One-pot synthesis of silica core–shell particles with double shells and different pore orientations from their nonporous counterparts

Silica core–shell particles (CSPs) have been successfully synthesized from their nonporous counterparts under basic conditions in the presence of the cationic surfactant cetyltrimethylammonium chloride and NH4F using a new one-pot templated dissolution and templated redeposition hybrid method. This method leads to high yield (85%) CSPs with an extremely narrow particle size distribution (no particle aggregation or fine particles) and allows us …