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Preparation of Mesoporous Silica Nanoribbons and Nanoflakes with Short Pore Channels Using a Chiral Amphiphile

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Abstract:

A chiral cationic low-molecular-weight amphiphile, derived from l-alanine, was synthesized. Templated by the self-assemblies of the amphiphile, sol–gel reactions were carried out to control the morphologies and pore architectures of mesoporous silicas. The results reveal that the morphologies and pore architectures of mesoporous silicas are sensitive to the reaction conditions, such as temperature and the concentration of NaOH. When the reaction was carried out at 25 °C, right-handed coiled mesoporous silica nanoribbons with short pore channels were formed, most of which coiled tightly to form nanorods. However, at 80 °C, mesoporous silica nanoflakes with vertical pore channels were obtained.

Keywords: NANOSTRUCTURES; ORGANIC COMPOUNDS; OXIDE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2624

Publication date: October 1, 2010

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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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