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3-Dimensional Graphene Carbon Nanotube Carpet-Based Microsupercapacitors with High Electrochemical Performance
Abstract
In this research, 3-dimensional (3D) graphene/carbon nanotube carpets (G/CNTCs)-based microsupercapacitors (G/CNTCs-MCs) were fabricated in situ on nickel electrodes. The G/CNTCs-MCs show impedance phase angle of -81.5° at a frequency of 120 Hz, comparable to commercial aluminum electrolytic capacitors (AECs) for alternating current (ac) line filtering applications. In addition, G/CNTCs-MCs deliver a high volumetric energy density of 2.42 mWh/cm(3) in the ionic liquid, more than 2 orders of magnitude higher than that of AECs. The ultrahigh rate capability of 400 V/s enables the microdevices to demonstrate a maximum power density of 115 W/cm(3) in aqueous electrolyte. The high-performance electrochemical properties of G/CNTCs-MCs can provide more compact ac filtering units and discrete power sources in future electronic devices. These elevated electrical features are likely enabled by the seamless nanotube/graphene junctions at the interface of the differing carbon allotropic forms.
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Citations
Cited by
Graphene for batteries, supercapacitors and beyond
El-Kady, M. F., Shao, Y., & Kaner, R. B. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.33 · Cited by 1,262
Peng, L., Peng, X., Liu, B., Wu, C., Xie, Y., & Yu, G. (2013) · Nano Letters · doi:10.1021/nl400600x · Cited by 854
Flexible and Stackable Laser-Induced Graphene Supercapacitors
Peng, Z., Lin, J., Ye, R., Samuel, E. L. G., & Tour, J. M. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/am509065d · Cited by 470
Self-citationThree dimensional N-doped graphene–CNT networks for supercapacitor
You, B., Wang, L., Yao, L., & Yang, J. (2013) · Chemical Communications · doi:10.1039/c3cc41949e · Cited by 373
Ammonia solution strengthened three-dimensional macro-porous graphene aerogel
Han, Z., Tang, Z., Li, P., Yang, G., Zheng, Q., & Yang, J. (2013) · Nanoscale · doi:10.1039/c3nr00971h · Cited by 199
Metadata
- Authors
- Lin, J., Zhang, C., Yan, Z., Zhu, Y., Peng, Z., Hauge, R. H., Natelson, D., & Tour, J. M.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-12-27
- Volume
- 13
- Issue
- 1
- Pages
- 72-78
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2324981427
- Cited by
- 750
- References
- 0
- FWCI
- 17.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lin, J., Zhang, C., Yan, Z., Zhu, Y., Peng, Z., Hauge, R. H., Natelson, D., & Tour, J. M. (2013). 3-Dimensional Graphene Carbon Nanotube Carpet-Based Microsupercapacitors with High Electrochemical Performance. Nano Letters. https://doi.org/10.1021/nl3034976
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