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Updated: May 31, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
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Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy

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Cutting single-walled carbon nanotubes.

Kirk J Ziegler1, Zhenning Gu, Jonah Shaver

  • 1Department of Chemistry, Center for Nanoscale Science and Technology, Rice University, Houston, TX 77005, USA.

Nanotechnology
|July 6, 2011
PubMed
Summary
This summary is machine-generated.

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Controlled cutting of single-walled carbon nanotubes (SWNTs) is achieved via a two-step process. Fluorination followed by etching yields short SWNTs with high carbon yield.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Controlling the length of single-walled carbon nanotubes (SWNTs) is crucial for tailoring their properties.
  • Existing methods for cutting SWNTs often lack precise control over length distribution.

Purpose of the Study:

  • To develop a controlled two-step process for cutting SWNTs to achieve monodisperse lengths.
  • To investigate the effectiveness of fluorination and subsequent etching for nanotube fragmentation.

Main Methods:

  • A two-step cutting strategy involving initial carbon-carbon bond breakage and subsequent etching at damage sites.
  • Utilizing room-temperature piranha and ammonium persulfate solutions for controlled etching.
  • Introducing carbon-carbon bond breakage via fluorination to approximately C(2)F.

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Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
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Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
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Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

Related Experiment Videos

Last Updated: May 31, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
08:10

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy

Published on: February 5, 2017

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
09:23

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
09:12

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

Main Results:

  • The two-step process effectively cuts SWNTs, yielding an average length of approximately 100 nm.
  • Fluorination followed by piranha etching demonstrated high efficiency in cutting SWNTs.
  • Achieved high carbon yields ranging from 70-80% with minimal introduction of new sidewall damage.

Conclusions:

  • The developed two-step process offers a controlled method for producing short, monodisperse SWNTs.
  • Fluorination combined with oxidative etching provides an effective route for precise nanotube length reduction.
  • This method holds promise for producing high-quality, short SWNTs for various applications.