The 'silica garden': a hierarchical nanostructure

被引:53
作者
Collins, C
Zhou, WZ
Mackay, AL
Klinowski, J
机构
[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England
[2] Univ London Birkbeck Coll, Dept Crystallog, London WC1E 7HX, England
关键词
D O I
10.1016/S0009-2614(98)00081-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The bulk of thr 'silica garden', made by seeding a solution of sodium silicate with crystals of aluminium nitrate, is an amorphous aluminosilicate. Transmission electron microscopy reveals a hierarchic substructure involving fine tubes (approximate to 44 nm in diameter) composed of amorphous silica rods. It is also possible that the macroscopic fibres seen by scanning electronmicroscopy contain periodic arrays of microtubules approximate to 4.4 mu m in diameter. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:88 / 92
页数:5
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