Thin Film Mechano-Energy Induced Slicing of Carbon Nanotubes under Flow

We have developed a versatile thin film microfluidic method, which is high in green chemistry metrics, for controlled disentangling and slicing both single-walled CNTs and multiwalled CNTs

Thaar M. D. Alharbi; Qin Li; Colin L. Raston

2021

Scholarcy highlights

  • Controlling the length of CNTs is important for their applications
  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • We have developed a versatile thin film microfluidic method, which is high in green chemistry metrics, for controlled disentangling and slicing both single-walled CNTs and multiwalled CNTs
  • The method uses the mechanoenergy generated in a biphasic immiscible mixture of water and o-xylene in a titled vortex fluidic device operating at ambient temperature, without the need for using surfactants or other axillary reagents and without the need for applying external fields
  • This simple method can achieve a yield of 93% under continuous flow conditions
  • SEM images of SWCNTs processed in the VFD in a 1:1 mixture of water and p-xylene, m-xylene or mesitylene, Figure S1; SEM images of SWCNTs processed in the VFD at 8k rpm, dispersed in water only and o-xylene only, Figure S2; TEM images of MWCNTs and SWCNTs before processing in the VFD, Figure S3; AFM images - height profile of sliced SWCNTs and sliced MWCNTs, Figure S4; Radial breathing mode of as-received and sliced SWCNTs, Figure S5
  • Such files may be downloaded by article for research use

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