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Diameter-Modulated Multi-Walled Carbon Nanotubes Without Bamboo-Like Partitions: Growth, Structure and Deformation Behaviors

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Periodically diameter-modulated stack-type-multi-walled carbon nanotubes are grown from Fe–Ga catalyst nanoparticles using palmitic acid as a carbon source. A model for their formation mechanism is proposed: stick-slip motion of a catalyst nanoparticle in the growing nanotube results in periodic changes of diameter and wall thickness, and formation of inner partitions is suppressed when the degree of supersaturation is low. In addition, behaviors of nanotubes in Joule heating, bending, and under a tensile load were observed in-situ by scanning electron microscopy using micro-manipurators.
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Keywords: Carbon Nanotube; Diameter Modulation; Electron Microscopy; Nanoarchitectonics

Document Type: Research Article

Affiliations: 1: Department of Engineering, Graduate School of Engineering, Kochi University of Technology, Kami, Kochi, 782-8502, Japan 2: School of Environmental Science and Engineering, Kochi University of Technology, Kami, Kochi, 782-8502, Japan

Publication date: May 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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