Synthesis and characterization of multi-wall silica nanospheres
Résumé
Multi-wall silica nanospheres have been synthesized from non-ionic surfactant, and TEOS as precursor under acidic and reflux conditions. The wall-to-wall distance inside the "onion-like" texture is close to 10 nm while the nanoscale objects depict polydisperse particle sizes ranging from 80 to 300 nm. Nitrogen physisorption measurement demonstrates a Brunauer-Emmet-Teller (BET) surface area of 691 m2 g-1 associated to a total pore volume of 0.8 cm3g-1 .
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