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Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering

The exploration of two-dimensional solids is an active area of materials discovery. Research in this area has given us structures spanning graphene to dichalcogenides, and more recently 2D transition metal carbides (MXenes). One of the challenges now is to master ordering within the atomic sheets. H...

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Autores principales: Tao, Quanzheng, Dahlqvist, Martin, Lu, Jun, Kota, Sankalp, Meshkian, Rahele, Halim, Joseph, Palisaitis, Justinas, Hultman, Lars, Barsoum, Michel W., Persson, Per O.Å., Rosen, Johanna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413966/
https://www.ncbi.nlm.nih.gov/pubmed/28440271
http://dx.doi.org/10.1038/ncomms14949
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author Tao, Quanzheng
Dahlqvist, Martin
Lu, Jun
Kota, Sankalp
Meshkian, Rahele
Halim, Joseph
Palisaitis, Justinas
Hultman, Lars
Barsoum, Michel W.
Persson, Per O.Å.
Rosen, Johanna
author_facet Tao, Quanzheng
Dahlqvist, Martin
Lu, Jun
Kota, Sankalp
Meshkian, Rahele
Halim, Joseph
Palisaitis, Justinas
Hultman, Lars
Barsoum, Michel W.
Persson, Per O.Å.
Rosen, Johanna
author_sort Tao, Quanzheng
collection PubMed
description The exploration of two-dimensional solids is an active area of materials discovery. Research in this area has given us structures spanning graphene to dichalcogenides, and more recently 2D transition metal carbides (MXenes). One of the challenges now is to master ordering within the atomic sheets. Herein, we present a top-down, high-yield, facile route for the controlled introduction of ordered divacancies in MXenes. By designing a parent 3D atomic laminate, (Mo(2/3)Sc(1/3))(2)AlC, with in-plane chemical ordering, and by selectively etching the Al and Sc atoms, we show evidence for 2D Mo(1.33)C sheets with ordered metal divacancies and high electrical conductivities. At ∼1,100 F cm(−3), this 2D material exhibits a 65% higher volumetric capacitance than its counterpart, Mo(2)C, with no vacancies, and one of the highest volumetric capacitance values ever reported, to the best of our knowledge. This structural design on the atomic scale may alter and expand the concept of property-tailoring of 2D materials.
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spelling pubmed-54139662017-05-17 Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering Tao, Quanzheng Dahlqvist, Martin Lu, Jun Kota, Sankalp Meshkian, Rahele Halim, Joseph Palisaitis, Justinas Hultman, Lars Barsoum, Michel W. Persson, Per O.Å. Rosen, Johanna Nat Commun Article The exploration of two-dimensional solids is an active area of materials discovery. Research in this area has given us structures spanning graphene to dichalcogenides, and more recently 2D transition metal carbides (MXenes). One of the challenges now is to master ordering within the atomic sheets. Herein, we present a top-down, high-yield, facile route for the controlled introduction of ordered divacancies in MXenes. By designing a parent 3D atomic laminate, (Mo(2/3)Sc(1/3))(2)AlC, with in-plane chemical ordering, and by selectively etching the Al and Sc atoms, we show evidence for 2D Mo(1.33)C sheets with ordered metal divacancies and high electrical conductivities. At ∼1,100 F cm(−3), this 2D material exhibits a 65% higher volumetric capacitance than its counterpart, Mo(2)C, with no vacancies, and one of the highest volumetric capacitance values ever reported, to the best of our knowledge. This structural design on the atomic scale may alter and expand the concept of property-tailoring of 2D materials. Nature Publishing Group 2017-04-25 /pmc/articles/PMC5413966/ /pubmed/28440271 http://dx.doi.org/10.1038/ncomms14949 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Tao, Quanzheng
Dahlqvist, Martin
Lu, Jun
Kota, Sankalp
Meshkian, Rahele
Halim, Joseph
Palisaitis, Justinas
Hultman, Lars
Barsoum, Michel W.
Persson, Per O.Å.
Rosen, Johanna
Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title_full Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title_fullStr Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title_full_unstemmed Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title_short Two-dimensional Mo(1.33)C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
title_sort two-dimensional mo(1.33)c mxene with divacancy ordering prepared from parent 3d laminate with in-plane chemical ordering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413966/
https://www.ncbi.nlm.nih.gov/pubmed/28440271
http://dx.doi.org/10.1038/ncomms14949
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