Fabrication of the tricontinuous mesoporous IBN-9 structure with surfactant CTAB
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
Imaging and Characterization Core Lab
Biological and Environmental Sciences and Engineering (BESE) Division
Chemical Science Program
Advanced Nanofabrication, Imaging and Characterization Core Lab
Nanostructured Functional Materials (NFM) laboratory
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AbstractIBN-9 is the first tricontinuous mesoporous material, consisting of three identical interpenetrating channels that are separated by a single continuous silica wall. It was originally synthesized using a specially designed surfactant as template. The need of special surfactant in the synthesis inhibits extensive investigation of this novel structure and its applications. We demonstrate in this study that such a complicated tricontinuous mesostructure can also be fabricated from the most common and commercially available surfactant cetyltrimethylammonium bromide (CTAB) with the help of polar organic additives, e.g., n-butanol. The role of n-butanol is to finely tune the surface curvature of the organic/inorganic interface during the cooperative self-assembly process. Electron microscopic techniques are employed to identify different mesostructures from the mixture. This study reveals the possibility of discovering unprecedented mesostructures from conventional surfactant-water- silicates systems. © 2011 American Chemical Society.
SponsorsThis work was supported by the Global Collaborative Research AEA program from King Abdullah University of Science and technology.
PublisherAmerican Chemical Society (ACS)
JournalChemistry of Materials