Hard-Sphere Packing and Icosahedral Assembly in the Formation of Mesoporous Materials

We report the synthesis and characterization of a novel mesoporous material with a face-centered cubic (fcc) symmetry and intrinsic bimodal pores. Moreover, an icosahedral (ICO) mesostructure with both meso- and macroscale 5-fold symmetry is observed. We propose a hard-sphere packing (HSP) mechanism...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2007-07, Vol.129 (29), p.9044-9048
Main Authors: Tang, Jiawei, Zhou, Xufeng, Zhao, Dongyuan, Lu, Gao Qing, Zou, Jin, Yu, Chengzhong
Format: Article
Language:English
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Summary:We report the synthesis and characterization of a novel mesoporous material with a face-centered cubic (fcc) symmetry and intrinsic bimodal pores. Moreover, an icosahedral (ICO) mesostructure with both meso- and macroscale 5-fold symmetry is observed. We propose a hard-sphere packing (HSP) mechanism for the formation of mesoporous materials by assuming preformed robust surfactant/silicate composite micelles being hard spheres. In comparison to the conventional liquid crystal templating (LCT) or cooperative self-assembly (CSA) mechanism, our contribution provides an important advancement of knowledge in the study of mesostructured materials.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja070999r