PUB-2018-IEA

Inherent electrochemistry and charge transfer properties of few-layered two-dimensional Ti3C2Tx MXene

"Pranati Nayak,‡ Qiu Jiang,‡ Rajeshkumar Mohanraman,‡ Dalaver Anjum, Mohamed Nejib Hedhili and Husam N. Alshareef" Inherent electrochemistry and charge transfer properties of few-layered two-dimensional Ti3C2Tx MXene
​Nanoscale, DOI: 10.1039/c8nr01883a​​​
Pranati Nayak, ‡ Qiu Jiang, ‡ Rajeshkumar Mohanraman, ‡ Dalaver Anjum, Mohamed Nejib Hedhili and Husam N. Alshareef
Ti3C2, MXene, electrochemical
2018
​We report the effect of the Ti3C2Tx MXene flake thickness on its inherent electrochemistry and heterogeneous charge transfer characteristics. It is shown that Ti3C2Tx undergoes irreversible oxidation in a positive potential window, which strongly depends on the flake thickness and pH of the electrolyte. Few-layered Ti3C2Tx exhibits faster electron transfer kinetics (k0 = 0.09533 cm s−1) with a [Fe(CN)6]4−/3− redox mediator compared to multi-layered Ti3C2Tx (k0 = 0.00503 cm s−1). In addition, the few-layered free standing Ti3C2Tx film electrode remains intact after enduring irreversible oxidation.​