A dual template method for synthesizing hollow silica spheres with mesoporous shells |
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| Authors: | Shigang Zhang Lei Xu Yingfeng Zhao Quanyi Wang Zhengxi Yu Zhongmin Liu |
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| Affiliation: | a Applied Catalysis Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, PR China
b Graduate University of Chinese Academy of Science, Beijing 100039, PR China |
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| Abstract: | PS/silica core/shell composites were synthesized by the modified Stöber method using polystyrene spheres and cetyltrimethylammonium bromide as dual templates under room temperature. The silicate species and the templates were self-assembled to form mesoporous silica shell on the surface of the PS spheres. Hollow silica spheres with mesoporous shell were obtained by removing the polymer core and the templates through calcination. The hollow silica spheres showed high specific surface area of 1099.5 m2/g and narrow pore size distribution centered at 2.31 nm. |
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| Keywords: | Mesoporous Hollow sphere Silica Template synthesis Porosity Coatings |
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