A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte

@article{Li2019AGL,
  title={A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte},
  author={Youbing Li and Huixia Shao and Zifeng Lin and Jun Lu and Liyuan Liu and Benjamin Duployer and Per O. {\AA}. Persson and Per Eklund and Lars Hultman and Mian Li and Ke Chen and Xian-Hu Zha and Shiyu Du and Patrick Rozier and Zhifang Chai and Encarnacion Raymundo-Pi{\~n}ero and P. L. Taberna and Patrice Simon and Qing Huang},
  journal={Nature Materials},
  year={2019},
  pages={1-6}
}
Two-dimensional carbides and nitrides of transition metals, known as MXenes, are a fast-growing family of materials that have attracted attention as energy storage materials. MXenes are mainly prepared from Al-containing MAX phases (where A = Al) by Al dissolution in F-containing solution; most other MAX phases have not been explored. Here a redox-controlled A-site etching of MAX phases in Lewis acidic melts is proposed and validated by the synthesis of various MXenes from unconventional MAX… 

Li-ion storage properties of two-dimensional titanium-carbide synthesized via fast one-pot method in air atmosphere

Using elemental precursors, a method for MXene synthesis via titanium aluminium carbide formation and subsequent in situ etching in one molten salt pot is reported, enabling the synthesis of MXenes in an air environment without using inert gas protection.

Exfoliation and Delamination of Ti3C2Tx MXene Prepared via Molten Salt Etching Route.

The successful exfoliation of MS-Ti3C2Tx via the intercalation of the organic molecule TBAOH (tetrabutylammonium hydroxide), followed by sonication to separate the layers is reported, showing that tuning of the surface chemistry of MXene is of key importance to this field with the likely result being increased electrochemical performance.

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MXenes have been intensively studied for electrochemical energy storage and other applications. However, time-consuming multistep procedures involving hypertoxic HF or alike are utilized in

HCl‐Based Hydrothermal Etching Strategy toward Fluoride‐Free MXenes

Density functional theory calculations are used to show the etching feasibility of hydrochloric acid (HCl) on various MAX phases, enabling the development of fluoride-free MXenes and opens a new window to explore their potential in energy-storage applications.

Fast and High-Yield Anhydrous Synthesis of Ti3 C2 Tx MXene with High Electrical Conductivity and Exceptional Mechanical Strength.

2D transition metal carbides or nitrides (MXenes) have attracted considerable attention from materials scientists and engineers owing to their physicochemical properties. Currently, MXenes are

In Situ Preparation of MXenes in Ambient-Temperature Organic Ionic Liquid Aluminum Batteries with Ultrastable Cycle Performance.

The one-stop preparation-application process prevents theMXenes from contacting water and air, and the MXenes etched in the aluminum battery are more conducive to the intercalation/deintercalation of Al3+.

In Situ Electrosynthesis of MAX-Derived Electrocatalysts for Superior Hydrogen Evolution Reaction.

MAX phases are frequently dominated as precursors for the preparation of the star material MXene, but less eye-dazzling by their own potential applications. In this work, the electrocatalytic
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