Self-assembly of iron oxide precursor micelles driven by magnetic stirring time in sol-gel coatings.

ABSTRACT: The purpose of this work is to fabricate self-assembled microstructures by the sol-gel method and study the morphological, structural and compositional dependence of ε-Fe₂O₃ nanoparticles embedded in silica when glycerol (GLY) and cetyl-trimethylammonium bromide (CTAB) are added as steric agents simultaneously. The combined action of a polyalcohol and a surfactant significantly modifies the morphology of the sample giving rise to a different microstructure in each of the studied cases (1, 3 and 7 days of magnetic stirring time). This is due to the fact that the addition of these two compounds leads to a considerable increase in gelation time as GLY can interact with the alkoxide group on the surface of the iron oxide precursor micelle and/or be incorporated into the h

SUBMITTER: Lopez-Sanchez J 

PROVIDER: S-EPMC9064545 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature