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High-Capacitance Mechanism for Ti 3 C 2 T x MXene by in Situ Electrochemical Raman Spectroscopy Investigation
University of Science and Technology of China · Chinese Academy of Sciences · +1 more institution
Abstract
MXenes represent an emerging family of conductive two-dimensional materials. Their representative, Ti3C2Tx, has been recognized as an outstanding member in the field of electrochemical energy storage. However, an in-depth understanding of fundamental processes responsible for the superior capacitance of Ti3C2Tx MXene in acidic electrolytes is lacking. Here, to understand the mechanism of capacitance in Ti3C2Tx MXene, we studied electrochemically the charge/discharge processes of Ti3C2Tx electrodes in sulfate ion-containing aqueous electrolytes with three different cations, coupled with in situ Raman spectroscopy. It is demonstrated that hydronium in the H2SO4 electrolyte bonds with the terminal O in the…
Citation impact
- FWCI
- 22.91
- Percentile
- 100%
- References
- 27
Authors
6- MHMinmin Hu
University of Science and Technology of China, Chinese Academy of Sciences
- ZLZhaojin Li
Chinese Academy of Sciences, University of Chinese Academy of Sciences
- THTao Hu
Chinese Academy of Sciences, University of Chinese Academy of Sciences
- SZShihao Zhu
Chinese Academy of Sciences, University of Chinese Academy of Sciences
- CZChao Zhang
Chinese Academy of Sciences
Topics & keywords
- Pseudocapacitance
- Electrolyte
- MXenes
- Supercapacitor
- Capacitance
- Hydronium
- Electrochemistry
- Raman spectroscopy
- Affordable and clean energy