2022
DOI: 10.1021/acsanm.2c02448
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Unzipping Multiwalled Carbon Nanotubes under Vortex Fluidic Continuous Flow

Abstract: Conventional batch processing in terms of unzipping multiwalled carbon nanotubes (MWCNTs) suffers from discontinuity, safety and environmental issues, reproducibility, and limited scalability. We have established a continuous-flow, scalable, and safe process for unzipping MWCNTs, achieving a yield of 75% under flow conditions, without the need for any auxiliary reagents. This involves using a mild oxidant, aqueous hydrogen peroxide, and harnessing the mechanical energy in a vortex fluidic device (VFD) while op… Show more

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Cited by 10 publications
(6 citation statements)
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“…Graphene is synthesized via two main synthetic routes. Top-down approaches include mechanical and chemical exfoliation, , unzipping of carbon nanotubes, and chemical synthesis, , which are typically used to synthesize smaller graphene lattices (nm up to cm length). For bottom-up approaches, CVD and epitaxial growth are preferred to synthesize larger graphene lattices (up to several cm in length).…”
Section: Carbon Nanomaterials Synthesis and Characterizationmentioning
confidence: 99%
“…Graphene is synthesized via two main synthetic routes. Top-down approaches include mechanical and chemical exfoliation, , unzipping of carbon nanotubes, and chemical synthesis, , which are typically used to synthesize smaller graphene lattices (nm up to cm length). For bottom-up approaches, CVD and epitaxial growth are preferred to synthesize larger graphene lattices (up to several cm in length).…”
Section: Carbon Nanomaterials Synthesis and Characterizationmentioning
confidence: 99%
“…In this context, a composite of graphene oxide shrouding self-assembled fullerene C 70 has recently been reported. [36] The precise slicing of carbon nanotubes to obtain a narrow length distribution with minimized defects except at the tube ends, holds tremendous potential for various applications, such as in solar cell technologies, sensors, [37,38] electronic devices, and biomedical sciences. [39] Several methods have been reported for producing short carbon nanotubes using different physical, [40] electrical, or chemical strategies.…”
Section: Top-down Nanomaterials Transformationmentioning
confidence: 99%
“…In this context, a composite of graphene oxide shrouding self‐assembled fullerene C 70 has recently been reported. [ 36 ]…”
Section: Top‐down Nanomaterials Transformationmentioning
confidence: 99%
“…Innovative reactors can be used for the synthesis and manipulation of nanomaterials. Presenting such a concept, Alharbi et al from Flinders and Griffith Universities demonstrated a continuous flow reactor for unwrapping multi-walled carbon nanotubes using vortex flows …”
mentioning
confidence: 99%
“…demonstrated a continuous flow reactor for unwrapping multiwalled carbon nanotubes using vortex flows. 13 Shielding against electromagnetic fields over various frequency ranges is a budding area that has recently shown great promise for the utilization of nanomaterials. In this regard, Rud et al from the University of South Australia investigated X-ray spectroscopy to reveal the doping of poly (3,4-ethylenedioxythiophene).…”
mentioning
confidence: 99%