The Synthesis and Catalytic Applications of Nanosized High‐Entropy Alloys

• Published in: ChemCatChem Vol. 13; no. 3; pp. 806 - 817
• Main Authors: Zheng, Huan, Luo, Guoying, Zhang, Aijun, Lu, Xiaofeng, He, Lin
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 05.02.2021
• Subjects: Ammonia; Catalysis; Catalysts; catalytic applications; Chemical reactions; Chemical synthesis; computational methods; Decomposition reactions; High entropy alloys; Nanomaterials; Nanoparticles; nanosized; Oxidation; synthesis
• ISSN: 1867-3880; 1867-3899
• DOI: 10.1002/cctc.202001163

Creative approaches towards the fabrication of metal nanomaterials for catalysis are highly demanded. In this context, integrating multiple elements into single nanosized alloys opens up a new route for tailoring catalytic performance. Particularly, nanosized high‐entropy alloys (HEAs) with five or more metallic components have emerged as a new platform for catalyst discovery in broad cases, such as ammonia decomposition, ammonia oxidation, and various electrochemical reactions. In this minireview, the vigorous current activity on the synthesis of HEAs nanoparticles (NPs) and their catalytic applications have been summarized. Theoretically, the rational design of heterogeneous HEAs catalysts has also been briefly discussed. Nanosized high‐entropy alloys: Recently, nanosized HEAs have been successfully fabricated with various methods, such as fast pyrolysis, solvothermal synthesis and mechanical alloying, and that provides a new platform for discovering catalysts. In this minireview, the synthesis and catalytic applications as well as the rational computational design strategy and the future perspectives of nanosized HEAs are briefly discussed.