Three-dimensional Nanotube Networks and a New Horizon of Applications

Elías, Ana Laura; Perea-López, Néstor; Rajukumar, Lakshmy Pulickal; McCreary, Amber; López–Urías, Florentino; Terrones, Humberto; Terrones, Mauricio

doi:10.1016/b978-1-4557-7863-8.00017-7

Cited by 7 publications

(4 citation statements)

References 90 publications

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“…As mentioned above, if we only use CNTs as building blocks, it is possible to construct 3D CNT networks . This idea has attracted a great deal of attention following the successful synthesis of single-walled CNTs (SWCNTs). − From an electronics standpoint, serial or parallel circuits composed of CNTs can be important in the fabrication of future carbon-based electronic devices.…”

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confidence: 99%

Building Complex Hybrid Carbon Architectures by Covalent Interconnections: Graphene–Nanotube Hybrids and More

2014

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Graphene is theoretically a robust two-dimensional (2D) sp(2)-hybridized carbon material with high electrical conductivity and optical transparency. However, due to the existence of grain boundaries and defects, experimentally synthesized large-area polycrystalline graphene sheets are easily broken and can exhibit high sheet resistances; thus, they are not suitable as flexible transparent conductors. As described in this issue of ACS Nano, Tour et al. circumvented this problem by proposing and synthesizing a novel hybrid structure that they have named "rebar graphene", which is composed of covalently interconnected carbon nanotubes (CNTs) with graphene sheets. In this particular configuration, CNTs act as "reinforcing bars" that not only improve the mechanical strength of polycrystalline graphene sheets but also bridge different crystalline domains so as to enhance the electrical conductivity. This report seems to be only the tip of the iceberg since it is also possible to construct novel and unprecedented hybrid carbon architectures by establishing covalent interconnections between CNTs with graphene, thus yielding graphene-CNT hybrids, three-dimensional (3D) covalent CNT networks, 3D graphene networks, etc. In this Perspective, we review the progress of these carbon hybrid systems and describe the challenges that need to be overcome in the near future.

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Building Complex Hybrid Carbon Architectures by Covalent Interconnections: Graphene–Nanotube Hybrids and More

2014

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“…It is worth mentioning that most of these materials are environment-friendly and/or are easy to dispose of. The discovery of fullerenes envisage a new horizon in synthesizing CNTs by rolling up graphene sheets into SWNTs and MWNTs that exhibit high stiffness and chirality 169–171 which can be used in electronic devices as electrodes in supercapacitor applications 172 due to their high electrical conductivity and flexibility. To facilitate the flow of electrons in CNTs, the fabrication and functionalization of the CNT networks is required.…”

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confidence: 99%

Progress in supercapacitors: roles of two dimensional nanotubular materials

et al. 2020

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“…Different from uniformly aligned CNT bundles or CNT films, 3-D sponges composed of randomly oriented CNTs have been fabricated to achieve isotropic material properties [4e6]. The 3D CNT sponges with hierarchical structures were observed to exhibit excellent mechanical properties such as controllable viscoelasticity and high electrical conductivity as a result of increased surface area [7,8]. Their multifunctional characteristics have been exploited for a number of applications, such as hydrogen storage, tissue engineering and environmental-friendly reusable sorbent [4,9,10].…”

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confidence: 99%