Insights into high-entropy material synthesis dynamics criteria based on a thermodynamic framework

Area of Science:

• Materials Science
• Solid State Chemistry

Background:

• High-entropy materials (HEMs) exhibit structural diversity and tunable properties, attracting significant research interest.
• Existing HEM synthesis criteria primarily rely on thermodynamics, often leading to practical synthesis challenges due to a lack of kinetic guidance.

Purpose of the Study:

• To explore synthesis dynamics principles for HEMs based on thermodynamic formation criteria.
• To address the limitations of purely thermodynamic approaches in guiding specific process changes during HEM synthesis.

Main Methods:

• Investigated the influence of synthesis kinetic rates on HEM reaction products.
• Analyzed various aspects of HEM synthesis criteria to identify suitable technologies for high-performance catalysts.

Main Results:

• Established principles of synthesis dynamics crucial for HEM formation.
• Demonstrated that kinetic factors significantly influence the final products of HEM synthesis.
• Identified new technologies for developing high-performance HEM catalysts.

Conclusions:

• This work provides specific guidelines for the rational design of material synthesis processes.
• Enables better prediction of physical and chemical characteristics for customized HEMs.
• Outlines future directions for the prediction and customization of high-performance HEM catalysts.