ChemInform Abstract: Preparation of Hard Mesoporous Silica Spheres.
Abstract
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract
Large transparent silica spheres are synthesized in a one-step procedure using oil-in-water emulsion chemistry using hydrophobic ( nBuO)4Si as Si source, cationic surfactants, and a base catalyst. The structure and size of pores depend on the pore-structure-directing CnMe3NCl (n = C12-18 alkyl) surfactant. By use of cetyltrimethylammonium bromide the spheres exhibit a BET surface area of 1100 m2/g which is comparable to those of zeolite-clay spheres.
