Seeded Synthesis of Monodisperse Core-Shell and Hollow Carbon Spheres

Abstract

Monodisperse carbon spheres between 500 and 900 nm are hydrothermally synthesized from glucose on polystyrene seeds. Control over temperature, time, glucose concentration, and seed size yields hybrid spheres without aggregation and no additional spheres population. Pyrolysis transforms the hybrid into hollow carbon spheres preserving monodispersity. This approach provides a basis for functional carbon spheres applicable in photonics and energy storage.

Keywords: carbon spheres; carbonaceous materials; hydrothermal synthesis; monodisperse microspheres; optical materials.