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Atomically Resolved Structural and Chemical Investigation of Single MXene Sheets
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- Karlsson, Linda (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten,Electron Microscopy of Materials
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- Birch, Jens (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Halim, Joseph (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten,Department of Materials Science & Engineering, Drexel University, Philadelphia, Pennsylvania, United States
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- (creator_code:org_t)
- 2015-07-27
- 2015
- English.
- In: Nano letters (Print). - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 15:8, s. 4955-4960
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The properties of two-dimensional (2D) materials depend strongly on the chemical and electrochemical activity of their surfaces. MXene, one of the most recent additions to 2D materials, shows great promise as an energy storage material. In the present investigation, the chemical and structural properties of individual Ti3C2 MXene sheets with associated surface groups are investigated at the atomic level by aberration corrected STEM-EELS. The MXene sheets are shown to exhibit a nonuniform coverage of O-based surface groups which locally affect the chemistry. Additionally, native point defects which are proposed to affect the local surface chemistry, such as oxidized titanium adatoms (TiOx), are identified and found to be mobile.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- MXene
- Ti3C2Tx
- Aberration corrected STEM
- Surface Chemistry
- Surface
Publication and Content Type
- ref (subject category)
- art (subject category)
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