A method for synthesizing the core (Ag)/shell (PSt) composite nanoparticles

作者：Li Y C; Wang C P; Hu P F; Liu X J^*

来源：Materials Letters, 2009, 63(20): 1659-1661.

DOI：10.1016/j.matlet.2009.05.001

• Polymer
• Multilayer structure
• Nanocomposites
• Nanomaterials

Core-shell composite materials have been widely used in many fields. In this paper, the core (Ag)-shell (PSt) composite nanoparticles have been successfully fabricated in microemulsions at ambient pressure. Firstly, Ag nanoparticles with about 60-100 nm in diameters were synthesized by reducing silver nitrate by ascorbic acid, and then, styrene polymerized at the surface of Ag nanoparticles by K(2)S(2)O(4) initiator in microemulsion solutions. The Ag/PSt core-shell composite nanoparticles were identified by transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and infrared spectra (IR). Results show that Ag-core nanoparticles were coated with ultra thin PSt shell with thickness of about 3-6 nm.

• 出版日期2009-8-15
• 单位厦门大学