title: Electron-tomography determination of the packing structure of macroporous ordered siliceous foams assembled from vesicles.
abstract: The packing structures of macroporous ordered siliceous foams (MOSFs) are systematically investigated by using a 3D electron tomography technique and the nanostructural characteristics for layered MOSFs are resolved. MOSF materials adopt an ordered 2D hexagonal arrangement in single-layered areas, regular honeycomb patterns in double-layered samples, and polyhedric cells similar to a Weaire-Phelan structure in multilayered areas, all following the principle of minimizing surface area, which is well understood in soap foams at the macroscopic scale. In surfactant-templated materials, liquid-crystal templating is generally applied, but here it is revealed that the surface-area-minimization principle can also be applied, which facilitates the design and synthesis of novel macroporous materials using surfactant molecules as templates.
authors.affiliation: Department of Chemistry, Fudan University, Shanghai, PR China.
authors.forename: Pei
authors.initials: P
authors.lastname: Yuan
authors.forename: Xufeng
authors.initials: X
authors.lastname: Zhou
authors.forename: Hongning
authors.initials: H
authors.lastname: Wang
authors.forename: Nian
authors.initials: N
authors.lastname: Liu
authors.forename: Yifan
authors.initials: Y
authors.lastname: Hu
authors.forename: Graeme J
authors.initials: GJ
authors.lastname: Auchterlonie
authors.forename: John
authors.initials: J
authors.lastname: Drennan
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Yao
authors.forename: Gao Qing Max
authors.initials: GQ
authors.lastname: Lu
authors.forename: Jin
authors.initials: J
authors.lastname: Zou
authors.forename: Chengzhong
authors.initials: C
authors.lastname: Yu
mesh_terms: D055032:Electron Microscope Tomography; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry
chemical_list: D013501:Surface-Active Agents; D012822:Silicon Dioxide