Nanotechnology exchange Home Nanotechnology exchange What is the role of the passivation layer of metal nanoparticles
Metal nanoparticles are a widely used material that can be applied in various fields, such as medicine, electronics, energy, and the environment. They have extremely small size and high surface area, which can enhance the performance of many materials. However, the surface of metal nanoparticles is often very active and easily reacts with the surrounding environment, so a passivation layer is needed to protect their surface. This article will explore the role of the passivation layer of metal nanoparticles. The passivation layer is a thin film that covers the surface of metal nanoparticles, usually composed of inorganic or organic substances. This thin film can protect the surface of metal nanoparticles and prevent them from reacting with the surrounding environment. Especially in catalytic reactions, the surface of metal nanoparticles often reacts with reactants, and the passivation layer can prevent such reactions from occurring, thereby improving the selectivi...