Low-temperature annealing of 2D Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene films using electron wind force in ambient conditions

Two-dimensional transition metal carbides and nitrides, known as MXenes, are layered materials with unique functionalities which make them suitable for applications such as energy storage devices, supercapacitors, electromagnetic interference shielding, and wireless communications. Since they are wet-processed, MXenes need annealing to improve their electrical conductivity. The extent of annealing highly depends on temperature; however, higher temperatures can also impact the resulting phases and structure. In this study, we present a non-thermal annealing process utilizing an electron wind force (EWF) method in ambient conditions. This process is demonstrated on freestanding Ti3C2Tx films, where we show up to 70% decrease in resistivity at temperatures below 120 °C compared to conventional thermal annealing methods. MXene structures before and after annealing are analyzed using Raman spectroscopy and ex situ and in situ X-ray diffraction. Surface terminations and intra-flake defects modification in Ti3C2Tx layers after EWF annealing impart better electrical conductivity to MXene film than the non-annealed films. Graphic abstract: [Figure not available: see fulltext.]

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Work Title Low-temperature annealing of 2D Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene films using electron wind force in ambient conditions
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Open Access
Creators
  1. Md Abu Jafar Rasel
  2. Brian Wyatt
  3. Maxwell Wetherington
  4. Babak Anasori
  5. Aman Haque
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of Materials Research
Publication Date September 14, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1557/s43578-021-00373-5
Deposited November 15, 2021

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Version 1
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  • Created
  • Added MXene_Manuscript_R1.docx
  • Added Creator Md Abu Jafar Rasel
  • Added Creator Brian Wyatt
  • Added Creator Maxwell Wetherington
  • Added Creator Babak Anasori
  • Added Creator Aman Haque
  • Published
  • Updated
  • Updated