Hollow Silica Spheres with a Novel Mesoporous Shell Perforated Vertically by Hexagonally Arrayed Cylindrical Nanochannels
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Zhang, Anfeng
- 通讯作者：
- Guo, XW (reprint author), Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China.
- 合写作者：
- Zhang, Yongchun,Xing, Na,Hou, Keke,Guo, Xinwen
- 发表时间：
- 2009-09-22
- 发表刊物：
- CHEMISTRY OF MATERIALS
- 收录刊物：
- SCIE、EI、Scopus
- 文献类型：
- J
- 卷号：
- 21
- 期号：
- 18
- 页面范围：
- 4122-4126
- ISSN号：
- 0897-4756
- 摘要：
- Hollow silica spheres with a mesoporous shell perforated by hexagonally arrayed cylindrical nanochannels have been synthesized using one-pot sol-gel/emulsion approach. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) investigations reveal that the shells of the as-made hollow silica spheres are partially covered by amorphous silica particles, which can be eliminated to a great extent after an additional hydrothermal treatment in autoclave. The hollow core structure is most likely formed by the stable benzene-in-water emulsion which acts as the removable template. And surfactant P123 favors the assembly of silica to form the mesostructured shell under acidic conditions. Using these hollow silica spheres as the hard template, structurally stable hollow carbon can be obtained, indicating that the pores on the silica shell are interconnected.
- 是否译文：
- 否
