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Journal article
Two-dimensional Mo1.33C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
Nature communications, v 8(1), pp 14949-14949
25 Apr 2017
PMID: 28440271
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
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, (Mo2/3Sc1/3)(2)AlC, with in-plane chemical ordering, and by selectively etching the Al and Sc atoms, we show evidence for 2D Mo1.33C sheets with ordered metal divacancies and high electrical conductivities. At similar to 1,100 F cm(-3), this 2D material exhibits a 65% higher volumetric capacitance than its counterpart, Mo2C, 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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Details
- Title
- Two-dimensional Mo1.33C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering
- Creators
- Quanzheng Tao - Linköping UniversityMartin Dahlqvist - Linköping UniversityJun Lu - Linköping UniversitySankalp Kota - Drexel UniversityRahele Meshkian - Linköping UniversityJoseph Halim - Linköping UniversityJustinas Palisaitis - Linköping UniversityLars Hultman - Linköping UniversityMichel W. Barsoum - Drexel UniversityPer O. A. Persson - Linkoping Univ, Thin Film Phys, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, SwedenJohanna Rosen - Linköping University
- Publication Details
- Nature communications, v 8(1), pp 14949-14949
- Publisher
- Springer Nature
- Number of pages
- 7
- Grant note
- 621-2012-4359; 622-2008-405; 621-2012-4425; 642-2013-8020 / Swedish Research council; Swedish Research Council; European Commission Swedish Foundation for Strategic Research (SSF) through Synergy Grant FUNCASE KAW 2015.0043 / Knut and Alice Wallenberg (KAW) Foundation; Knut & Alice Wallenberg Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000400065800001
- Scopus ID
- 2-s2.0-85027349786
- Other Identifier
- 991019167722504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary