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Two-Dimensional Vanadium Carbide (MXene) as Positive Electrode for Sodium-Ion Capacitors
Abstract
Ion capacitors store energy through intercalation of cations into an electrode at a faster rate than in batteries and within a larger potential window. These devices reach a higher energy density compared to electrochemical double layer capacitor. Li-ion capacitors are already produced commercially, but the development of Na-ion capacitors is hindered by lack of materials that would allow fast intercalation of Na-ions. Here we investigated the electrochemical behavior of 2D vanadium carbide, V2C, from the MXene family. We investigated the mechanism of Na intercalation by XRD and achieved capacitance of ∼100 F/g at 0.2 mV/s. We assembled a full cell with hard carbon as negative electrode, a known anode material for Na ion batteries, and achieved capacity of 50 mAh/g with a maximum cell voltage of 3.5 V.
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Armand, M., & Tarascon, J.-M. (2008) · Nature · doi:10.1038/451652a · Cited by 19,612
Cited by
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Self-citationTransition Metal Carbides and Nitrides in Energy Storage and Conversion
Zhong, Y., Xia, X., Shi, F., Zhan, J., Tu, J., & Fan, H. J. (2016) · Advanced Science · doi:10.1002/advs.201500286 · Cited by 1,361
2D MXenes: A New Family of Promising Catalysts for the Hydrogen Evolution Reaction
Gao, G., O’Mullane, A. P., & Du, A. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b02754 · Cited by 1,153
Boota, M., Anasori, B., Voigt, C., Zhao, M., Barsoum, M. W., & Gogotsi, Y. (2016) · Advanced Materials · doi:10.1002/adma.201504705 · Cited by 1,114
Self-citationPhotoluminescent Ti3C2 MXene Quantum Dots for Multicolor Cellular Imaging
Xue, Q., Zhang, H., Zhu, M., Pei, Z., Li, H., Wang, Z., Huang, Y., Huang, Y., Deng, Q., Zhou, J., et al. (2017) · Advanced Materials · doi:10.1002/adma.201604847 · Cited by 980
Metadata
- Authors
- Dall’Agnese, Y., Taberna, P.-L., Gogotsi, Y., & Simon, P.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-06-05
- Volume
- 6
- Issue
- 12
- Pages
- 2305-2309
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2194435614
- Cited by
- 463
- References
- 1
- FWCI
- 17.59
- Type
- journal article
- Language
- en
- Open access
- closed
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- Dall’Agnese, Y., Taberna, P.-L., Gogotsi, Y., & Simon, P. (2015). Two-Dimensional Vanadium Carbide (MXene) as Positive Electrode for Sodium-Ion Capacitors. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/acs.jpclett.5b00868
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