Augmented surface terminations on few-layer MXene (Ti3C2Tx) with superior electrochemical behavior for energy storage applications.
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| Title: | Augmented surface terminations on few-layer MXene (Ti |
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| Authors: | Bhaviripudi, Vijayabhaskara Rao1 (AUTHOR), Pani, Jitesh2 (AUTHOR), Pabba, Durga Prasad3 (AUTHOR), Zambrano, Dario F.1 (AUTHOR), Udayabhaskar, R.4 (AUTHOR), Rosenkranz, Andreas1 (AUTHOR), Moncada, Daniel5 (AUTHOR), Espinoza-González, Rodrigo1 (AUTHOR) roespino@ing.uchile.cl, Borkar, Hitesh2 (AUTHOR) bhitesh@nitw.ac.in, Aepuru, Radhamanohar6 (AUTHOR) venkata.aepuru@uchile.cl |
| Source: | Journal of Materials Science: Materials in Electronics. Jun2024, Vol. 35 Issue 16, p1-11. 11p. |
| Subjects: | Energy storage, Supercapacitors, Supercapacitor performance, Transition metal carbides, Supercapacitor electrodes, Exfoliation (Materials science), Capacitors |
| Abstract: | MXenes, two-dimensional-layered transition metal carbides/nitrides, have emerged as promising candidates as electrode materials for supercapacitors. Especially, the unique layered structure of Ti3C2Tx has active redox sites and can avail ionic transportation to achieve high specific capacitance with charge storage capacity. In this contribution, a simple preparation method for few-layered Ti3C2Tx has been developed by chemical etching and exfoliation by freeze drying to study their structural and morphological properties. The electrochemical behavior of the few-layered Ti3C2Tx electrode were performed on the Ni-foil as a current collector. The pronounced –OH and –F surface terminations in few-layered Ti3C2Tx enhanced its supercapacitor performance reaching a specific capacitance 342.83 F/g at a current density of 1 A/g. A symmetric supercapacitor compact device has been fabricated and tested the charging and discharging performance by realizing a laboratory prototype capacitor through a resistor–capacitor (RC) circuit. Consequently, the exfoliated few-layered Ti3C2Tx demonstrated an enhanced electrochemical behavior thus making it excellent candidates for electrode materials in energy storage devices. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | MXenes, two-dimensional-layered transition metal carbides/nitrides, have emerged as promising candidates as electrode materials for supercapacitors. Especially, the unique layered structure of Ti3C2Tx has active redox sites and can avail ionic transportation to achieve high specific capacitance with charge storage capacity. In this contribution, a simple preparation method for few-layered Ti3C2Tx has been developed by chemical etching and exfoliation by freeze drying to study their structural and morphological properties. The electrochemical behavior of the few-layered Ti3C2Tx electrode were performed on the Ni-foil as a current collector. The pronounced –OH and –F surface terminations in few-layered Ti3C2Tx enhanced its supercapacitor performance reaching a specific capacitance 342.83 F/g at a current density of 1 A/g. A symmetric supercapacitor compact device has been fabricated and tested the charging and discharging performance by realizing a laboratory prototype capacitor through a resistor–capacitor (RC) circuit. Consequently, the exfoliated few-layered Ti3C2Tx demonstrated an enhanced electrochemical behavior thus making it excellent candidates for electrode materials in energy storage devices. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09574522 |
| DOI: | 10.1007/s10854-024-12760-9 |
