Facile synthesis of copper, nickel and their bimetallic nanoparticles: optical and structural characterization.

ABSTRACT: This paper reports the synthesis and characterization of some spherical crystalline copper (Cu), nickel (Ni), and their bimetallic (Cu-Ni) nanoparticles (NPs) produced in deionized (DI) water via pulse laser ablation in liquid (PLAL) technique. XRD and SAED patterns showed the high crystallinity of the synthesized nanostructures with face-centered cubic structure. The TEM and HRTEM images revealed the nucleation of spherical nanocrystals with a size range of 2.5-25 nm, and no remarkable aggregation was seen. Some core-shell oxidized Cu and Ni nanostructures related to the dissolved oxygen in DI water were detected. The UV-Vis absorption spectra at different aging times showed that pure metal nanoparticles are more stable than bimetallic nanoparticles. Localized surface plasmon resonance (L

SUBMITTER: Aman AW 

PROVIDER: S-EPMC11813849 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature