Facile synthesis of porous flower-like SrCO3 nanostructures by integrating bottom-up and top-down routes

Abstract This work shows that a chemical bottom-up and successive top-down approach is a good synthetic strategy for nanoporous materials. The three-dimensional (3D) flower-like SrCO 3 nanocrystals have been prepared via a hydrothermal treatment process with a subsequently selective etching of the certain crystalline planes of SrCO 3 . Pores formed on the flowers owing to the loss of by-products of H 2 O and CO 2 . Accordingly, the original flower-like morphology of SrCO 3 was not preserved upon pore formation and during continuous stirring in the synthesis. Rearrangement of the SrCO 3 particles via a dissolution-recrystallization process occurred under our certain experimental conditions. Consequently, SrCO 3 particles with coarser surfaces and porous structures were obtained.

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