Mohanty, Paritosh and Landskron, Kai (2009) Simple Systematic Synthesis of Periodic Mesoporous Organosilica Nanoparticles with Adjustable Aspect Ratios. Nanoscale Research Letters, 4 (12). pp. 1524-1529. ISSN 1931-7573 (Print) 1556-276X (Online)
Official URL: http://www.springerlink.com/content/n76496p64k173l...
One-dimensional periodic mesoporous organosilica (PMO) nanoparticles with tunable aspect ratios are obtained from a chain-type molecular precursor octaethoxy-1,3,5-trisilapentane. The aspect ratio can be tuned from 2:1 to >20:1 simply by variation in the precursor concentration in acidic aqueous solutions containing constant amounts of triblock copolymer Pluronic P123. The mesochannels are highly ordered and are oriented parallel to the longitudinal axis of the PMO particles. No significant Si–C bond cleavage occurs during the synthesis according to 29Si MAS NMR. The materials exhibit surface areas between 181 and 936 m2 g−1.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||07 Jun 2010 11:45|
|Last Modified:||07 Jun 2010 11:45|
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