Dendritic Nanostructures of Silver: Facile Synthesis, Structural Characterizations, and Sensing Applications

摘要: Silver nanodendrites are synthesized by a simple surfactant-free method using a suspension of zinc microparticles as a heterogeneous reducing agent. Structural characterizations suggest the preferential growth along〈 100∟ and〈 111∟ directions by oriented attachment of silver nanocrystals in the diffusion limit, leading to the formation of silver nanodendrites 20− 30 nm in stem and branch diameter and 5− 50 μm in length. Surface-enhanced Raman scattering studies show that the silver nanodentrites give an …