Research advances in high-entropy alloy nanoparticles
High-entropy alloy nanoparticles(HEA-NPs)have promised multi-functional applications ascribing to their unique high-entropy effect,composing elements,and nanoscale size effect.However,how to overcome the immiscibility of all the composing elements and meanwhile downscale them into nanoscale remains a huge challenge.In this review,we systematically summarize the recent research advances of HEA-NPs.First,the preparation methods,synthesis conditions,and the strategies to further increase the number of metallic elements,including the top-down methods such as arc-discharge,laser ablation,sputtering deposition,and mechanical ball milling as well as the bottom-up methods such as rapid pyrolysis,electrodeposition,and wet chemistry have been categorized and reviewed.Then,the structural stability,oxidation and reduction behaviors,and anomalous size effect possessed by HEA-NPs are introduced with theoretical calculations and advanced characterizations,and the research achievements of HEA-NPs in multi-functional applications such as catalytic,electromagnetic,photothermal,gas-sensitive,and energy storage regions have been discussed.Finally,the current challenges,development directions,and future perspectives on these advanced materials are proposed.
万方数据
维普
