Transition Metal-Based High-Entropy Materials for Catalysis

High-entropy materials (HEMs) have emerged as a pioneering paradigm in recent years, drawing substantial interest due to their unique combination of diverse elemental constituents and homogeneous solid-solution structure. This novel material class not only opens up extensive potential for materials discovery through a broad spectrum of elemental combinations but also facilitates fine-tuning of properties thanks to its distinctive microstructural characteristics. HEMs have garnered considerable attention across various applications, particularly in catalysis. The virtually infinite variations in elemental and compositional combinations within these multi-elemental systems enable meticulous optimization of the catalytic performance. Additionally, the high-entropy solid-solution structure potentially enhances structural, thermal, and chemical stability, which is vital for ensuring functionality under harsh conditions. Herein, we thoroughly explore the exceptional attributes of HEMs, designing strategies for transition metal-based catalysis, and three major catalytic fields of HEMs: electrocatalysis, photocatalysis, and thermocatalysis. This discussion aspires to provide valuable perspectives into the advancements and innovations in catalyst design and development.