Citation: An Feng Zhang, Yong Chun Zhang, Na Xing, Ke Ke Hou, Jing Wang, Xin Wen Guo. Synthesis of micron-sized hollow silica spheres with a novel mesoporous shell of MCF[J]. Chinese Chemical Letters, ;2009, 20(7): 852-856. doi: 10.1016/j.cclet.2009.03.001 shu

Synthesis of micron-sized hollow silica spheres with a novel mesoporous shell of MCF

State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China

Received Date: 24 October 2008

Fund Project: This project was sponsored by the Program for New Century Excellent Talents in the University (No.NCET-04-0268) and by the 111 Project. The author thanks Prof. Roel Prins for his thoughtful discussion.

Micron-sized hollow silica spheres whose shells are made up of mesocellular silica foams (MCFs) have been synthesized by one-pot sol-gel method in benzene/water/P123 emulsion. The material is characterized with SEM, TEM, BET and ²⁹Si MAS NMR.The results show that the MCFs of the unique shell of hollow silica spheres were connected by large windows with a narrow distribution of~10 nm in diameter, the inner space of the hollow sphere is accessible. And the formation mechanism of the hollow silica spheres is proposed.
- Hollow spheres,
- MCF,
- Mesoporous material
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