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

Ximo S. Chu, Duo O. Li, Alexander Green, Qing Wang

Research output: Contribution to journalArticle

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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.

Original languageEnglish (US)
Pages (from-to)11301-11309
Number of pages9
JournalJournal of Materials Chemistry C
Volume5
Issue number43
DOIs
StatePublished - 2017

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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