Preparation of micron–sized polystyrene/silver core–shell microspheres by ultrasonic assisted electroless plating

Abstract

In the study, PS/Ag composite microspheres with polystyrene (PS) core and silver shell were synthesized by ultrasonic electroless plating. The samples were characterized by SEM, FTIR and XRD. The effects of times of sensitization and silver plating, mass ratio of AgNO3 to PS microspheres and stirring method on the preparation and dispersion of PS/Ag microspheres were studied. The results show that the more times of sensitization and silver plating, the more uniform the silver deposition on the surface of microspheres. When the mass ratio of AgNO3 to PS microspheres is 2: 1, it can promote the uniform coating of silver shell and reduce the content of free silver. Ultrasonic assisted electroless plating for 10 min can prevent PS/Ag microspheres from agglomerating and improve the speed of electroless plating. The thickness of the silver shell on the surface of the PS microsphere is about 200 nm.

Facile Synthesis of Conductive Flexible Composite Sn@Ag Microspheres and their Application in Anisotropic Conductive Films

“…Figure b shows the current Sn@Ag composite ACF and other types of ACF conductivity comparisons. [ 31,32 ] The results demonstrate that Sn@Ag has the advantage of high conductivity in the composite microspheres.…”

Designing bi-functional Ag-CoGd0.025Er0.05Fe1.925O4 nanoarchitecture via green method

“…The main challenge is to combine two materials with completely different magnetic and crystallographic properties in a regulated way is the main issue. Various techniques have been developed to create core-shell structures, such as co-precipitation, thermal decomposition, microemulsion, hydrothermal, electrodeposition, pulsed laser irradiation, and electroless plating [23,24]. The synthesized core-shell NPs should also be simple to create, have minimal toxicity for bio-compatibility, have a restricted size distribution, and be reproducible.…”