Ag-catalysed cutting of multi-walled carbon nanotubes

La Torre, A.; Rance, G. A.; Miners, S. A.; Lucas, C. Herreros; Smith, E. F.; Fay, M. W.; Zoberbier, T.; Giménez-López, M. C.; Kaiser, U.; Brown, P. D.; Khlobystov, A. N.

Abstract

In this work, the cutting of carbon nanotubes is investigated using silver nanoparticles deposited on arc discharge multi-walled carbon nanotubes. The composite is subsequently heated in air to fabricate shortened multi-walled nanotubes. Complementary transmission electron microscopy and spectroscopy techniques shed light on the cutting mechanism. The nanotube cutting is catalysed by the fundamental mechanism based on the coordination of the silver atoms to the π-bonds of carbon nanotubes. As a result of the metal coordination, the strength of the carbon-carbon bond is reduced, promoting the oxidation of carbon at lower temperature when heated in air, or lowering the activation energy required for the removal of carbon atoms by electron beam irradiation, assuring in both cases the cutting of the nanotubes.

Citation

La Torre, A., Rance, G. A., Miners, S. A., Lucas, C. H., Smith, E. F., Fay, M. W., Zoberbier, T., Giménez-López, M. C., Kaiser, U., Brown, P. D., & Khlobystov, A. N. (2016). Ag-catalysed cutting of multi-walled carbon nanotubes. Nanotechnology, 27(17), 175604. https://doi.org/10.1088/0957-4484/27/17/175604

• Journal Article Type: Article
• Acceptance Date: Feb 29, 2016
• Online Publication Date: Mar 18, 2016
• Publication Date: Mar 18, 2016
• Deposit Date: Mar 20, 2025
• Journal: Nanotechnology
• Print ISSN: 0957-4484
• Electronic ISSN: 1361-6528
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 27
• Issue: 17
• Pages: 175604
• DOI: https://doi.org/10.1088/0957-4484/27/17/175604
• Keywords: carbon, nanoparticles, silver, electron beam.
• Public URL: https://nottingham-repository.worktribe.com/output/3192138
• Publisher URL: https://iopscience.iop.org/article/10.1088/0957-4484/27/17/175604
• Additional Information: Journal title: Nanotechnology; Article type: paper; Article title: Ag-catalysed cutting of multi-walled carbon nanotubes; Copyright information: © 2016 IOP Publishing Ltd; Date received: 2015-10-31; Date accepted: 2016-02-29; Online publication date: 2016-03-18