Hydrothermal synthesis of hollow silica spheres under acidic conditions

It is well-known that silica can be etched in alkaline media or in a unique hydrofluoric acid (HF) solution, which is widely used to prepare various kinds of hollow nanostructures (including silica hollow structures) via silica-templating methods. In our experiments, we found that stöber silica sphe...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 27(2011), 11 vom: 07. Juni, Seite 7185-91
1. Verfasser: Yu, Qiyu (VerfasserIn)
Weitere Verfasser: Wang, Pengpeng, Hu, Shi, Hui, Junfeng, Zhuang, Jing, Wang, Xun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Coloring Agents Salts Silicon Dioxide 7631-86-9
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520 |a It is well-known that silica can be etched in alkaline media or in a unique hydrofluoric acid (HF) solution, which is widely used to prepare various kinds of hollow nanostructures (including silica hollow structures) via silica-templating methods. In our experiments, we found that stöber silica spheres could be etched in generic acidic media in a well-controlled way under hydrothermal conditions, forming well-defined hollow/rattle-type silica spheres. Furthermore, some salts such as NaCl and Na(2)SO(4) were found to be favorable for the formation of hollow/rattle-type silica spheres 
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700 1 |a Hu, Shi  |e verfasserin  |4 aut 
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700 1 |a Zhuang, Jing  |e verfasserin  |4 aut 
700 1 |a Wang, Xun  |e verfasserin  |4 aut 
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