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The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals

2D atomic crystals have been widely explored, usually owing to their numerous shapes, of which the typical hexagon has drawn the most interest. However, the relationship between shape and properties has not been fully probed, owing to the lack of a proper system. Here, we demonstrate for the first t...

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Detalles Bibliográficos
Autores principales: Li, Lin, Gao, Min, Baltrusaitis, Jonas, Shi, Dong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419211/
https://www.ncbi.nlm.nih.gov/pubmed/36133110
http://dx.doi.org/10.1039/c9na00504h
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author Li, Lin
Gao, Min
Baltrusaitis, Jonas
Shi, Dong
author_facet Li, Lin
Gao, Min
Baltrusaitis, Jonas
Shi, Dong
author_sort Li, Lin
collection PubMed
description 2D atomic crystals have been widely explored, usually owing to their numerous shapes, of which the typical hexagon has drawn the most interest. However, the relationship between shape and properties has not been fully probed, owing to the lack of a proper system. Here, we demonstrate for the first time the shape-dependent surface oxidation of 2D Mo(2)C crystals, where the elongated flakes are preferentially oxidized under ambient conditions when compared with regular ones, showing higher chemical activity. The gradual surface oxidation of elongated Mo(2)C crystals as a function of time is clearly observable. Structural determinations reveal that a discrepancy in the arrangement of Mo and C atoms between elongated and regular crystals accounts for the selective oxidation behavior. The identification of the shape-dependent surface oxidization of Mo(2)C crystals provides significant possibilities for tuning the properties of 2D materials via shape-control.
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spelling pubmed-94192112022-09-20 The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals Li, Lin Gao, Min Baltrusaitis, Jonas Shi, Dong Nanoscale Adv Chemistry 2D atomic crystals have been widely explored, usually owing to their numerous shapes, of which the typical hexagon has drawn the most interest. However, the relationship between shape and properties has not been fully probed, owing to the lack of a proper system. Here, we demonstrate for the first time the shape-dependent surface oxidation of 2D Mo(2)C crystals, where the elongated flakes are preferentially oxidized under ambient conditions when compared with regular ones, showing higher chemical activity. The gradual surface oxidation of elongated Mo(2)C crystals as a function of time is clearly observable. Structural determinations reveal that a discrepancy in the arrangement of Mo and C atoms between elongated and regular crystals accounts for the selective oxidation behavior. The identification of the shape-dependent surface oxidization of Mo(2)C crystals provides significant possibilities for tuning the properties of 2D materials via shape-control. RSC 2019-11-11 /pmc/articles/PMC9419211/ /pubmed/36133110 http://dx.doi.org/10.1039/c9na00504h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Li, Lin
Gao, Min
Baltrusaitis, Jonas
Shi, Dong
The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title_full The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title_fullStr The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title_full_unstemmed The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title_short The shape-dependent surface oxidation of 2D ultrathin Mo(2)C crystals
title_sort shape-dependent surface oxidation of 2d ultrathin mo(2)c crystals
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419211/
https://www.ncbi.nlm.nih.gov/pubmed/36133110
http://dx.doi.org/10.1039/c9na00504h
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