Noble-Metal Nanostructures as Highly Efficient Peroxidase Mimics

Noble-metal nanostructures have emerged as a category of efficient and versatile peroxidase mimics in recent years. Enhancing their peroxidase-like activities is essential to the realization of certain applications. In this review, we focus on how to engineer noble-metal nanostructures with enhanced peroxidase-like activities. The article is organized by introducing the impacts of surface capping ligands, particle size, shape, elemental composition, and internal structure as key parameters for the peroxidase-like activity of noble-metal nanostructures. Emphasis is given to the controlled synthesis of nanostructures and their peroxidase-like catalytic efficiencies. At the end, we provide a perspective on future developments in the research relevant to peroxidase mimics of noble metals.