Nanohybrids of a MXene and transition metal dichalcogenide for selective detection of volatile organic compounds – ScienceOpen
47
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Nanohybrids of a MXene and transition metal dichalcogenide for selective detection of volatile organic compounds

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Two-dimensional transition metal carbides/nitrides, known as MXenes, have been recently receiving attention for gas sensing. However, studies on hybridization of MXenes and 2D transition metal dichalcogenides as gas-sensing materials are relatively rare at this time. Herein, Ti 3C 2T x and WSe 2 are selected as model materials for hybridization and implemented toward detection of various volatile organic compounds. The Ti 3C 2T x/WSe 2 hybrid sensor exhibits low noise level, ultrafast response/recovery times, and good flexibility for various volatile organic compounds. The sensitivity of the hybrid sensor to ethanol is improved by over 12-fold in comparison with pristine Ti 3C 2T x. Moreover, the hybridization process provides an effective strategy against MXene oxidation by restricting the interaction of water molecules from the edges of Ti 3C 2T x. An enhancement mechanism for Ti 3C 2T x/WSe 2 heterostructured materials is proposed for highly sensitive and selective detection of oxygen-containing volatile organic compounds. The scientific findings of this work could guide future exploration of next-generation field-deployable sensors.

          Abstract

          Two-dimensional transition metal carbides and nitrides are promising for gas sensor applications. Here the authors report a nanohybrid-based wireless monitoring system with capabilities for selectivity and sensing for volatile organic compounds that are enhanced by heterojunction interfaces.

          Related collections

          Most cited references45

          • Record: found
          • Abstract: not found
          • Article: not found

          Guidelines for Synthesis and Processing of Two-Dimensional Titanium Carbide (Ti3C2Tx MXene)

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Ti3C2 MXene co-catalyst on metal sulfide photo-absorbers for enhanced visible-light photocatalytic hydrogen production

            Scalable and sustainable solar hydrogen production through photocatalytic water splitting requires highly active and stable earth-abundant co-catalysts to replace expensive and rare platinum. Here we employ density functional theory calculations to direct atomic-level exploration, design and fabrication of a MXene material, Ti3C2 nanoparticles, as a highly efficient co-catalyst. Ti3C2 nanoparticles are rationally integrated with cadmium sulfide via a hydrothermal strategy to induce a super high visible-light photocatalytic hydrogen production activity of 14,342 μmol h−1 g−1 and an apparent quantum efficiency of 40.1% at 420 nm. This high performance arises from the favourable Fermi level position, electrical conductivity and hydrogen evolution capacity of Ti3C2 nanoparticles. Furthermore, Ti3C2 nanoparticles also serve as an efficient co-catalyst on ZnS or Zn x Cd1−x S. This work demonstrates the potential of earth-abundant MXene family materials to construct numerous high performance and low-cost photocatalysts/photoelectrodes.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              The Rise of MXenes

                Bookmark

                Author and article information

                Contributors
                lstanciu@purdue.edu
                Journal
                Nat Commun
                Nat Commun
                Nature Communications
                Nature Publishing Group UK (London )
                2041-1723
                10 March 2020
                10 March 2020
                2020
                : 11
                : 1302
                Affiliations
                [1 ]ISNI 0000 0004 1937 2197, GRID grid.169077.e, School of Materials Engineering, , Purdue University, ; West Lafayette, IN 47907 USA
                [2 ]ISNI 0000 0004 1937 2197, GRID grid.169077.e, Birck Nanotechnology Center, , Purdue University, ; West Lafayette, IN 47907 USA
                [3 ]ISNI 0000 0004 1937 2197, GRID grid.169077.e, School of Electrical and Computer Engineering, , Purdue University, ; West Lafayette, IN 47907 USA
                [4 ]ISNI 0000 0004 0532 0580, GRID grid.38348.34, Department of Materials Science and Engineering, , National Tsing Hua University, ; Hsinchu, 30013 Taiwan
                Author information
                http://orcid.org/0000-0001-6059-0346
                Article
                15092
                10.1038/s41467-020-15092-4
                7064528
                32157089
                61058896-335f-4d91-95a1-4be0f1fa9111
                © The Author(s) 2020

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 30 October 2019
                : 14 February 2020
                Categories
                Article
                Custom metadata
                © The Author(s) 2020

                Uncategorized
                materials science,nanoscience and technology
                Uncategorized
                materials science, nanoscience and technology

                Comments

                Comment on this article