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Preparation of Mesoporous Silica Nanoflakes and Nanospheres with Perpendicular Pore Channels

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Abstract:

Silica nanoflakes and nanospheres with perpendicular pore channels are attractive due to their potential applications. Herein, the nanoflakes were prepared using the self-assemblies of a chi-ral low-molecular-weight amphiphile, L-18Ala4PyBr, as the templates; and nanospheres were prepared using this amphiphile and cyclohexane as a co-structure-directing agent. By gradually increasing the bridging alkylene chain length of L-18Ala4PyBr, amphiphiles L-18Ala6PyBr and L-18Ala11PyBr were synthesized. Nanoflakes with perpendicular pore channels and nanoworms with horizontal pore channels were prepared using L-18Ala6PyBr and L-18Ala11PyBr, respectively. The hydrophobic association of the bridging alkylene chains should play an important role in controlling the morphologies and pore architectures of the mesoporous silicas.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.5178

Publication date: March 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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