Microfluidic Technology: A New Strategy for Controllable Synthesis of Metal Nanomaterials

Abstract Microfluidic technology has exhibited remarkable potential and significance in the precise preparation of multifunctional nanomaterials. Thanks to its small reaction volume and superior hydrodynamic control, this technology has emerged as an essential tool for synthesizing multifunctional nanomaterials with precisely tunable microstructures and morphologies. This paper reviews the latest advancements in the controllable synthesis of metal nano‐electrocatalysts utilizing microfluidic technology. Firstly, it systematically elucidates the fundamental principles of microfluidic synthesis technology and its distinctive parameter control strategies. Subsequently, it delves deeply into the mechanism of reaction enhancement in the synthesis process of metal nanoparticles in the microfluidic environment. Through the analysis of specific cases, the extensive application prospects and distinctive advantages of the microfluidic system in the preparation of nano‐electrocatalysts have been further elucidated. Finally, it summarizes and looks forward to the challenges and future development directions that microfluidic technology faces in the synthesis of nano‐electrocatalysts. This review aims to provide valuable insights into the application of microfluidic synthesis technology in the morphology design and technological innovation of electrocatalysts.