Amanda Peterson Mann - Aerosol Synthesis of Porous Particles Using Simple Salts as a Pore Template

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      Publication Details (including relevant citation   information):

      Peterson, Amanda K; Morgan, David   Gene; Skrabalak, Sara E., Langmuir, 2010, 26(11), 8804-8809. DOI: 10.1021/la9045491



      Ultrasonic spray pyrolysis has been used as a facile aerosol   route to macroporous SiO(2) particles using simple inorganic   salts as a pore template and colloidal SiO(2) as building blocks   to the larger porous particles. As we found. the use of template   salts with low melting points was vital to macroporous particle   synthesis, as a dynamic droplet phase can be maintained   throughout product formation. Otherwise, relatively compact   particles are produced. Significantly, this approach avoids the   need for post-isolation elimination of the template, instead   permitting aqueous removal during product collection. Produced   particles were characterized by SEM, TEM, and surface area and   pore size measurements, while the influence of the selected salts   on the reactivity between the building block SiO(2) colloids is   discussed.

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