Artículos de revistas
Comparative study of the synthesis of silica nanoparticles in micromixer-microreactor and batch reactor systems
Fecha
2011-07Registro en:
Gutierrez, Laura Beatriz; Gomez, Leyre; Irusta, Silvia; Arruebo, Manuel; Santamaría, Jesús; Comparative study of the synthesis of silica nanoparticles in micromixer-microreactor and batch reactor systems; Elsevier Science Sa; Chemical Engineering Journal; 171; 2; 7-2011; 674-683
1385-8947
CONICET Digital
CONICET
Autor
Gutierrez, Laura Beatriz
Gomez, Leyre
Irusta, Silvia
Arruebo, Manuel
Santamaría, Jesús
Resumen
Two different reactors, namely a microreactor with an interdigital micromixer and a batch reactor, have been used to prepare silica nanoparticles. The effect of synthesis variables was studied, and the results are compared in terms of particle-size distribution and synthesis reproducibility for different reaction conditions. The microreactors operated with shorter nucleation times and a greater homogeneity in terms of temperature and composition. This resulted in narrower particle-size distributions and a lower polydispersity. The synthesis reproducibility and the reactant (TEOS) conversion were also higher when using micromixers compared with batch reactors for the same synthesis times. Because of these characteristics micromixer-microreactor systems appear as a promising alternative for the continuous synthesis of nanoparticles.