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Updated: Jun 10, 2025
Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
Published on: February 12, 2020
Electrochemically Intercalated Ti3C2 MXene Bulk for Expanding Interlayer Spacing and Enhancing Supercapacitor
Weixin Wang1, Mingzhu Ma1, Yuting Song1
1Anhui Province Key Laboratory of Intelligent Computing and Applications, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, P. R. China.
Abstract:
Tuning the interlayer spacing of 2D MXenes bulk mainly focuses on hydrothermal intercalation, physiotherapy intercalation, and ion exchange intercalation. Nevertheless, the feasibility of electrochemical intercalation technology for expanding the interlayer spacing of Ti3C2 MXene bulk is not yet clear, and further research is required to advance it. Here, we employed an electrochemical intercalation technology to successfully embed metal cations (K+ and Na+) into the interlayer structure of Ti3C2 MXene bulk, expanding the interlayer spacing from ∼10.50 to ∼13.10 Å by K+ intercalation, which can broaden electron/ion transport channels and enhance supercapacitor performance. Compared to the pristine Ti3C2 MXene bulk, the specific capacitance value increased by a factor of 2.8. Moreover, the intercalated MXene also exhibits excellent rate capability, with an increase from 47.32 to 70.20%. This work opens up a new path for the modification of Ti3C2 MXene bulk.
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