2D Ti3C2Tz MXene Synthesized by Water-free Etching of Ti3AlC2 in Polar Organic Solvents

Varun Natu, Rahul Pai, Maxim Sokol, Michael Carey, Vibha Kalra, Michel W. Barsoum

Research output: Contribution to journalArticlepeer-review

Abstract

The majority of etching methods for synthesizing MXenes use water as the main solvent, which in turn limits direct use of MXenes in water-sensitive applications. In this work, we show that it is possible to etch, and delaminate, MXenes in the absence of water by using organic polar solvents and ammonium dihydrogen fluoride. We also demonstrate that electrodes made from Ti3C2Tz etched in propylene carbonate, resulted in Na-ion battery anodes with double the capacity to those etched in water.

Original languageEnglish
Pages (from-to)616-630
Number of pages15
JournalChem
Volume6
Issue number3
DOIs
StatePublished - 12 Mar 2020
Externally publishedYes

Keywords

  • 2D materials
  • F-surface terminations
  • MXenes
  • Na-ion batteries
  • SDG7: Affordable and clean energy
  • energy storage
  • synthesis
  • water-free etching

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