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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2019
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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. |
format | Online Article Text |
id | pubmed-9419211 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | RSC |
record_format | MEDLINE/PubMed |
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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