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Natureз¢µÄһƪ¹ØÓÚ¹èµÄÑо¿Í¨Ñ¶Dodecagonal tiling in mesoporous silica
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ÎÄÕÂÕªÒª½ÚÑ¡ However, the materials remain far from structurally ideal, in contrast to their intermetallic counterparts, and fine control over the structure through a self-organization process has yet to be attained. Here we use the well-established self-assembly of surfactant micelles to produce a new class of mesoporous silicas, which exhibit 12-fold (dodecagonal) symmetry in both electron diffraction and morphology. Each particle reveals, in the 12-fold cross-section, an analogue of dodecagonal quasicrystals in the centre surrounded by 12 fans of crystalline domains in the peripheral part. |
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2012-07-24 15:30:52, 2.98 M
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