4.8 Article

Tailoring carbon nanotubes quickly into graphene nanoribbons along axis-direction via dynamic magnetic flux template

Journal

CARBON
Volume 208, Issue -, Pages 338-344

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2023.03.060

Keywords

Dynamic magnetic flux template; Multiwalled carbon nanotubes; Multilayered graphene nanoribbons; Longitudinal etching

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The current method of preparing graphene nanoribbons by etching carbon nanotubes relies on catalytic reaction of Fe, Co, and Ni nanoparticles. However, etching along the CNT axis cannot be guaranteed. In this study, Ti3AlC2 is decomposed to liquid aluminum in a dynamic magnetic flux template to catalyze the growth of multiwalled carbon nanotubes. Successively, the obtained MWCNTs are etched in-situ by rutile TiO2 particles to generate multilayered graphene nanoribbons. This work has paved a new way for creating MLGNRs by tailoring MWCNTs along the axis direction using a dynamic magnetic flux template.
So far, the method of top-down preparing graphene nanoribbons by etching of carbon nanotubes (CNTs) mainly relies on the catalytic reaction of Fe, Co, and Ni nanoparticles. However, etching cannot be guaranteed along the CNT axis only. In this study, Ti3AlC2 is decomposed into liquid aluminum in the dynamic magnetic flux template to catalyze the growth of multiwalled carbon nanotubes (MWCNTs). Successively, the obtained MWCNTs are etched in-situ by rutile TiO2 particles to generate multilayered graphene nanoribbons (MLGNRs). Thus-obtained nanoribbons will create zigzag edges full of short-range order segment, demonstrating a spin glass state. This work has paved a new way for a top-down approach to create MLGNRs by tailoring MWCNTs along axis direction only using dynamic magnetic flux template.

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