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|Title:||Synthesis of graphene–carbon nanotube hybrid foam and its use as a novel three-dimensional electrode for electrochemical sensing||Authors:||Dong, Xiaochen
Chan-Park, Mary B.
|Keywords:||DRNTU::Engineering::Chemical engineering||Issue Date:||2012||Source:||Dong, X., Ma, Y., Zhu, G., Huang, Y., Wang, J., Chan-Park, M. B., et al. (2012). Synthesis of graphene–carbon nanotube hybrid foam and its use as a novel three-dimensional electrode for electrochemical sensing. Journal of Materials Chemistry, 22(33), 17044-17048.||Series/Report no.:||Journal of materials chemistry||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).||URI:||https://hdl.handle.net/10356/96249
|DOI:||http://dx.doi.org/10.1039/c2jm33286h||Rights:||© 2012 The Royal Society of Chemistry.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||SCBE Journal Articles|
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