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Synthesis of graphene–carbon nanotube hybrid foam and its use as a novel three-dimensional electrode for electrochemical sensing
Abstract
Three-dimensional (3D) graphene–carbon nanotube (CNT) hybrids are synthesized by two-step chemical vapor deposition (CVD) under atmospheric pressure. As revealed by scanning electron microscopy (SEM), the hybrid is a monolithic graphene foam with conformal coverage of a dense CNT mesh. We further demonstrate that the obtained graphene–CNT hybrid foams can be used as novel 3D electrochemical electrodes for sensing applications. Specifically, the 3D graphene–CNT electrodes exhibit a high sensitivity (∼470.7 mA M−1 cm−2) and low detection limit (∼20 nM with S/N ≈ 9.2) for dopamine detection. Modified with horseradish peroxidase and Nafion, the 3D hybrid electrodes are also used to detect H2O2 with a high sensitivity (137.9 mA M−1 cm−2), low detection limit (∼1 μM with S/N ≈ 17.4), and wide linear detection range (10 μM–1 mM).
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Cited by
Georgakilas, V., Perman, J. A., Tucek, J., & Zboril, R. (2015) · Chemical Reviews · doi:10.1021/cr500304f · Cited by 2,147
Metadata
- Authors
- Dong, X., Ma, Y., Zhu, G., Huang, Y., Wang, J., Chan-Park, M. B., Wang, L., Huang, W., & Chen, P.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 22
- Issue
- 33
- Pages
- 17044
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2049128631
- Cited by
- 227
- References
- 0
- FWCI
- 13.43
- Type
- journal article
- Language
- en
- Open access
- closed
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- Dong, X., Ma, Y., Zhu, G., Huang, Y., Wang, J., Chan-Park, M. B., Wang, L., Huang, W., & Chen, P. (2012). Synthesis of graphene–carbon nanotube hybrid foam and its use as a novel three-dimensional electrode for electrochemical sensing. Journal of Materials Chemistry. https://doi.org/10.1039/c2jm33286h
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