Design of advanced electrocatalysts for the high-entropy alloys: Principle, progress, and perspective

High-entropy alloys (HEAs), also known as multi-principal component alloys, possess a range of attractive properties that cannot be achieved by traditional alloys due to their disordered atomic structure. HEAs are novel materials that have been developed in recent years and exhibit exceptional properties that surpass traditional alloy materials. The HEAs demonstrate characteristics such as the high entropy effect, the slow diffusion effect, the lattice distortion effect, and the "cocktail" effect. These properties have infinite potential for HEAs to become the next generation of electrocatalytic materials. Herein, we review the properties of the basic definition of HEAs, highlight the latest synthesis methods for producing nanoscale HEAs, and explore the research progress of HEAs nanoscale catalysts in various electrochemical reactions.(c) 2023 Elsevier B.V. All rights reserved.