Hard-sphere packing and icosahedral assembly in the formation of mesoporous materials.

نویسندگان

  • Jiawei Tang
  • Xufeng Zhou
  • Dongyuan Zhao
  • Gao Qing Lu
  • Jin Zou
  • Chengzhong Yu
چکیده

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.

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عنوان ژورنال:
  • Journal of the American Chemical Society

دوره 129 29  شماره 

صفحات  -

تاریخ انتشار 2007