| The performance of micro-nano materials is affected by their morphology. Using dimensions as the classification principle, the preparation and application progress of different types of silver micro/nano are reviewed. Zero-dimensional silver nanomaterials include silver atoms and silver nano-powder with a particle size of less than 15 nm, which mainly improve catalytic performance, antibacterial and optical properties. One-dimensional silver nanowires are prepared by chemical reduction methods and are mainly used for flexible electronic devices made of transparent nanosilver wire films. Two-dimensional silver micro-nano flakes can be prepared by ball milling, photo-induction, and template methods, and they have a wide range of applications in conductive pastes and electronic components. Three-dimensional silver micro-nano materials include spherical and irregular silver powder. The spherical silver powder is mainly used for conductive paste filling, while the irregular silver powder is mainly used in catalysis and photo-latent applications. Improving the preparation method, realizing the morphology control of micro-nano materials, and enhancing the stability of products are the development directions of silver nano-materials research. |
