期刊
NANOSCALE RESEARCH LETTERS
卷 4, 期 11, 页码 1257-1262出版社
SPRINGEROPEN
DOI: 10.1007/s11671-009-9389-4
关键词
Mesoporous silica; Nanofiber; Anodic aluminum oxide; P123; Template synthesis
资金
- National Natural Science Foundation of China [50701024]
- National Key Project of Fundamental Research [2007CB936300]
- China Postdoctoral Science Foundation [20080430164, 200801366]
- Jiangsu Postdoctoral Science Foundation [0801040B]
Mesoporous silica nanofibers were synthesized within the pores of the anodic aluminum oxide template using a simple sol-gel method. Transmission electron microscopy investigation indicated that the concentration of the structure-directing agent (EO20PO70EO20) had a significant impact on the mesostructure of mesoporous silica nanofibers. Samples with alignment of nanochannels along the axis of mesoporous silica nanofibers could be formed under the P123 concentration of 0.15 mg/mL. When the P123 concentration increased to 0.3 mg/mL, samples with a circular lamellar mesostructure could be obtained. The mechanism for the effect of the P123 concentration on the mesostructure of mesoporous silica nanofibres was proposed and discussed.
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