What question did this study set out to answer?

This work aims to develop scalable MXene/metal composites to enhance energy conversion and storage performance.

March 4, 20260 citationsOpen Access

Engineering MXene/metal composites from MAX phase/metal–Al precursors for high-performance energy conversion and storage

SSSergii Sergiienko AKAndrei V. KovalevskyUniversity of Aveiro JLJan LuxaUniversity of Chemistry and Technology, Prague

Key Points

This work aims to develop scalable MXene/metal composites to enhance energy conversion and storage performance.
Synthesis of MXene/metal composites through direct etching of MAX phase/metal–Al precursors.
Combination of Ti3AlC2 MAX phase with Ni–Al, Cu–Al, and Ni–Cu–Al alloys.
Optimization of sintering and etching conditions to achieve 3D porous architectures.
Formation of three-dimensional porous MXene/metal architectures.
Enhanced electrochemical performance in energy applications.
High activity toward hydrogen evolution reaction and improved areal capacitance.

Abstract

This work presents a scalable approach for synthesizing MXene/metal composites via direct etching of MAX phase/metal–Al alloy precursor materials. By combining Ti3AlC2 MAX phase with Ni–Al, Cu–Al, and Ni–Cu–Al alloys and optimizing sintering and etching conditions, the authors demonstrate the formation of three-dimensional porous MXene/metal architectures with enhanced electrochemical performance. The composites exhibit high activity toward the hydrogen evolution reaction and improved areal capacitance, highlighting their potential for energy conversion and storage applications.

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