Journal article
2D molybdenum and vanadium nitrides synthesized by ammoniation of 2D transition metal carbides (MXenes)
Nanoscale, v 9(45), pp 17722-17730
2017
PMID: 29134998
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
MXenes are a rapidly growing class of 2D transition metal carbides and nitrides, finding applications in fields ranging from energy storage to electromagnetic interference shielding and transparent conductive coatings. However, while more than 20 carbide MXenes have already been synthesized, Ti4N3and Ti2N are the only nitride MXenes reported so far. Here by ammoniation of Mo2CTxand V2CTxMXenes at 600 °C, we report on their transformation to 2D metal nitrides. Carbon atoms in the precursor MXenes are replaced with N atoms, resulting from the decomposition of ammonia molecules. The crystal structures of the resulting Mo2N and V2N were determined with transmission electron microscopy and X-ray pair distribution function analysis. Our results indicate that Mo2N retains the MXene structure and V2C transforms to a mixed layered structure of trigonal V2N and cubic VN. Temperature-dependent resistivity measurements of the nitrides reveal that they exhibit metallic conductivity, as opposed to semiconductor-like behavior of their parent carbides. As important, room-temperature electrical conductivity values of Mo2N and V2N are three and one order of magnitude larger than those of the Mo2CTxand V2CTxprecursors, respectively. This study shows how gas treatment synthesis such as ammoniation can transform carbide MXenes into 2D nitrides with higher electrical conductivities and metallic behavior, opening a new avenue in 2D materials synthesis.
Metrics
Details
- Title
- 2D molybdenum and vanadium nitrides synthesized by ammoniation of 2D transition metal carbides (MXenes)
- Creators
- Patrick Urbankowski - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USABabak Anasori - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USAKanit Hantanasirisakul - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USALong Yang - Department of Applied Physics and Applied Mathematics, Columbia University, New York, USALihua Zhang - Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, USABernard Haines - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USASteven J May - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USASimon J. L Billinge - Department of Applied Physics and Applied Mathematics, Columbia University, New York, USA, Condensed Matter Physics and Materials Science DepartmentYury Gogotsi - A.J. Drexel Nanomaterials Institute and Department of Materials Science & Engineering, Drexel University, Philadelphia, USA
- Publication Details
- Nanoscale, v 9(45), pp 17722-17730
- Publisher
- Royal Society of Chemistry
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000416825000010
- Scopus ID
- 2-s2.0-85035111198
- Other Identifier
- 991014877903504721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
Highly Cited Paper
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied