High-Entropy Electrode Materials: Synthesis, Properties and Outlook.

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• High-entropy materials (HEMs), first proposed in 2004, are a rapidly evolving class of high-performance materials.
• Over the past two decades, significant advancements have been made in their application to energy storage and electrocatalysis.
• Recent research focuses on reaction mechanisms and sustainable synthesis of HEMs.

Purpose of the Study:

• To review the evolving definition and development of high-entropy materials.
• To classify high-entropy electrode materials and discuss their applications in energy storage and catalysis.
• To evaluate synthesis methods for HEMs and propose future research directions.

Main Methods:

• Literature review of high-entropy materials research.
• Classification of high-entropy electrode materials based on synthesis and application.
• Comparative analysis of various synthesis techniques for HEMs.

Main Results:

• The definition of high-entropy materials has evolved, with recent emphasis on mechanisms and cleaner preparation.
• Applications in energy storage and catalysis are expanding, driven by new fabrication techniques.
• Current synthesis methods for HEMs often adapt techniques from single- or low-entropy materials, with limitations.

Conclusions:

• A clear definition and standardized synthesis approaches for high-entropy materials are needed.
• Further research into reaction mechanisms and sustainable fabrication is crucial for advancing HEM applications.
• Evaluating and optimizing synthesis methods will enhance the performance and applicability of high-entropy materials.