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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/203764
- Mesoporous silica hollow and solid spheres by templating poly(pyrrole) inverse opals
- Yu, Aimin
- Poly(pyrrole) inverse opals (PPY-IO) with three-dimentional (3D) network of macropores were prepared by electropolymerization of pyrrole in the voids of polystyrene (PS) colloidal crystals and subsequently removing the PS. The as-prepared PPY-IO were then served as templates to be filled with prehydrolyzed silica sols followed by calcination to synthesize mesoporous silica spheres with well-controlled diameters. It was demonstrated that the reactant composition of the silica sol played an important role in controlling the shell thickness of the hollow spheres. Solid mesoporous silica spheres could be obtained when a concentrated TEOS sol was used. The morphology and pore structures of PPY-IO and silica spheres were characterized by SEM. TEM and small-angle XRD confirmed the ordered mesostructure of the prepared silica spheres with an average pore size of ca. 6 nm.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Life and Social Sciences
- Chemistry Letters, Vol. 40, no. 8 (Aug 2011), pp. 874-876
- Publication year
- FOR Code(s)
- 03 Chemical Sciences
- Hollow spheres; Mesoporous silica; Poly(pyrrole) inverse opals; Solid spheres; Templates
- Chemical Society of Japan
- Publisher URL
- Copyright © 2011 The Chemical Society of Japan.
- Additional information
- The authors acknowledge support from the Australian Research Council under its Discovery Project Scheme (No. DP0776086).
- Peer reviewed