Jump to main content
Jump to site search

Issue 24, 2016
Previous Article Next Article

Structural and chemical analysis of gadolinium halides encapsulated within WS2 nanotubes

Author affiliations

Abstract

The hollow cavities of nanotubes serve as templates for the growth of size- and shape-confined functional nanostructures, giving rise to novel materials and properties. In this work, considering their potential application as MRI contrast agents, gadolinium halides are encapsulated within the hollow cavities of WS2 nanotubes by capillary filling to obtain GdX3@WS2 nanotubes (where X = Cl, Br or I and @ means encapsulated in). Aberration corrected scanning/transmission electron microscopy (S/TEM) and spectroscopy is employed to understand the morphology and composition of the GdI3@WS2 nanotubes. The three dimensional morphology is studied with STEM tomography but understanding the compositional information is non-trivial due to the presence of multiple high atomic number elements. Therefore, energy dispersive X-ray spectroscopy (EDS) tomography was employed revealing the three dimensional chemical composition. Molecular dynamics simulations of the filling procedure shed light into the mechanics behind the formation of the confined gadolinium halide crystals. The quasi-1D system employed here serves as an example of a TEM-based chemical nanotomography method that could be extended to other materials, including beam-sensitive soft materials.

Graphical abstract: Structural and chemical analysis of gadolinium halides encapsulated within WS2 nanotubes

Back to tab navigation

Supplementary files

Publication details

The article was received on 01 Apr 2016, accepted on 18 May 2016 and first published on 18 May 2016


Article type: Paper
DOI: 10.1039/C6NR02710E
Citation: Nanoscale, 2016,8, 12170-12181
  •   Request permissions

    Structural and chemical analysis of gadolinium halides encapsulated within WS2 nanotubes

    E. A. Anumol, A. N. Enyashin, N. M. Batra, P. M. F. J. Costa and F. L. Deepak, Nanoscale, 2016, 8, 12170
    DOI: 10.1039/C6NR02710E

Search articles by author

Spotlight

Advertisements