Template formation of aluminum–magnesium hydroxide nano-branches on linear poly(ethylene imine)

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• 作者：Tao Xiang ; Lei Zhao ; Yuanbing Li ; Zhongxing Lei ; Shengli Jin ; Shujing Li ; Yawei Li ; Yonghe Liang
• 关键词：Nanomaterials ; Microstructure ; Sol– ; gel preparation ; Electron microscopy
• 刊名：Materials Letters
• 出版年：2008
• 出版时间：15 April 2008
• 年：2008
• 卷：62
• 期：10-11
• 页码：1627-1629
• 全文大小：507 K

文摘

Linear poly(ethylene imine) (PEI) can self-assemble into fibrous aggregates composed of a crystalline core and a brush-like shell of ethylene imine (EI) segments, and thus can be used as “templates” to prepare a range of inorganic materials. To further illustrate the feasibility of this technique, an investigation of low-temperature formation of nanostructured aluminum–magnesium hydroxide (AMH) on linear PEI “templates” is described, and the corresponding reaction mechanism suggested tentatively. AMH nano-branches were formed after hydrolysis of aluminium and magnesium lactates on PEI, indicating the site-selective deposition process of AMH on surfaces of PEI. The technique reported in this paper could be potentially used to fabricate other nanostructured complex metal oxides.