Hanjiang Dong

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Sub-3 μm silica core-shell particles (CSPs) were fabricated by a multilayer-by-multilayer method recently developed in our group. In this work, we report on methods to prepare and modify the properties of these CSPs by high temperature calcination, pore size enlargement under basic conditions, and rehydrolyzation in boiling water to make them more suitable(More)
Monodisperse silica core-shell particles with a high surface area and large pore size were rapidly prepared via a multilayer-by-multilayer (ML-b-ML) process, with 6-7 layers of silica nanoparticles deposited per coating cycle onto an oppositely charged polyelectrolyte in 0.1 M NH(4)NO(3) at pH 2.7. The resultant porous shells show much greater porosity(More)
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