Fluoride-Free Synthesis of Two-Dimensional Titanium Carbide (MXene) Using A Binary Aqueous System

Yang S, Zhang P, Wang F, Ricciardulli AG, Lohe MR, Blom PWM, Feng X (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 57

Pages Range: 15491-15495

Journal Issue: 47

DOI: 10.1002/anie.201809662

Abstract

Two-dimensional (2D) titanium carbide (Ti3C2) is emerging as an important member of the MXene family. However, fluoride-based synthetic procedures remain an impediment to the practical applications of this promising class of materials. Here we demonstrate an efficient fluoride-free etching method based on the anodic corrosion of titanium aluminium carbide (Ti3AlC2) in a binary aqueous electrolyte. The dissolution of aluminium followed by in situ intercalation of ammonium hydroxide results in the extraction of carbide flakes (Ti3C2Tx, T=O, OH) with sizes up to 18.6 μm and high yield (over 90 %) of mono- and bilayers. All-solid-state supercapacitor based on exfoliated sheets exhibits high areal and volumetric capacitances of 220 mF cm⁻² and 439 F cm⁻³, respectively, at a scan rate of 10 mV s⁻¹, superior to those of LiF/HCl-etched MXenes. Our strategy paves a safe way to the scalable synthesis and application of MXene materials.

Involved external institutions

Technische Universität Dresden

Germany (DE) Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research

Germany (DE)

How to cite

APA:

Yang, S., Zhang, P., Wang, F., Ricciardulli, A.G., Lohe, M.R., Blom, P.W.M., & Feng, X. (2018). Fluoride-Free Synthesis of Two-Dimensional Titanium Carbide (MXene) Using A Binary Aqueous System. Angewandte Chemie International Edition, 57(47), 15491-15495. https://doi.org/10.1002/anie.201809662

MLA:

Yang, Sheng, et al. "Fluoride-Free Synthesis of Two-Dimensional Titanium Carbide (MXene) Using A Binary Aqueous System." Angewandte Chemie International Edition 57.47 (2018): 15491-15495.

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