Inherent Electrochemistry and Charge Transfer Properties of Few-Layer Two Dimensional Ti3C2Tx MXene
Anjum, Dalaver H.
Hedhili, Mohamed N.
Alshareef, Husam N.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Materials Science and Engineering Program
Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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AbstractWe 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.
CitationNayak P, Jiang Q, Mohanraman R, Anjum DH, Hedhili MN, et al. (2018) Inherent Electrochemistry and Charge Transfer Properties of Few-Layer Two Dimensional Ti3C2Tx MXene. Nanoscale. Available: http://dx.doi.org/10.1039/c8nr01883a.
SponsorsResearch reported in this publication is supported by funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia. Authors would like to thank Dr. Narendra Kurra for helpful discussions. Dr. P. Nayak would like to thank DST (Government of India) for the Inspire Faculty Award (Grant No. 04/2015/002660).
PublisherRoyal Society of Chemistry (RSC)