Insights into the capping and structure of MoS2 nanotubes as revealed by aberration-corrected STEM

Francis Leonard Deepak; Alvaro Mayoral; Andrew J. Steveson; Sergio Mejía-Rosales; Douglas A. Blom; Miguel José-Yacamán

doi:10.1039/C0NR00484G

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Insights into the capping and structure of MoS₂nanotubes as revealed by aberration-corrected STEM†

Francis Leonard Deepak,^ab Alvaro Mayoral,^a Andrew J. Steveson,^a Sergio Mejía-Rosales,^ac Douglas A. Blom^d and Miguel José-Yacamán*^a

Author affiliations

* Corresponding authors

^a Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
E-mail: miguel.yacaman@utsa.edu
Fax: (+210) 458-4919
Tel: (+210) 458-5451

^b International Iberian Nanotechnology Laboratory, Avda Mestre Jose Veiga, Braga 4715, Portugal

^c Center for Innovation and Research in Engineering and Technology and Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, NL 66450, México

^d EM Center, University of South Carolina, 715 Sumter St, Coker Life Sciences 001, Columbia, SC 29208, USA

Abstract

Aberration-corrected electron microscopy (STEM-HAADF) has been used for the first time to understand the capping, nature and structure of the MoS₂ nanotubes. The MoS₂ nanotubes that have been obtained have various unusual faceted caps presumably arising from the presence of topological defects. A detailed study of the capping of the nanotubes, along with identification that the MoS₂ nanotubes are of the zigzag type have been carried out using both experimental and simulated STEM images. The presence of 3R-rhombohedral stacking of the MoS₂ nanotubes has been identified.

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Supplementary files

Synthesis and structure of MoO ₃ nanobelts and MoS ₂ nanotubes PDF (1501K)

Article information

DOI: https://doi.org/10.1039/C0NR00484G
Article type: Paper
Submitted: 08 Jul 2010
Accepted: 20 Jul 2010
First published: 18 Aug 2010

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Nanoscale, 2010,2, 2286-2293

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Insights into the capping and structure of MoS₂ nanotubes as revealed by aberration-corrected STEM

F. L. Deepak, A. Mayoral, A. J. Steveson, S. Mejía-Rosales, D. A. Blom and M. José-Yacamán, Nanoscale, 2010, 2, 2286 DOI: 10.1039/C0NR00484G

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