title: New strategy to prepare hollow silica microspheres with tunable holes on the shell wall.
abstract: Hollow silica microspheres with holes of tunable numbers and sizes on the shell wall were prepared in this study. Clusters with positively charged polystyrene (PS) microspheres as the central spheres (CSs) and negatively charged PS spheres as the "halo" spheres (HSs) were formed via electrostatic interactions and utilized as a template. In the subsequent silica coating process, only CS was selectively coated; hence, after calcination, porous hollow silica microspheres were obtained.
authors.affiliation: School of Chemistry and Materials Science, Ludong University , Yantai 264025, China.
authors.forename: Hongri
authors.initials: H
authors.lastname: Wan
authors.forename: Yue
authors.initials: Y
authors.lastname: Long
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.forename: Kai
authors.initials: K
authors.lastname: Song
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Yang
authors.forename: Chen-Ho
authors.initials: CH
authors.lastname: Tung
mesh_terms: D008863:Microspheres; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry; D016062:Porosity; D012822:Silicon Dioxide / Q000138:chemical synthesis* / Q000737:chemistry; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D011137:Polystyrenes; D012822:Silicon Dioxide