Self-Assembly of Flowerlike AlOOH (Boehmite) 3D Nanoarchitectures
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- 作者：Jun Zhang ; Sujing Liu ; Jing Lin ; Haisheng Song ; Junjie Luo ; E. M. Elssfah ; E. Ammar ; Yang Huang ; Xiaoxia Ding ; Jianming Gao ; Shouren Qi ; Chengcun Tang
- 刊名：Journal of Physical Chemistry B
- 出版年：2006
- 出版时间：July 27, 2006
- 年：2006
- 卷：110
- 期：29
- 页码：14249 - 14252
- 全文大小：289K
- 年卷期：v.110,no.29(July 27, 2006)
- ISSN：1520-5207
文摘
In this work, a hydrothermal route using an ethanol-water solution to progressively synthesize a sequenceof flowerlike three-dimensional 
-AlOOH boehmite nanostructures without employing templates or matrixesfor self-assembly is presented. The flowerlike boehmite nanoarchitectures exhibit three hierarchies of self-organization, i.e., single-crystalline nanorods, nanostrips, and bundles, which are characterized by scanningand transmission electron microscopy. The sequence of products obtained after different processing timesindicates a self-assembly mechanism. The hydrogen bonding on the surface of nanorods or nanostrips possiblyplays a key role, as identified by FTIR spectra of the products after they had been heated to 1000 
C. Thespecific surface area and pore-size distribution of the obtained product as determined by gas-sorptionmeasurements show that the boehmite nanoarchitectures exhibit high BET surface area and porosity properties.
-AlOOH boehmite nanostructures without employing templates or matrixesfor self-assembly is presented. The flowerlike boehmite nanoarchitectures exhibit three hierarchies of self-organization, i.e., single-crystalline nanorods, nanostrips, and bundles, which are characterized by scanningand transmission electron microscopy. The sequence of products obtained after different processing timesindicates a self-assembly mechanism. The hydrogen bonding on the surface of nanorods or nanostrips possiblyplays a key role, as identified by FTIR spectra of the products after they had been heated to 1000 C. Thespecific surface area and pore-size distribution of the obtained product as determined by gas-sorptionmeasurements show that the boehmite nanoarchitectures exhibit high BET surface area and porosity properties.