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From Nanotubes to Nano-Cocoons with Coiled Pore Channels

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Silica nanotubes with coiled pore channels and hollow spheres with coiled or concentric circular pore channels have been prepared using the self-assemblies of chiral cationic amphiphiles as templates. However, the relationship among these morphologies and pore architectures has not been well studied. For a better understanding the relationship, silica nanostructures were systematically prepared by tuning the reaction conditions. With increasing the stirring rate, silica nanotube with coiled pore channels changed to linked nano-cocoon with coiled pore channels. With increasing the concentration of the reaction mixture, the morphology changed from sphere to linked cocoon, and then to nanorod with lamellar mesopores on the surface. Transmission electron microscopy images taken after different reaction times indicated a cooperation mechanism.
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Keywords: MESOPOROUS MATERIALS; NANOCOCOON; NANOTUBE; SELF-ASSEMBLY; SILICA

Document Type: Research Article

Publication date: 2011-09-01

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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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