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Issue 43, 2017
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Formation of MoO3 and WO3 nanoscrolls from MoS2 and WS2 with atmospheric air plasma

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Abstract

Nanostructured transition metal oxides (TMOs) have intriguing electrochemical and physical properties that make them useful in a variety of electrochemical applications. Here, we report the synthesis of MoO3 and WO3 nanoscrolls from atomically thin layers of two-dimensional (2D) MoS2 and WS2 with atmospheric air plasma treatment. These structures with rolled layers have an increased surface-to-volume ratio and are promising for electrochemical applications. The morphology of the nanoscrolls is characterized by atomic force microscopy (AFM), while X-ray photoelectron spectroscopy (XPS) measurements confirm the formation of MoO3 from MoS2. Control experiments with a plasma generated from a mixture of N2/O2/H2O gases MoS2 suggest that the rolling mechanism is due to a combination of factors including oxide formation, stresses due to bonding changes, defects in the initial 2D material, and interplanar forces.

Graphical abstract: Formation of MoO3 and WO3 nanoscrolls from MoS2 and WS2 with atmospheric air plasma

  • This article is part of the themed collection: 2D Materials
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Supplementary files

Article information


Submitted
27 Jun 2017
Accepted
23 Aug 2017
First published
23 Aug 2017

J. Mater. Chem. C, 2017,5, 11301-11309
Article type
Paper

Formation of MoO3 and WO3 nanoscrolls from MoS2 and WS2 with atmospheric air plasma

X. S. Chu, D. O. Li, A. A. Green and Q. H. Wang, J. Mater. Chem. C, 2017, 5, 11301 DOI: 10.1039/C7TC02867A

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