The formation of gigantic hollow silica spheres from an EO76–PO29–EO76/butanol/ethanol/H2O quaternary system

Abstract
Gigantic hollow silica spheres with a hierarchical intra- and inter-particle porosity were obtained from an EO76–PO29–EO76/butanol/ethanol/H2O quaternary system, which is unique in its extremely rapid silica condensation and in the resulting hierarchical morphology.

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