt; (MXenes) Electrodes by In Situ Techniques

Bergman, Gil; Ballas, Elad; Gao, Qiang; Nimkar, Amey; Gavriel, Bar; Levi, Mikhael D.; Sharon, Daniel; Malchik, Fyodor; Wang, Xuehang

doi:10.1002/aenm.202203154

Elucidation of the Charging Mechanisms and the Coupled Structural–Mechanical Behavior of Ti₃C₂T_x (MXenes) Electrodes by In Situ Techniques

Title

Elucidation of the Charging Mechanisms and the Coupled Structural–Mechanical Behavior of Ti₃C₂T_x (MXenes) Electrodes by In Situ Techniques

Author

Bergman, Gil (Bar-Ilan University)
Ballas, Elad (Bar-Ilan University)
Gao, Qiang (Oak Ridge National Laboratory)
Nimkar, Amey (Bar-Ilan University)
Gavriel, Bar (Bar-Ilan University)
Levi, Mikhael D. (Bar-Ilan University)
Sharon, Daniel (The Hebrew University of Jerusalem)
Malchik, Fyodor (al-Farabi Kazakh National University, Almaty)
Wang, Xuehang (TU Delft RST/Storage of Electrochemical Energy)

Date

2023

Abstract

The discovery of the Ti₃C₂T_x compounds (MXenes) a decade ago opened new research directions and valuable opportunities for high-rate energy storage applications. The unique ability of the MXenes to host various mono- and multivalent cations and their high stability in different electrolyte environments including aqueous, organic, and ionic liquid solutions, promoted the rapid development of advanced MXene-based electrodes for a large variety of applications. Unlike the vast majority of typical intercalation compounds, the electrochemical performance of MXene electrodes is strongly influenced by the presence of co-inserted solvent molecules, which cannot be detected by conventional current/potential electrochemical measurements. Furthermore, the electrochemical insertion of ions into MXene interspaces results in strong coupling with the intercalation-induced structural, dimensional, and viscoelastic changes in the polarized MXene electrodes. To shed light on the charging mechanisms of MXene systems and their associated phenomena, the use of a large variety of real-time monitoring techniques has been proposed in recent years. This review summarizes the most essential findings related to the charging mechanism of Ti₃C₂T_x electrodes and their potential induced structural and mechanical phenomena obtained by in situ investigations.

Subject

in situ techniques
MXenes
pseudo-capacitors
super-capacitors
Ti C T

To reference this document use:

http://resolver.tudelft.nl/uuid:7a5ae775-e1e7-421d-9528-3785f2983af0

DOI

https://doi.org/10.1002/aenm.202203154

ISSN

1614-6832

Source

Advanced Energy Materials, 13 (8)

Part of collection

Institutional Repository