Inherent Electrochemistry and Charge Transfer Properties of Few-Layer Two Dimensional Ti3C2Tx MXene

Pranati Nayak, Qiu Jiang, Rajeshkumar Mohanraman, Dalaver H. Anjum, Mohamed N. Hedhili, Husam N. Alshareef

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We report the effect of Ti3C2Tx MXene flake thickness on its inherent electrochemistry and heterogeneous charge transfer characteristics. It is shown that the Ti3C2Tx undergoes irreversible oxidation in the positive potential window, which strongly depends on the flake thickness and pH of the electrolyte. Few-layer Ti3C2Tx exhibits faster electron transfer kinetics (k0=0.09533 cm/s) with Fe(CN)64−/3− redox mediator compared to multi-layer Ti3C2Tx (k0= 0.00503 cm/s). In addition, few-layer free standing Ti3C2Tx film electrode remains intact after enduring irreversible oxidation.
Original languageEnglish (US)
Pages (from-to)17030-17037
Number of pages8
JournalNanoscale
Volume10
Issue number36
DOIs
StatePublished - 2018

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